Bilateral masseter and temporalis muscles hypertrophy

Case contributed by Dr Heba Abdelmonem


Left facial swelling. Suspected parotid lesion.

Patient Data

Age: 55-60 years
Gender: Male

Bilateral symmetrical hypertrophy of both masseter and temporalis muscles. Normal CT density of both parotid glands.

Case Discussion

Hypertrophy of the masseter and temporalis muscles is a relatively rare condition characterized by benign enlargement of the muscles either on one or both sides. It is most commonly seen in late adolescence and early adulthood and present with pseudo mass formation. 

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Case information

rID: 66560
Published: 25th Feb 2019
Last edited: 25th Feb 2019
System: Head & Neck
Inclusion in quiz mode: Included
Institution: Zagazig University Hospital

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