We present here the case of a 65 year-old male with an adenosquamous carcinoma originating in the larynx. The patient had complained of pain in the pharynx for three months prior to his visit. At the time of the initial examination, a dark-red tumor as large as the distal phalanx of the fifth metacarpal, with a smooth surface and a clear border could be observed between the right false vocal cord and the right arytenoid region. The tumor was removed by laryngeal microdissection, and the patient was diagnosed histopathologically as having adenosquamous carcinoma. As a result, a tracheostomy and vertical partial laryngectomy were performed, since no neoplastic cells were detected in the resection stump of the tumor following surgery, the patient was followed on an outpatient basis. However, the tumor metastasized to the right cervical lymph nodes approximately four months after the surgery, and therefore a right radical neck dissection was performed. The excised tumor was diagnosed histologically as being a poorly differentiated adenocarcinoma. Except for a metastasized tumor in the right superior deep cervical lymph node, no other remarkable findings were detected. As an adjunctive treatment, chemotherapy (2 cycles of CAP therapy) was performed. At present (four months after surgery), the tumor has not recurred.
