title: Merkel cell carcinoma: a rare presentation.
abstract: A 33-year-old man presented with a lump at the right side of chest wall of 4 months duration which started bleeding suddenly from an ulcer at its center. Examination revealed a globular ulcerated mass 2 cm in diameter, on the anterior axillary fold, with adherent clot at its center. No regional lymphadenopathy was noted. Wide local excision with 2 cm margin was done. Biopsy report revealed malignant small round-cell tumor. Immunohistochemistry showed it to be cytokeratin-20-positive and S100-negative, suggesting the diagnosis of Merkel cell carcinoma. The patient did not receive any other adjuvant therapy. He is being followed-up for the last 4 years and has shown no features of recurrence so far.
authors.affiliation: Department of Surgery, I.P.G.M.E. and R/S.S.K.M Hospital, Kolkata, West Bengal, India.
authors.forename: Prosanta Kumar
authors.initials: PK
authors.lastname: Bhattacharjee
authors.forename: Shyamal Kumar
authors.initials: SK
authors.lastname: Halder
authors.forename: Rajendra Prashad
authors.initials: RP
authors.lastname: Ray
mesh_terms: D000328:Adult; D015266:Carcinoma, Merkel Cell / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery