Radiological Characteristics and Management of Intramuscular Myxoma of the Temporal Muscle: Case Report

Abstract

The patient was a 51-year-old male with a 3-year history of a slow-growing, asymptomatic, subcutaneous mass in the left temporal region. Magnetic resonance imaging revealed a well-defined extracranial lesion with heterogeneous enhancement and without invasion of the skull. A variety of soft tissue tumors were included in the differential diagnosis. The patient underwent total resection of the tumor, and a diagnosis of intramuscular myxoma was confirmed histologically. There was no evidence of recurrence at 6-month follow-up. The present case is the first characterization of the radiological appearance of intramuscular myxoma in the temporal muscle. I emphasize that increased awareness of this rare lesion and a careful clinical and radiological preoperative assessment are crucial in determining an appropriate treatment strategy for patients with a soft tissue tumor of the head.

Intramuscular Myxoma of the Intrinsic Muscles of the Tongue: A Case Report with Literature Review

“…MRI was performed in 12 of 33 intramuscular myxomas in the head and neck region. Nine of these 12 cases showed low to intermediate signal intensity in T1-weighted images and high signal intensity in T2-weighted images [ 20 , 22 , 24 , 26 , 27 , 29 , 31 , 33 ]. In addition, internal septa were recognized in two large tumors [ 20 , 22 ].…”

Intramuscular myxoma of the longus colli mistaken for a cervical rootlet schwannoma

“…IMs are slow-growing, benign masses that typically affect large skeletal muscle groups such as the thigh, shoulder and buttock, and thus seldomly appear in the head and neck region 8. Fewer than 30 adult cases of head and neck IM have been documented in the literature, most commonly involving the muscles of mastication and cervical paraspinal muscles 9–13. Other reported locations of IM within the head and neck include the geniohyoid, hyoglossus, sternocleidomastoid and trapezius muscles 14–17.…”