A 45-year-old man presented with a painful 1 cm round reddish papule on his right leg that had been present for 3 months. A biopsy showed a well-circumscribed dermal tumor consisting of sheets of pale cells with punched-out nuclei surrounding dilated vascular spaces, consistent with an extradigital glomus tumor. Extradigital glomus tumors are a subtype of glomus tumors that can develop in the dermis and subcutaneous tissue outside of the digits, and are typically excised for diagnosis and treatment.

1. Extradigital glomus
tumour
F. Peral Rubio, M.D.
Department of Dermatology
Hospital Universitario Virgen Macarena
Seville, Spain

2. Extradigital glomus
tumour
 A 45 -years-old men.
 The patient was referred to us for the
assessment of a painful lesion on the
right leg 3 months previously.
 Cutaneous examination revealed a
single round reddish papule of about 1
cm in size.

4. Extradigital glomus
tumour
 The excision biopsy showed stratified
squamous lining with well circumscribed tumor
in the dermis.
 The tumor consisted of sheets of uniform cells
with pale cytoplasm; round to ovoid centrally
placed punched out nuclei and well defined cell
margins. There were numerous dilated thin
walled vascular spaces surrounded by a layer
of tumor cells

5. Extradigital glomus tumour
 Extradigital glomus tumors are not a rare
subgroup of glomus tumors.
 Commonly found in the corium and
subcutaneous tissue, mostly in the subungual
region of the fingers.
 The characteristic symptoms of digital glomus
tumors are, pain, tenderness with palpation,
and hypersensitivity to cold.
 Excisional biopsy is usually necessary for the
diagnosis as well as the treatment.

6. Extradigital glomus
tumour
F. Peral Rubio, M.D.
Department of Dermatology
Hospital Universitario Virgen Macarena
Seville, Spain