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Langerhans cell histiocytosis SlideShare

Unifocal Langerhans Cell Histiocytosis (unifocal eosinophilic granuloma) <ul><li>usually affects skeletal system </li></ul><ul><li>may be asymptomatic or may cause pain and tenderness </li></ul><ul><li>an indolent disease </li></ul>www.freelivedoctor.com. 17 Pulmonary Langerhans Cell Histiocytosis (Plch), Eosinophilic Granuloma Of The Lung You just clipped your first slide! Clipping is a handy way to collect important slides you want to go back to later. Now customize the name of a clipboard to store your clips. Name

Histiocytosis - SlideShar

  1. Langerhans cells Bone marrow-derived antigen processing cells. The most peripheral extension of the immune system. These cells were considered to be histiocytes. The pathologic proliferation of these cells is referred to as LCH. CELL OF ORIGIN: LANGERHANS CELL HISTIOCYTES www.indiandentalacademy.com 66
  2. histiocitosis de celulas de langerhans pulmona
  3. Langerhans Cell Histiocytosis. Description: Histiocytosis of mononuclear phagocytes other than Langerhans cells allografting, hematopoietic stem cell transplantation, cyclosporin A,prednisoe. - PowerPoint PPT presentation. Number of Views: 1256. Avg rating:3.0/5.0. Slides: 26
  4. Langerhans Cell Histiocytosis Chris Restrepo Introduction and Background Sometimes referred to as histiocytosis X LCH is a disease of abnormal clonal proliferation - A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 3b6cd1-ZTAx
  5. Ear discharge may result from extension of scalp rash and secondary infection status, temperature, lumps/bumps, rashes, bruising, jaundice, ear discharge, - A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 23e5a7-ZWNk
  6. ation. Synonyms: Histiocytosis X, Langerhans cell granulomatosis

Langerhans cell histiocytosis (LCH) is a group of idiopathic disorders characterized by the presence of cells with characteristics similar to bone marrow-derived Langerhans cells juxtaposed against a backdrop of hematopoietic cells, including T-cells, macrophages, and eosinophils. In 1868, Paul Langerhans discovered the epidermal dendritic ce.. Complications of Langerhans Cell Histiocytosis and its management By: Dr Mahdi Shahriari, Pediatric Hematologist Oncologist. Affiliation: Department of Pediatrics, Shiraz University of Medical Sciences, Shiraz, Iran. 11 th National congress of IPHOS, Kish Islan Langerhans cell histiocytosis (LCH) is a disorder that primarily affects children, but is also found in adults of all ages. People with LCH produce too many Langerhans cells or histiocytes , a form of white blood cell found in healthy people that is supposed to protect the body from infection Langerhans cell histiocytosis is an abnormal clonal proliferation of Langerhans cells, abnormal cells deriving from bone marrow and capable of migrating from skin to lymph nodes. Symptoms range from isolated bone lesions to multisystem disease. LCH is part of a group of syndromes called histiocytoses, which are characterized by an abnormal proliferation of histiocytes. These diseases are related to other forms of abnormal proliferation of white blood cells, such as leukemias and lymphomas. The Langerhans cell histiocytosis (LCH) is a bone marrow-derived immature myeloid dendritic cell proliferative disorder with diverse clinical manifestations commonly involves bone, skin, lymph node and lung . Oral involvement is uncommon

