panniculitis

- α1-antitrypsin deficiency p. multiple painful subcutaneous nodules occurring in patients with severe antitrypsin deficiency; biopsies show lobular p. with neutrophils and foamy histiocytes. Some patients formerly diagnosed with Weber-Christian disease show this deficiency.
- cytophagic histiocytic p. obsolete term for chronic lobular p. with infiltration by histiocytes that have phagocytized red blood cells, leukocytes, and platelets; a hemorrhagic diathesis or T cell lymphoma may result.
- lupus erythematosus p. p. characterized by erythematous or flesh-colored nodules associated with lupus erythematosus, especially of the discoid variety, on the face, upper extremities, and trunk, and with nodular infiltration of lymphocytes and plasma cells in the fat lobules.
- poststeroid p. subcutaneous nodules developing in children within a month after withdrawal of corticosteroids given to treat the nephrotic syndrome or rheumatic fever; microscopically identical to subcutaneous fat necrosis of the newborn, the condition resolves spontaneously or with steroid readministration.
- relapsing febrile nodular nonsuppurative p. recurrent subcutaneous nodules accompanied by fever and followed by depression of the skin on involution. The nodules show a neutrophilic lobular p. with necrosis, lipid phagocytosis, and subsequent fibrosis. A majority of cases can be classified as factitious, or secondary to α1-antitrypsin deficiency, lupus profundus, pancreatic (enzymatic) fat necrosis, or cytophagic histiocytic p.. Cases of undetermined cause have been called Weber-Christian disease or syndrome. SYN: Christian disease (2), Weber-Christian disease.
- subacute migratory p. nonscarring plaques of changing configuration on the lateral aspect of one or both legs, of many months duration. Biopsy shows septal p. with fibrosis and giant cells. SYN: erythema nodosum migrans.

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pan·nic·u·li·tis pə-.nik-yə-'līt-əs n
1) inflammation of the subcutaneous layer of fat
2) a syndrome characterized by recurring fever and usu. painful inflammatory and necrotic nodules in the subcutaneous tissues esp. of the thighs, abdomen, or buttocks called also relapsing febrile nodular nonsuppurative panniculitis, Weber-Christian disease

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n.
inflammation of the layer of fat beneath the skin, leading to multiple tender nodules in the legs and trunk.

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pan·nic·u·li·tis (pə-nik″u-liґtis) [panniculus + -itis] an inflammatory reaction of the subcutaneous adipose tissue; two primary categories are distinguished, depending on the site, called predominantly lobular p. and predominantly septal p. Cf. steatitis. Called also adipositis.

Medical dictionary. 2011.

Look at other dictionaries:

  • Panniculitis — Classification and external resources ICD 10 M79.3 ICD 9 729.3 …   Wikipedia

  • Panniculitis — Entzündung des Unterhaut Fettgewebes * * * Panniculitis   die, /... tiden, Entzündung des Unterhautfettgewebes (Panniculus adiposus) …   Universal-Lexikon

  • Panniculitis — Klassifikation nach ICD 10 M79.3 Pannikulitis, nicht näher bezeichnet …   Deutsch Wikipedia

  • panniculitis — pan·nic·u·li·tis …   English syllables

  • panniculitis — Weber Christian disease; n. inflammation of the layer of fat beneath the skin, leading to multiple tender nodules in the legs and trunk …   The new mediacal dictionary

  • panniculitis — pəˌnikyəˈlid.ə̇s noun ( es) Etymology: New Latin, from panniculus + itis : inflammation of the subcutaneous layer of abdominal fat …   Useful english dictionary

  • physical panniculitis — panniculitis caused by physical factors, such as cold or a physical trauma …   Medical dictionary

  • traumatic panniculitis — panniculitis, usually of the predominantly lobular type, caused by external trauma. Besides accidental blunt trauma, it may also be caused by cold (cold p.) or self induced trauma (factitial p.) …   Medical dictionary

  • Cytophagic histiocytic panniculitis — (CHP) was first described in 1980 by Winkelmann as a chronic histiocytic disease of the subcutaneous adipose tissue, which is characterized clinically by tender erythematous nodules, recurrent high fever, malaise, jaundice, organomegaly, serosal… …   Wikipedia

  • Cold panniculitis — is a skin condition characterized by inflammation of the subcutaneous fat after exposure to cold, most often seen in infants and young children.[1]:491 This condition has been described in children who suck ice or popsicles, and therefore is… …   Wikipedia

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