Intramuscular lipoma - brachialis muscle

Case contributed by Dr Mostafa El-Feky


Swelling of the arm, questionable ruptured biceps tendon.

Patient Data

Age: 65 years
Gender: Female

A well-defined (3.5 x 4.5 x 10.2 cm) focal lesion of the arm. It is intramuscular, occupying the distal part of the brachialis muscle. It displays T1 and T2 hyperintensity with a signal loss on fat-sat sequences (fat signal).

Normal size and signal of the rest of the muscles of the anterior and posterior arm compartments. Normal marrow signal of the humeral shaft. The neurovascular bundles are non-involved.

Case Discussion

MRI features of intramuscular lipoma.

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Case information

rID: 75025
Published: 14th Mar 2020
Last edited: 15th Mar 2020
Inclusion in quiz mode: Included
Institution: Dar El Ashaa Center

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