A rare benign parotid gland tumor: angiomyolipoma.
Angiomyolipomas are benign neoplasms composed of smooth muscle, vasculature, and mature adipose tissue, which most commonly occur in the kidney and located in the head and neck region. A very rare neoplasm, there are only 3 cases of angiomyolipoma in the parotid gland that have been reported to date. Here, we report a case of a 38-year-old man who had a slow-growing mass in the parotid gland for the past 7 years. The results of a physical examination revealed a rubbery mass that was 2.5 cm in diameter in the below superficial lobe of the left parotid gland. A computed tomographic scan showed a heterogeneous and lobulated nodule with a well-defined margin, which was resected through partial parotidectomy with preservation of the facial nerve. A histologic finding revealed an angiomyolipoma of the parotid gland. In conclusion, angiomyolipoma should be considered in the differential diagnosis of rubbery parotid gland masses.
From the Department of Otorhinolaryngology, Head and Neck Surgery, West China Hospital, Sichuan University, Sichuan, China.
Dan
D
Lu
Hui
H
Yang
Shi Xi
SX
Liu
Yu
Y
Zhao
Fei
F
Chen
D000235:Adenolymphoma / Q000175:diagnosis; D000328:Adult; D018207:Angiomyolipoma / Q000175:diagnosis* / Q000601:surgery; D044963:Biopsy, Fine-Needle / Q000379:methods; D003937:Diagnosis, Differential; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D010307:Parotid Neoplasms / Q000175:diagnosis* / Q000601:surgery; D014057:Tomography, X-Ray Computed / Q000379:methods