Unique finding of intravascular papillary endothelial hyperplasia in the foot: A case report

Intravascular papillary endothelial hyperplasia (IPEH), also known as a Masson’s tumor, is a benign soft tissue mass secondary to reactive endothelial cells induced by inflammation and thrombosis. The diagnosis of IPEH cannot be achieved by clinical evaluation or imaging modalities alone as it mimics benign and malignant tumors. In order to get a definitive diagnosis and rule out other pathologies, surgical resection and histopathology are necessary. Our case report highlights a patient who developed a lesion after increasing activity initially diagnosed as a ganglion cyst. After ultrasound and MRI findings, surgical resection was recommended to rule out malignancy. Histopathology concluded the diagnosis of IPEH demonstrating the importance of surgical excision for a definitive diagnosis along with the mixed clinical and imaging presentation faced for this type of pathology.