Introduction: Langerhans Cell Histiocytosis (LCH) is a rare disorder due to accumulation of cells of the mononuclear phagocytic system. It can affect single or multiple organs causing destructive lesions that may lead to aggressive disabilities and adversely affect the quality of life. Cases: We present two pediatric patients who presented with different head and neck manifestations and were. Thyroid gland involvement by Langerhans cell histiocytosis is extremely rare. A 35-year-old woman with a history of a suprasellar mass previously diagnosed as a ganglioglioma and complicated by diabetes insipidus, hypogonadotropic hypogonadism, and central hypothyroidism presented with acute onset of neck enlargement Langerhans cell histiocytosis (LCH) is a disease characterized by clonal expansion of myeloid precursors that differentiate into CD1a + /CD207 + in lesions. It presents at all ages with various degrees of systemic involvement, and although cure rates are high, severe long-term neurological or endocrine complications may affect quality of life Pulmonary Langerhans cell histiocytosis is usually identified in young adults (20-40 years of age). A history of current or previous cigarette smoking is identified in up to 95% of cases 1,4. It is a rare disorder with no well-established gender predilection, which appears to be more common in Caucasian populations 4 Langerhans Cell Histiocytosis (Histiocytosis X) High Quality Pathology Images of Orthopedic, Tumor-like Lesions of Bone, Langerhans' cell histiocytosis. Home; Slides Slide Index. Slide Index Categories . Neuropath. slide 2 of 4. Tweets by @WebPathology. Advertisemen

Langerhans Cell Histiocytosis. Home Hematopathology Myeloid, Histiocytic & Dendritic Cell Neoplasms Langerhans Cell Histiocytosis Langerhans' cell histiocytosis High Quality Pathology Images of Orthopedic: Tumor-like Lesions of Bone of Langerhans' cell histiocytosis Langerhans Cell Histiocytosis (LCH) - Children. Guidelines for diagnosis, clinical work-up and treatment during childhood; Version 1.1, March 2011. Riccardo Haupt (Leader and Editor) 1, Itziar Astigarraga 2, Eva Schaefer 3, Jean Donadieu 3, Maarten Egeler 4, Gritta Janka 5, Rima Jubran 6, Dragan Micic 7, Milen Minkov 8, Vasanta Nanduri 9.

Pulmonary langerhans cell histiocytosis. 1. MARLON MIZAEL GARCIA HERNANDEZ Medico residente IDT. Hospital Regional De Alta Especialidad. 2. Histiocytosis de células de Langerhans pulmonar. En 2007 Un hombre de 47 años afroamericano presento respiraciones cortas y neumonía recurrente. Hipertensión pulmonar. Enfermedad arterial coronaria Langerhans cell histiocytosis (LCH) is a rare disorder characterized by proliferation of Langerhans cells (LC), myeloid histiocytes originating from bone marrow that reside in the skin. LC function similarly to den-dritic cells, playing a role in antigen recognition and presentation.1,2 LC Langerhans' cell histiocytosis. Langerhans' cell histiocytosis (LCH) is a very rare condition with a high survival rate. Histiocyte cells normally help protect the skin, but sometimes the body has too many of them and they move around the body, causing damage. LCH can affect bones or organs and the symptoms present in a number of different ways

Pulmonary Langerhans Cell Histiocytosis (Plch - SlideShar

Introduction. Langerhans cell histiocytosis (LCH) is a disease characterized by clonal expansion of myeloid precursors that differentiate into CD1a + /CD207 + in lesions. It presents at all ages with various degrees of systemic involvement, and although cure rates are high, severe long-term neurological or endocrine complications may affect quality of life 1. Introduction. Langerhans cell histiocytosis (LCH) is a bone marrow-derived immature myeloid dendritic cell proliferative disorder with diverse clinical manifestations commonly involves bone, skin, lymph node and lung [].Oral involvement is uncommon Langerhans cell histiocytosis is a rare disorder that can damage tissue or cause lesions to form in one or more places in the body. Langerhans cell histiocytosis (LCH) is a rare disease that begins in LCH cells.LCH cells are a type of dendritic cell that normally helps the body fight infection.Sometimes mutations (changes) develop in genes that control how dendritic cells function We performed a study of heparanase expression in specimens obtained from patients with Langerhans cell histiocytosis (LCH). Paraffin embedded slides from 25 patients were studied by immunohistochemistry for heparanase. Most patients had positive staining for heparanase (21/25) Langerhans cell histiocytosis is due to uncontrolled monoclonal proliferation of Langerhans cells (distinctive cells of monocyte-macrophage lineage) and should be considered a malignancy although its biological behavior is very variable 1,3 . An immune-mediated mechanism has been postulated

