Glomus Tumor of the Index Finger: Multimodality Imaging in a Case Report

Glomus tumors are benign lesions developed at the neuro-myo-arterial glomus of the dermal-epidermal tissue and were first described in 1924 by Masson. This is a rare pathology, progressing very slowly, generally unrecognized, affecting young adults with a female predominance. These tumors are most commonly located in the fingers and represent 1-5% of soft tissue tumors of the hand. Imaging is important in the diagnosis and follow-up and mainly based on Doppler ultrasound and MRI. However, confirmation of the diagnosis needs a systematic anatomopathological analysis after surgical excision. We report the case of a 41-year-old woman, without any particular pathological history, who had a painful swelling of the distal index finger for 1 year. The diagnosis of glomus tumor was suggested by multimodal imaging, and surgical excision was performed to confirm the diagnosis.