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Langerhans cell histiocytosis (LCH) 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 . [ 1 ]
Letterer–Siwe disease, (LSD) or Abt-Letterer-Siwe disease, is one of the four recognized clinical syndromes of Langerhans cell histiocytosis (LCH) and is the most severe form, involving multiple organ systems such as the skin, bone marrow, spleen, liver, and lung. Oral cavity and gastrointestinal involvement may also be seen.
Congenital self-healing reticulohistiocytosis is a condition that is a self-limited form of Langerhans cell histiocytosis. [2]: ...
non-Langerhans-cell histiocytosis Hemophagocytic lymphohistiocytosis (HLH) II: D76.1: non-Langerhans-cell histiocytosis Niemann–Pick disease: II: E75.2: non-Langerhans-cell histiocytosis Sea-blue histiocytosis: II – non-Langerhans-cell histiocytosis Acute monocytic leukemia: III: C93.0: malignant histiocytic disorders Malignant ...
X-type histiocytoses are a clinically well-defined group of cutaneous syndromes characterized by infiltrates of Langerhans cells, as opposed to Non-X histiocytosis in which the infiltrates contain monocytes/macrophages. [1]: 720 Conditions included in this group are: [1]: 720–4 Congenital self-healing reticulohistiocytosis
Some types of cancers can cause it such as rhabdomyosarcoma, extrosseal Ewing sarcoma, Langerhans cell histiocytosis, congenital leukaemia and neuroblastoma. [1] During normal development of an unborn baby, blood production can occur in the skin until the fifth month of pregnancy. [3]
Juvenile xanthogranuloma is a form of histiocytosis, classified as non-Langerhans cell histiocytosis. [1] [2] It is a rare skin disorder that primarily affects children under one year of age but can also be found in older children and adults. [3] It was first described in 1905 by Adamson. [4]
Diffuse large B-cell lymphoma leg type: CD117: Mast cell: Mastocytosis: CD138: Plasma cell: Multiple myeloma Plasmablastic lymphoma: CD207 (Langerin) Langerhans cell: Langerhans cell histiocytosis: Chloracetate esterase (Leder) Mast cell: Mastocytosis: Chromogranin A: Merkel cell carcinoma: Cystokeratin 7: Paget's disease (breast and ...