Two Cases of Intramuscular Hemangiomas in the Upper Limbs: From Sonography to Pathology

Intramuscular hemangiomas are benign soft tissue tumors that are rarely found in the upper limbs. Diagnosing these tumors may be challenging due to their pertinent nonspecific symptoms - often leading to misdiagnoses like tendinitis or muscle strain. In this paper, we present two cases of intramuscular hemangiomas - one in flexor pollicis brevis muscle and the other one in flexor digitorum superficialis muscle. Both subjects had nonspecific clinical symptoms whereby ultrasound imaging led to prompt diagnosis. To this end, we strongly advocate sonographic examination as an extension of physical examination in the daily clinical practice of musculoskeletal physicians.