title: Cystic parathyroid adenoma with coexistent sarcoid granulomas.
abstract: A 55-year-old woman with sarcoidosis developed hyperparathyroidism that was associated with fluctuating serum calcium levels. Ultrasonography and a computed tomography (CT) scan of the neck demonstrated a cystic lesion in the lower posterior area of the left thyroid lobe. Histological examination after subsequent surgery revealed sarcoid granulomas within a parathyroid adenoma. The pathogenesis of this rare association is discussed.
mesh_terms: D000236:Adenoma / Q000150:complications* / Q000473:pathology; D005260:Female; D006099:Granuloma / Q000150:complications* / Q000473:pathology; D006801:Humans; D008875:Middle Aged; D010279:Parathyroid Diseases / Q000150:complications*; D010280:Parathyroid Glands / Q000473:pathology*; D010282:Parathyroid Neoplasms / Q000150:complications* / Q000473:pathology; D012507:Sarcoidosis / Q000150:complications* / Q000473:pathology