An incidental finding of an asymptomatic intraneural glomus tumour: a case report and review of the literature

Abstract

Glomus tumours are rare, soft-tissue neoplasms arising from the thermoregulatory neuromyoarterial glomus bodies. They are commonly observed in the extremities and typically present with symptoms of cold hypersensitivity, pain and localised tenderness. Intraneural glomus tumours (INGT) are even rarer. Here we review the literature on INGT and present an unusual case of an asymptomatic, INGT, found incidentally within the excision specimen of a spiradenocarcinoma that arose near the natal cleft. Interestingly, this had not been identified on magnetic resonance imaging (MRI) used to investigate the spiradenocarcinoma. Although glomus tumours are usually considered benign, malignant transformation has been reported, highlighting the need for reporting pathologists and treating clinicians to be aware of this entity.