Pleomorphic Hyalinizing Angietactic Tumors: Recognizing a Novel Source of Cancer in the Upper Extremity

A 60-year-old truck driver, right-handed, presented with a non-traumatic slow-growing mass on the palm of his left hand. He reported that the mass appeared 3 years prior to consultation, but he failed to seek a medical advice because it did not bother him. The mass slowly grew and started to become painful on palpation. He was referred for excisional biopsy by his family physician because the mass demonstrated signs of inflammation and was extremely painful. Upon presentation, he did not complain of any other symptoms, including fever or signs of systemic illness. On history, he denied smoking, medication use, allergies or a family history of tumors.