title: Pancreatic panniculitis.
abstract: BACKGROUND
  Pancreatic panniculitis is a rare disease in which necrosis of fat in the panniculus and other distant foci occurs in the setting of pancreatic disease.
  
  
  OBJECTIVE
  Our purpose was to study the clinical and histopathologic features of this disease.
  
  
  METHODS
  We conducted a retrospective review of 11 patients.
  
  
  RESULTS
  In five patients subcutaneous fat necrosis preceded the diagnosis of pancreatic disease by an average of 13 weeks. Five of our patients had underlying pancreatitis, and the remainder had carcinoma of the pancreas. Joint manifestations were prominent in six patients. Intestinal submucosal fat necrosis developed in two cases and caused massive gastrointestinal bleeding in one. Acute lesions demonstrated focal fat necrosis with "ghost cells," pathognomonic of this condition. Chronic lesions showed granulomatous and lipophagic panniculitis, with rare areas of basophilic fat necrosis. Cholecystectomy for gallstone pancreatitis was curative in two patients.
  
  
  CONCLUSIONS
  Pancreatic panniculitis has distinctive clinical and pathognomonic histopathologic findings that can be the presenting features of pancreatic disease.
authors.affiliation: Department of Dermatology, Mayo Clinic, Rochester, MN 55905, USA.
authors.forename: P R
authors.initials: PR
authors.lastname: Dahl
authors.forename: W P
authors.initials: WP
authors.lastname: Su
authors.forename: K C
authors.initials: KC
authors.lastname: Cullimore
authors.forename: C H
authors.initials: CH
authors.lastname: Dicken
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D001168:Arthritis / Q000209:etiology; D002277:Carcinoma / Q000150:complications; D002769:Cholelithiasis / Q000150:complications; D002908:Chronic Disease; D005218:Fat Necrosis / Q000209:etiology* / Q000473:pathology; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006801:Humans; D007410:Intestinal Diseases / Q000209:etiology; D008297:Male; D008875:Middle Aged; D010182:Pancreatic Diseases / Q000150:complications*; D010190:Pancreatic Neoplasms / Q000150:complications; D010195:Pancreatitis / Q000150:complications; D015434:Panniculitis / Q000209:etiology* / Q000473:pathology; D010257:Paraneoplastic Syndromes / Q000209:etiology; D012189:Retrospective Studies; D012883:Skin Ulcer / Q000209:etiology