Cell pattern / cytology

Eccrine tumors

Differential diagnosis

Clear cells

Acrospiroma Syringomas poromas

1) Trichelemmoma

2) Metastatic renal cell carcinoma

3) Glomus tumor

4) Balloon cell melanoma

Basaloid cells

Poromas syringoma

1) Basal cell carcinoma

2) Tricho epithelioma

3) Seborrhoeic keratosis

Rosette like formation

Spiradenoma

1) Subcutaneous metastasis

2) Synovial sarcoma

Papillary fragments

Papillary eccrine tumors

Cutaneous endometriosis

Pleomorphic epithelial cells with glandular pattern

Sweat gland adenocarcinoma

Cutaneous metastases from the lungs, breast etc

Table 4: Cytological differential diagnosis of eccrine gland tumors.