Langerhans cell histiocytosis (LCH) is a rare cancer involving clonal proliferation of Langerhans cells, abnormal cells deriving from bone marrow and capable of migrating from skin to lymph nodes.Symptoms range from isolated bone lesions to multisystem disease.LCH is part of a group of syndromes called histiocytoses, which are characterized by an abnormal proliferation of histiocytes (an. Langerhans cell histiocytosis (LCH) is a rare disease characterized by the proliferation of Langerhans cells. Formerly known as histiocytosis X, LCH includes Letterer-Siwe disease, Hand-Schuller-Christian disease, and eosinophilic granuloma. Although LCH could affect any organ, bones were most affected, especially vertebral bodies, long. Langerhans Cell Histiocytosis of the Female Genital Tract Constantine A. Axiotis, MD,* Maria J. Merino, MD,t and Paul H. Duray, MD$ Langerhans cell histiocytosis (LCH) of the female genital tract is rare. Four new cases are reported, and there is a review of the 38 cases in the literature. Thi

Background: Bone marrow changes and their relation to blood cytopenia in patients with Langerhans cell histiocytosis (LCH) have not been extensively studied to date. The aim of the present study was to characterize the bone marrow changes in LCH patients and to ascertain their relation to disease severity Langerhans cell histiocytosis is a disease that can damage tissue or cause lesions to form in one or more places in the body. Langerhans cell histiocytosis is a disorder in which excess immune system cells called Langerhans cells build up in the body. Langerhans cells, which help regulate the immune system, are normally found throughout the body, especially in the skin, lymph nodes, spleen.

Langerhans cell histiocytosis (LCH) has been previously thought of as a rare illness, but is now increasingly diagnosed as a result of the more intensive investigations of patients with cystic pulmonary disease. In recent years, treatments developed from our new understanding of the molecular biology of malignant disease have been applied to. Intradural dirofilariasis mimicking a Langerhans cell histiocytosis tumor. Perret-Court A(1), Coulibaly B, Ranque S, Bouvier C, Lena G, Coze C, Verschuur A. Author information: (1)Department of Pediatric Oncology, Hôpital de la Timone Enfants, Marseille, France. audrey.perret-court@mail.ap-hm.f Bassel Ericsoussi, MD Pulmonary and Critical Care Fellow University of Illinois at Chicag Rosai-Dorfman disease and Langerhans cell histiocytosis are both disorders of accessory immune cells. Two cases have been previously reported of concurrent Langerhans cell histiocytosis and Rosai-Dorfman disease. In this report, we characterize the findings and selected molecular studies in nine add Background. Langerhans cell histiocytosis (LCH), also called histiocytosis X, is a rare clonal pathology characterized by infiltration of Langerhans cells [].The World Health Organization (WHO) considers LCH to be a neoplastic pathology of the hematopoietic compartment, presenting BRAF V600E mutations in approximately 50% of patients and MAPK/ERK mutations in approximately 90% of patients

