Myoepithelioma of the lateral abdominal wall: A case report

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Rationale:Soft-tissue myoepithelioma is a rare neoplasm. It usually occurs in the distal or proximal extremities, but seldomly arises in the abdominal wall.Presenting concerns of the patient:The patient is a 40-year-old woman who presented with a painless mass at the lateral abdominal wall for 6 months. Computed tomography scan revealed a lobulated and well-defined iso-density mass showing heterogeneously moderate enhancement. The mass exhibited intermediate T1 signal and obvious high T2 signal on magnetic resonance imaging.Interventions:The tumor was excised. Hematoxylin–eosin stain and immunohistochemical stain showed that the tumor was myoepithelioma.Outcomes:The patient did not undergo chemotherapy and radiotherapy. No recurrence or metastasis was noted during the 1 year follow-up.Lessons:Radiologists should consider myoepithelioma in the differential diagnosis when finding a tumor in the abdominal wall.

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