Pectoralis major tear
Acute forceful movement during Gym. Suspected left pectoralis major rupture on clinical examination.
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Ill-definition of the outer fibers and insertion of the sternal head of left pectoralis major muscle with fibers matrix gap (2.8 x 3 mm) and intramuscular edema. Myofascial fluid and intramuscular fluid are seen. Intact left clavicular and abdominal heads.
Unremarkable right pectoralis major muscle. Normal marrow signal of the examined bony framework. Normal size and signal of the rest of the surrounding muscles. Respected neurovascular bundle.
The case illustrates a pectoralis major sternal head tear as well as humeral insertion. It is an uncommon injury, often occurring during a forceful activity such as bench press. Early diagnosis via MRI and surgical repair is important to ensure a sound recovery.