Langerhans Cell Histiocytosis (Histiocytosis X) High Quality Pathology Images of Orthopedic, Tumor-like Lesions of Bone, Langerhans' cell histiocytosis. Home; Slides Slide Index. Slide Index Categories . Neuropath. slide 3 of 4. Tweets by @WebPathology. Advertisemen Langerhans cell histiocytosis (LCH) is considered a neo-plasia of Langerhans cells expressing S‐100, CD1a and CD207.1,2 Previous reports have suggested that LCH cells are more closely related to myeloid dendritic cell precursors than to Langerhans cells.3 LCH involves any organs in-cluding the central nervous system (CNS).1,2 There are n Childhood LCH is a rare disease, affecting 4-9 per 1,000,000 children below the age of 15 years. It is driven by somatic mutations in the MAPK pathway, arising in myeloid marrow progenitors. Both genders are affected by a slight male preponderance. The clinical spectrum of LCH varies from a single lesion affecting one organ system to severe multisystem disease with dysfunction of vital organs Langerhans cell histiocytosis (LCH) and Erdheim-Chester disease (ECD) are rare inflammatory myeloid neoplasms principally caused by mutations in the MEK-extracellular signal-regulated kinase (ERK) signaling pathway, most commonly involving BRAF. 1-5 LCH has a peak of incidence in childhood, but an increasing number of adults are now also diagnosed, including some with a poor outcome because. Langerhans cell histiocytosis (LCH), previously known as histiocytosis X, is believed to be an autoimmune disorder. There is no obvious sex predilection although familial incidence has been reported. The disseminated form of this disease (Letterer-Siwe disease) is found in infants and young children, whereas the localized form (eosinophilic.

LANGERHANS CELLS IN HEALTH & DISEASE - SlideShar

Summary. Langerhans cell histiocytosis (LCH) is an inflammatory myeloid neoplasia caused by alterations (mutations) of several genes in the MAPKinase pathway. Several important studies published from 2010 to 2016 have immensely clarified the biology of LCH. (Badalian-Very, Berres, Chakrobarty) The cell of origin is a white blood cell known as a. Langerhans cell histiocytosis is a rare, multisystem disease that shows a particular predilection for hypothalamo-pituitary axis involvement. Diabetes insipidus is the most frequent permanent consequence of Langerhans cell histiocytosis, developing in around a quarter of patients. Although the exact prevalence of anterior pituitary hormone deficiencies is not known, it is probably high and. Langerhans cell histiocytosis (LCH) consists of lesions composed of cells with a dendritic Langerhans cell (LC) phenotype. The clinical course of LCH ranges from spontaneous resolution to a chronic and sometimes lethal disease. We studied 25 patients with various clinical forms of the disease

Pulmonary langerhans cell histiocytosis

Focused Pulmonary Langerhans Cell Histiocytosis with stained slides of pathology. Follow us: 11161 Images : Last Website Update : Jul 16, 2021. Pulmonary Langerhans Cell Histiocytosis High Quality Pathology Images of Pulmonary: Miscellaneous Lung Tumors of Pulmonary Langerhans Cell Histiocytosis. Home; Slides Slide Index. Slide Index Categories. Langerhans-cell-histiocytosis Symptom Checker: Possible causes include Intertrigo. Check the full list of possible causes and conditions now! Talk to our Chatbot to narrow down your search Langerhans cell histiocytosis (LCH) affects mainly young children and features accumulation of CD1a + Birbeck granule + cells within the epidermis and dermis, the bones, and occasionally lymphoid organs, lungs, and digestive tract.1-4 A frequent clinical feature is a skin eruption in the first months or days after birth. It may spontaneously resolve (Hashimoto-Pritzker syndrome) or be part of. Background. Cutaneous Langerhans cell histiocytosis (LCH) is a rare disorder manifest in the proliferation of cells with phenotypical characteristics of Langerhans cells which involves the cutaneous structures 1.We have used the term 'cutaneous' in this review to differentiate from 'skin-limited' which implies the absence of systemic disease involvement 1,2 Langerhans cell histiocytosis (LCH) is a rare disorder showing a wide spectrum of clinical manifestations ranging from single cutaneous lesions to multifocal systemic disease [ 1, 2]. The typical infiltration consists of pathological monoclonal Langerhans cells together with lymphocytes, eosinophilic granulocytes and non-dendritic histiocytes [ 3]

