Eccrine angiomatous hamartoma: First case in the cytology literature

A 34-year-old male presented with a swelling on the volar surface of the third digit of his right hand. This swelling was associated with pain and erythema. Ultrasound-guided needle biopsy was performed. Cytologic and histologic preparations together confirmed the diagnosis of a rarely encountered mixed epithelial and mesenchymal proliferation, an eccrine angiomatous hamartoma. To our knowledge, this case is the first to illustrate the cytomorphologic features of this rare lesion. •Eccrine angiomatous hamartomas are rare dermal / subcutaneous tumors associated with diverse clinical presentations.•Knowledge of these rare lesions is important for accurate diagnoses.•This report is the first in the literature to illustrate cytomorphologic findings for this rare lesion.