A rare encounter with primary cutaneous mucinous carcinoma on cytology

Primary cutaneous mucinous carcinoma is a rare adnexal neoplasm of eccrine origin. Most of the cutaneous mucinous carcinomas are metastatic, commonly from gastrointestinal tract and breast. Primary cutaneous mucinous carcinoma was first described in 1952. Only about 200 cases are reported in literature till date. Only a couple of case reports describing the cytological features are available. We report a case of a 70 years old male presenting with nodular lesion on cheek, which was cytologically diagnosed as mucinous neoplasm and later on confirmed on histology and histochemistry to be primary cutaneous mucinous carcinoma. A thorough radiological and clinical workup to rule out the possibility of metastatic deposit of mucinous carcinoma was done.