Langerhans cell histiocytosis (LCH) and Erdheim-Chester disease (ECD) are caused by mutations of the MAPK pathway, most often BRAFV 600E, in myeloid dendritic cells that lead to some overlapping and other unique presentations of the two diseases.LCH occurs in both children and adults, but ECD is primarily found in the latter Non-Langerhans cell histiocytosis (non-LCH) is a rare multisystemic disorder thought to be derived from dendritic cells or macrophages. Juvenile xanthogranuloma (JXG), Erdheim-Chester disease (ECD), and Rosai-Dorfman disease (RDD) previously were categorized as non-LCH disorders Langerhans cell histiocytosis. In the rare disease Langerhans cell histiocytosis (LCH), an excess of cells similar to these cells are produced. However LCH cells stain positive to CD14 which is a monocyte marker and shows a different, hematopoietic origin for the disorder. LCH can cause damage to skin, bone and other organs Langerhans cell histiocytosis (LCH) is characterized by the proliferation of mononuclear cells resulting in granulomatous lesions. Patients may present with isolated or systemic disease 1 . Bone lesions are the most common manifestation of LCH radiologically occurring in around 80% of patients. Most commonly LCH affects flat bones with the. In addition, Langerhans cells in the dog and cat express CD1a, CD18, and E-cadherin. Crucially, E-cadherin is differentially expressed on Langerhans cells and not on interstitial dendritic cells, the origin of systemic histiocytosis, cutaneous histiocytosis, histiocytic sarcoma, feline progressive histiocytosis, and dendritic cell leukemia

Langerhans Cell Histiocytosis & Osteosarcoma Symptom Checker: Possible causes include Langerhans-Cell Histiocytosis. Check the full list of possible causes and conditions now! Talk to our Chatbot to narrow down your search Discussion. Langerhans cell histiocytosis (LCH) is a rare systemic disorder characterized by idiopathic proliferation of histiocytes, called Langerhans cells, in different organs including the bones, lungs, central nervous system, liver and spleen, skin, thymus and lymph nodes

INTRODUCTION. Langerhans cell histiocytosis (LCH) is a rare group of diseases characterized by accumulation and infiltration of histiocytes and dendritic cells driven by mutations in the mitogen-activated protein kinase pathway [].The estimated annual incidence of LCH is 1:500 000, mainly affecting males under 3 years old [].LCH may characterize as a single-system (unifocal or multifocal) and. Langerhans cell histiocytosis (LCH) is a potentially fatal condition characterized by granulomatous lesions with characteristic clonal mononuclear phagocytes (MNPs) harboring activating somatic.

PPT - Langerhans Cell Histiocytosis PowerPoint

Pulmonary Langerhans Cell Histiocytosis (Plch

PPT - Langerhans' Cell Histiocytosis PowerPoint

Langerhans cell histiocytosis (LCH) is a rare histiocytic proliferative disorder of unknown etiology that mainly affects young children. The histological feature is the granuloma-like proliferation of Langerhans-type dendritic cells. The possible role of viruses such as Epstein-Barr virus (EBV, HHV-4), human herpesvirus-6 (HHV-6), herpes simplex virus (HSV) types 1 and 2, and cytomegalovirus. The median amount of Langerhans cell histiocytosis versus Rosai-Dorfman disease involvement was 7.5% (5-15%) versus 92.5% (80-95%), respectively. Most cases showed subtotal involvement of.

PPT - Clinical Presentation and Diagnosis of Childhood

Langerhans cells are a type of non-lymphoid mononu-clear cell involved in inflammatory responses, and Langer-hans cell histiocytosis (LCH) is their neoplastic prolifera-tion, the clonality of which was first reported by in 1994 (1-3). These immature dendritic cells express lysosomal enzymes, CD1a, cytoplasmic S-100 protein, and langeri Definition : Langerhans cell histiocytosis (histiocytosis X) is a disorder of unknown etiology characterized by solitary (eosinophilic granuloma) or multiple bone and visceral masses.. Cytologically, the smears are hypercellular with numerous Langerhans cell histiocytes, which are large, polygonal cells with eosinophilic cytoplasm and oval nuclei with longitudinal grooves ('coffee bean. Langerhans cell histiocytosis (LCH) is a clonal proliferation of bone-marrow derived dendritic cells that is thought to be neoplastic in most cases. Neoplastic LC are uniformly positive for CD1a, langerin/CD207, and S100 and frequently express CD68 Langerhans cell hystiocytosis (LCH) is a clonal neoplastic proliferation of langerin / CD1a / S100 positive dendritic cells (Langerhans-like cells) LCH cells initially thought to arise from the epidermal or mucosal derived Langerhans cell due to the morphologic, immunophenotypic and ultrastructural similarities; however, gene expression.

