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Angiomyoma presenting as a painful subcutaneous mass: a diagnostic challenge
  1. Sandeep Kumar1,
  2. Roumina Hasan2,
  3. Satish Babu Maddukuri1,
  4. Mary Mathew3
  1. 1Department of Radiodiagnosis, Kasturba Medical College, Manipal, Karnataka, India
  2. 2Department of Pathology, Melaka Manipal Medical College, Manipal, Karnataka, India
  3. 3Department of Pathology, Kasturba Medical College, Manipal, Karnataka, India
  1. Correspondence to Dr Sandeep Kumar, drsandeepkumarradiologist{at}


Angiomyoma of the extremity is a notoriously elusive preoperative diagnosis, as the list of differentials for its described classic clinical features of a painful mobile subcutaneous mass is quite vast. Imaging features described for angiomyomas are far from being specific. On ultrasound, angiomyomas are mostly described as a well-defined solid mass lesion showing robust internal vascularity. On T2-weighted MRI they have been described as homogenous to heterogeneously hyperintense relative to skeletal muscle. We report a pathologically proven angiomyoma around the knee joint in a middle aged man, describe its clinical and imaging features, and outlay an approach in diagnosing this rare entity as a differential for painful subcutaneous mass lesions.

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