title: Sebaceous lymphadenoma identified by fine needle aspiration biopsy: a case report.
abstract: BACKGROUND
  Sebaceous lymphadenoma of the parotid gland is a rare benign neoplasm. This is the first reported case of fine needle aspiration biopsy (FNAB) findings for sebaceous lymphadenoma of the parotid gland.
  
  
  METHODS
  A 60-year-old male presented with painless, bilateral parotid swelling noted for 5 months. The swelling was more pronounced on the right. Examination revealed bilaterally prominent parotid glands with diffuse firmness but no discrete masses. There was no evidence of facial nerve dysfunction. Laboratory evaluation was negative for infectious and autoimmune etiologies. Magnetic resonance imaging revealed bilateral cystic parotid masses. FNAB of the right parotid was obtained to assist with preoperative counseling. It revealed lymphoid and salivary gland parenchymal cells. The patient underwent a right superficial parotidectomy. The surgical specimen of the parotid mass confirmed the diagnosis of sebaceous lymphadenoma on the tissue section. The contralateral parotid mass had not been excised at this writing.
  
  
  CONCLUSIONS
  This report is the first to describe the FNAB findings of the unusual benign parotid neoplasm sebaceous lymphadenoma. Though the definitive diagnosis of any parotid mass requires tissue, generally obtained via parotidectomy, an FNAB diagnosis can be useful in counseling a patient prior to definitive biopsy.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Loyola University Medical Center, Maywood, Illinois 60153, USA.
authors.forename: James
authors.initials: J
authors.lastname: Banich
authors.forename: Cesar V
authors.initials: CV
authors.lastname: Reyes
authors.forename: Carol
authors.initials: C
authors.lastname: Bier-Laning
mesh_terms: D000235:Adenolymphoma / Q000473:pathology* / Q000503:physiopathology / Q000601:surgery; D044963:Biopsy, Fine-Needle; D003937:Diagnosis, Differential; D013505:Digestive System Surgical Procedures; D020220:Facial Nerve Injuries / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010306:Parotid Gland / Q000473:pathology* / Q000503:physiopathology / Q000601:surgery; D010307:Parotid Neoplasms / Q000473:pathology* / Q000503:physiopathology / Q000601:surgery; D011183:Postoperative Complications / Q000209:etiology / Q000503:physiopathology; D012626:Sebaceous Gland Neoplasms / Q000473:pathology* / Q000503:physiopathology / Q000601:surgery; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome