Fine needle aspiration of eccrine spiradenoma: a case report

Eccrine spiradenoma is an uncommon benign tumor of sweat glands. The clinical presentation in majority of cases is as solitary painful dermal nodule less than 5 cm in diameter, with equal incidence in both sexes. The nodule develops most usually on head, neck and dorsal aspect of the trunk and is many times recurrent. Malignant transformation is rare. Differential diagnosis includes other sweat gland tumours, sebaceous cysts and various benign subcutaneous connective tissue disorders. Exact diagnosis and radical surgical excision can avoid recurrence. We here report a case of eccrine spiradenoma, clinically diagnosed as cervical lymphadenitis and stress the importance of role of fine needle aspiration cytology in its diagnosis along with documentation of the cytological diagnostic criteria of the same.