Masticatory muscle hypertrophy
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Painless palpable mass in the left temporal region.
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Hypertrophy of the left temporalis and masseter muscles is noted.
Masticatory muscle hypertrophy is a rare benign entity, giving the "pseudomass" appearance in the buccal and temporal region. Unilateral involvement is even rarer. It is usually managed conservatively, unless the patient prefers surgical intervention due to cosmetic or psychological reasons.