Congenital myofibroma of the hand

A term newborn presented with a red-violaceous mass on the left hand encompassing the thenar eminence (figure 1). Ultrasonography showed a solid, slightly vascularised lesion involving the first metacarpal. MRI showed a solid, hypovascular mass with an area of necrosis infiltrating and involving the first metacarpal (figure 2A). A biopsy of the lesion was performed, which confirmed that it was a benign mesenchymal tumour compatible with myofibroma. A watchful waiting attitude with annual MRI controls was indicated, and the lesion involuted remarkably during the following years until it practically disappeared, with residual fibrous tissue remaining (figure 2B). The patient has now an adequate hand function and has not presented any recurrence. Congenital infantile myofibromas are benign tumours, common in childhood. The great majority of them are present at birth. They can be solitary, multifocal or generalised. The most common locations are the orbit,...

Source: Archives of Disease in Childhood - Fetal and Neonatal Edition - June 19, 2023 Category: Perinatology & Neonatology Authors: Arredondo Montero, J., Bronte Anaut, M., Garcia Mata, S. Tags: Images in neonatal medicine Source Type: research