KMU Pathology Lab《Slide 104

Langerhans Cell Histiocytosis Clinical Presentation

Complications of Langerhans Cell Histiocytosis and its

Langerhans Cell Histiocytosis (LCH) is a rare disease involving clonal proliferation of langerhans cells, abnormal cells deriving from bone marrow and capable of migrating from skin to lymph nodes.Clinically, its manifestations range from isolated bone lesions to multisystemic disease. The disease is part of a group of clinical syndromes called histiocytoses, which are characterized by an. The Langerhans cell tumors were classified into Langerhans cell histiocytosis (LCH) and Langerhans cell sarcoma (LCS) by the World Health Organization (WHO) in 2001. LCS is a rare dendritic cell tumor, and the WHO defined it as having typical features of malignant cytology as a high-grade variant of LCH . The diagnosis of LCS is difficult, and. Langerhans cell histiocytosis, a disorder of antigen-presenting cells, the Langerhans-type cells, is the commonest disorder of the mononuclear phagocytic system. 1 1 Haupt R, Minkov M, Astigarraga I, et al. Langerhans cell histiocytosis (LCH): guidelines for diagnosis, clinical work-up, and treatment for patients till the age of 18 years.

Langerhans cell histiocytosis Genetic and Rare Diseases

ObjectiveTo assess clinical and MRI features of Langerhans cell histiocytosis in the pelvis and extremities.Materials and methodsThe MRI and clinical features of 21 pathologically proven cases of LCH involving the pelvis and extremities were studied. Multiple characteristics of the lesions were evaluated (location, size, T1/ T2/post-contrast features, perilesional bone and soft tissue signal. Langerhans cell histiocytosis (LCH) in adults is a lot like LCH in children and can form in the same organs and systems as it does in children. These include the endocrine and central nervous systems, liver, spleen, bone marrow, and gastrointestinal tract. In adults, LCH is most commonly found in the lung as single-system disease

Langerhans cell histiocytosis - Wikipedi

The occurrence of concurrent Langerhans cell histiocytosis and non-Langerhans cell histiocytosis is an unusual event. While rare, cases of developing xanthogranuloma (XG) as a sequela of LCH have been reported in children [21]and as a consequence to chemotherapy in adults [22-24]. The patient in this case report wa Langerhans cells with characteristic grooves and folds. On Immunohistochemical evaluation, these cells stain positively for CD1a and S-100.[5] How to cite this article: Bhat S, Nazir P, Bashir H, Reshi R, Sheikh S, Wani R. Clinicopathological pattern of cranial unifocal Langerhans cell histiocytosis: A study at medical college hospital Langerhans cell histiocytosis is a disease of myeloid dendritic cells, lymphocytes, and macrophages mixed with eosinophils and neutrophils. [1] The accumulation of these cells causes the classic lytic bone lesions, skin rashes, lymphadenopathy, splenomegaly, and organ dysfunction of the pituitary, lung, liver, and bone marrow Immunohistochemistry: Lymphocytes predominantly CD3+ and scattered CD20+ cells, histiocytic cells CD163+, CD1a+ and occassional S100+ cells A. Langerhans cell histiocytosis B. Indeterminate cell histiocytosis C. Xanthogranuloma D. Rosai-Dorfman diseas Powerpoint slides. Images. American Roentgen Ray Society Images of Langerhans cell histiocytosis All Images X-rays Echo & Ultrasound CT Images MRI; Ongoing Trials at Clinical Trials.gov. US National Guidelines Clearinghouse. NICE Guidance. FDA on Langerhans cell histiocytosis. on Langerhans cell histiocytosis. Langerhans cell histiocytosis in.

