[Merkel cell carcinoma of the head and neck].

Merkel cell carcinoma (MCC) is a skin cancer arising from neurosecretory cells which take part in APUD system. In most cases it is locally growing tumor with significant tendency to local recurrences after surgery. The authors have described four cases MCC localised on the skin of the middle angle of the eye, lower eyelid, auricle and cheek, without nodal metastases.

[Laryngeal radionecrosis].

Laryngeal radionecrosis is now an uncommon, late complication after radiotherapy. The authors presented the diagnostic difficulties with differeniation beetween radionecrosis and the recurrent cancer, as well as their own experience with the treatment. The material consisted of 6 cases with radionecrosis (Chandler grade IV) surgically treated during past 15 years.