title: Xanthogranulomatous sialadenitis clinically mimicking a malignancy: case report and review of the literature.
abstract: BACKGROUND
  Xanthogranulomatous tissue reaction is a well-documented process that is most common in kidney. There are other uncommon sites being documented as case reports in the literature. We would like to describe the clinicopathologic findings in a case of xanthogranulomatous sialadenitis that involved the parotid gland, which was clinically thought to be a tumoral mass, and compare it with the 4 previously reported cases.
  
  
  METHODS
  A 52-year-old man presented with a left parotid mass. Fine needle aspiration biopsy was consistent with Warthin's tumor. The mass lesion was excised.
  
  
  CONCLUSIONS
  The lesion measured 2.5 × 1.5 × 1.5 cm. Microscopic examination revealed sheets of foamy macrophages centrally admixed with neutrophils, eosinophils, lymphocytes, plasma cells and scattered giant cells indicating a xanthogranulomatous reaction.                 As a conclusion xanthogranulomatous tissue reaction can mimic neoplasms.
authors: Department of Pathology, İstanbul Bilim University, Faculty of Medicine, Istanbul, Turkey. ilknurcetinaslan@hotmail.com
authors: Ilknur
authors: I
authors: Türkmen
authors: Nuray
authors: N
authors: Başsüllü
authors: Ismet
authors: I
authors: Aslan
authors: Cem
authors: C
authors: Çomunoğlu
authors: Gülen Bülbül
authors: GB
authors: Doğusoy
mesh_terms: D000235:Adenolymphoma / Q000175:diagnosis; D044963:Biopsy, Fine-Needle / Q000379:methods; D003937:Diagnosis, Differential; D004804:Eosinophils / Q000473:pathology; D005487:Foam Cells / Q000473:pathology; D015726:Giant Cells / Q000473:pathology; D006099:Granuloma / Q000175:diagnosis*; D006801:Humans; D008214:Lymphocytes / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009504:Neutrophils / Q000473:pathology; D010305:Parotid Diseases / Q000175:diagnosis*; D010307:Parotid Neoplasms / Q000175:diagnosis*; D010950:Plasma Cells / Q000473:pathology; D012793:Sialadenitis / Q000175:diagnosis*; D014973:Xanthomatosis / Q000175:diagnosis*