systemic histiocytosis

histiocytosis /his·tio·cy·to·sis/ (-si-to´sis) a condition marked by an abnormal appearance of histiocytes in the blood.

acute disseminated Langerhans cell histiocytosis Letterer-Siwe disease.

Langerhans cell histiocytosis a generic term for a group of disorders characterized by proliferation of Langerhans cells (q.v.), believed to arise from disturbances in regulation of the immune system. Lesions may be unifocal or multifocal and may involve the bone marrow, endocrine system, or lungs.

sinus histiocytosis a disorder of the lymph nodes in which the distended sinuses are filled by histiocytes, as a result of active multiplication of the littoral cells.

histiocytosis X former name for Langerhans cell h.

his·ti·o·cy·to·sis (h

-t

n. pl. his·ti·o·cy·to·ses (-s

Abnormal multiplication of histiocytes. Also called histocytosis.

histiocytosis [his″te-o-si-to´sis]

a condition marked by the abnormal appearance of histiocytes in the blood.

Langerhans cell histiocytosis a generic term that encompasses a group of disorders characterized by proliferation of Langerhans cells, which are specialized cells found in the epidermis that function as part of the immune system. These disorders are believed to arise from disturbances in regulation of the immune system. Children are more often affected than adults, and the bone marrow, endocrine system, and lungs may be involved (the lungs are affected more commonly in adults than in children). Langerhans cell histiocytosis is divided into unifocal and multifocal variants; there is also an acute, disseminated form (letterer-siwe disease). This group of disorders was formerly called histiocytosis X and was classified in three forms: Letterer-Siwe disease, Hand-Schüller-Christian disease, and eosinophilic granuloma. Called also eosinophilic granuloma, eosinophilic granulomatosis, and Langerhans cell granulomatosis.

Langerhans cell histiocytosis, acute disseminated Letterer-Siwe disease.

Langerhans cell histiocytosis, multifocal Langerhans cell histiocytosis occurring as erosive accumulations of proliferating Langerhans cells. It occurs most commonly in the marrow cavities of bones, but may also affect the skin, gingiva, lungs, and stomach. When the triad of involvement of the bones of the skull, exophthalmos, and diabetes insipidus is present, it is referred to as Hand-Schüller-Christian disease.

Langerhans cell histiocytosis, unifocal Langerhans cell histiocytosis occurring as a single osteolytic lesion, usually in a long or flat bone; it may be asymptomatic or may produce bone pain, tenderness, and swelling and, sometimes, pathologic fracture.

histiocytosis X former name for Langerhans cell histiocytosis.

histiocytosis

a condition marked by the abnormal appearance of histiocytes in the blood.

cutaneous histiocytosis

a benign proliferative disease in dogs, particularly Collies and Shetland sheepdogs. there are multiple plaques or nodules in the skin or subcutaneous tissue. The cause is unknown.

lipid histiocytosis

Niemann-Pick disease.

malignant histiocytosis

a systemic, progressive invasive proliferation of neoplastic histiocytes. Recognized as a familial disorder in Bernese mountain dogs with clinical signs of respiratory disease, involvement of the central nervous system, and anemia.

systemic histiocytosis

a proliferative disorder of histiocytes with infiltrates in the skin and lymph nodes. Occurs in young Bernese mountain dogs.

Mentioned in	?		References in periodicals archive	?		Medical browser	?		Full browser	?
Addison's disease Albers-Schönberg disease allergic granulomatosis granulomatosis granulomatosis siderotica histiocytic histiocytic lesion histiocytic medullary reticulosis histiocytosis X histiocytosis, Langerhans cell Langerhans' cell histiocytosis Letterer-Siwe disease lipid histiocytosis lymphomatoid granulomatosis malignant histiocytosis periodontal disease Red Pulp Disease Sinus histiocytosis with massive lymphadenopathy Wegener's granulomatosis	Results of treatment of 127 patients with systemic histiocytosis. Langerhans' cell histiocytosis: current trends and the role of the ... by Rice, Dale H. / Ear, Nose and Throat Journal	syssarcosis Syst-Eur systaltic system system documentation system of care system overload systema systematic systematic care systematic desensitization systematic error systematic heating systematic name systematic review systematic tabulation systematically systematized delusion Systeme International d'Unites Système International d'Unités systemic systemic anaphylaxis systemic circulation systemic desensitization systemic heart systemic histiocytosis systemic hypertension systemic idiopathic fibrosis systemic immunoblastic proliferation systemic infection systemic inflammatory response syndrome systemic lesion systemic lupus erythematosus systemic memory hypothesis systemic mycosis systemic onset juvenile rheumatoid arthritis systemic oxygen consumption systemic regulation systemic remedy systemic sclerosis systemic therapy systemic toxin clearance: dialysis systemic vascular resistance Systemic vasculitis systemic vein systemic venous hypertension systemic-onset juvenile rheumatoid arthritis systems integration systems software systems theory systole	systemic circulation systemic circulation systemic circulation Systemic Conservation of Animal and Poultry Genetic Resources Systemic Corticosteroids Systemic death Systemic Deep Tissue Therapy systemic desensitization Systemic disease Systemic disease Systemic disease Systemic disease Systemic Disease of Connective Tissue systemic disease-induced gingivitis systemic disease-induced gingivitis systemic disease-induced gingivitis Systemic Ectodermal and Mesodermal Baculovirus systemic factors etiology systemic factors etiology systemic factors etiology systemic fluoride systemic fluoride systemic fluoride Systemic functional grammar systemic grammar Systemic Head and Neck systemic heart Systemic herbicide Systemic herbicide Systemic herbicide systemic histiocytosis systemic hypertension systemic hypertension systemic idiopathic fibrosis systemic immunoblastic proliferation Systemic infection Systemic infection Systemic infection Systemic Infections Associated with Pulmonary Artery Catheterization systemic inflammation response syndrome (SIRS) systemic inflammation response syndrome (SIRS) systemic inflammation response syndrome (SIRS) systemic inflammation response syndrome (SIRS) Systemic Inflammatory Disease systemic inflammatory response (SIR) systemic inflammatory response (SIR) systemic inflammatory response (SIR) systemic inflammatory response (SIR) Systemic inflammatory response syndrome Systemic inflammatory response syndrome Systemic inflammatory response syndrome Systemic inflammatory response syndrome Systemic inflammatory responses Systemic inflammatory responses Systemic Infrastructure Initiative Systemic Initiative for Montana Mathematics and Science Systemic insecticide Systemic insecticide Systemic insecticide Systemic Juvenile Idiopathic Arthritis Systemic Juvenile Rheumatoid Arthritis

Mentioned in

References in periodicals archive

Medical browser

Full browser