Intramuscular Sinusoidal Hemangioma of the Masseter Muscle with Organizing Thrombus Preoperatively Mimicking Coincidental Parotid Sialolithiasis

Korean Journal of Head & Neck Oncology 2017;33(1):79-83.
Published online May 30, 2017.

Young Wook Seo;Seung Ho Shin;Ja Yeong Seo;Hyung Kwon Byeon

이하선 타석증 병발로 오인된 교근 내 혈관종 1예

서영욱;신승호;서자영;변형권

Abstract

Hemangioma is the most common benign tumor in neonatal and infant stage. In the head and neck region, the lesion mostly occurs in the masseter, trapezoidal or sternocleidomastoid muscle. Due to its rarity and non-specific symptoms, it is difficult to diagnose precisely. Intramuscular hemangioma can be misdiagnosed as sialolithiasis of the parotid gland. There are several treatment options for hemangiomas such as sclerotherapy, radiotherapy, embolization, and surgery. Of all these, definitive surgical resection is considered most effective in preventing future recurrence. Here we report a case of intramuscular hemangioma that was detected in the patient’s right masseter muscle which was initially misdiagnosed as parotid sialolithiasis and was consequently managed with surgical resection.

Key Words: Masson씨 병변, Intramuscular hemangioma, masseter muscle, masson’s lesion