Presentation
Slow growing abdominal wall mass over 2 years.
Patient Data
Age: 30 years
Gender: Female
From the case:
Rectus abdominis desmoid tumor
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Large bilobed mass centered on the left rectus abdominis muscle.
Incidental left ovarian cyst.
Case Discussion
Pathology proven desmoid tumor of the rectus abdominis muscle.
Differential diagnosis would include desmoid, endometrioma (if cesarean section scar or port site), inflammatory pseudotumor, metastasis, lymphoma, polymyositis, abscess and hematoma. Given the size and history of slow growth in a young woman, desmoid is the most likely diagnosis. This was confirmed with percutaneous biopsy and surgically excised.
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