In humans Langerhans cell histiocytosis (LCH) comprises a variety of rare disorders of unknown etiology, which are associated with single or multiple mass lesions composed of cells with an abnormal Langerhans cell phenotype. 18, 34 Several organs including skin, lung, bone, pituitary gland, liver, lymph nodes, and thyroid may be involved. 18. Heparanase is an endo‐beta D‐glucuronidase capable of cleaving heparan sulfate side chains, yielding heparan sulfate fragments. Heparanase activity has been correlated with the metastatic potential of tumor‐derived cells, angiogenesis, autoimmunity and inflammation. We performed a study of heparanase expression in specimens obtained from patients with Langerhans cell histiocytosis (LCH. Figure 1 Imaging abnormalities of CNS Langerhans cell histiocytosis. Coronal T1 MRI with contrast-enhancing mass involving infundibulum (A) and hypothalamus (B). Axial fluid-attenuated inversion recovery signal abnormality (C) of optic chiasm, tracts, and hypothalamus Langerhans cell histiocytosis (LCH) is a disease characterized by clonal proliferation and excessive accumulation of disseminated forms of dendritic Langerhans cells. The aims of the study were to describe clinico-pathological presentations of thirteen new cases of LCH of the oral cavity and to present its differential diagnoses Langerhans cell histiocytosis (LCH) is a rare idiopathic disease characterized by the clonal proliferation of Langerhans cells. LCH affects five children per million population. The peak incidence is from 1 to 4 years of age. LCH involves the head and neck region quite commonly. Oral soft tissue lesions are also common

Langerhans' cell histiocytosis (LCH) is a destructive osseous lesion characterized by eosinophils and histiocytes. Eosinophilic granulomata is a localized and mildest form of LCH. A four year old girl presented with mild pain and mobility of prematurely seen mandibular permanent first molar and primary molars on the right side of mandibular region. The gingiva in the involved area was. Langerhans cell histiocytosis is a type of cancer that can damage tissue or cause lesions to form in one or more places in the body. Family history of cancer or having a parent who was exposed to certain chemicals may increase the risk of LCH Histiocytosis, also referred to as Langerhans Cell Histiocytosis (LCH), and formally called Histiocytosis X, represents a group of rare disorders involving specific cells that normally have important roles as part of the immune system. While the cause of LCH is unknown, LCH can frequently behave like cancer and so is treated by cancer specialists Pulmonary Langerhans'-cell histiocytosis in adults is a rare interstitial lung disease, and its course and outcome have not been well defined. In this study, the records of 102 adults with clearly. Langerhans cell sarcoma is a rare and aggressive high grade hematopoietic neoplasm with a dismal prognosis. It has a unique morphological and immunotypic profile with a CD1a/ langerin/S100 + phenotype. T cell lineage markers except for CD4 in Langerhans cell sarcoma have not been documented previously. We report a case of 86 year-old male of Caucasian descent who presented with an enlarging.

In Langerhans cell histiocytosis pulmonary involvement is often isolated. It is rarely a part of a multifocal form. Tenosynovitis is exceptional. Hand bones involvement is atypical. We report the case of a 75-year-old, non-smoker man, without medical history, who presented with arthritis and fever. Examination found arthritis affecting large and small joints Langerhans cell histiocytosis is a histiocytic proliferation derived from Langerhans cells. When occurring in the lymph node, the low power morphology resembles that of ERDD. It also occurs in extranodal sites, where it shows aggregates of histiocytes and mixed inflammatory cells, especially eosinophils

Vertebra plana or pancake vertebra - is the term givenOral manifestations of systemic diseasesLangerhanse Cell HistiocytosisHistiocytosis x by dr kartik sood148 Skull tumour & GB 21