Abstract
Inspection is an important technique for the diagnosis of laryngeal lesions because they are not palpable. It is very important for the laryngologists that we inquire the cases of laryngeal lesion with disagreement of macroscopic findings and histopathological findings. A 71-year-old man visited our hospital with chief complaint of hoarseness for 6 months. His Blinkman index was 2,000. Solitary mass like vocal cord nodule involved in each vocal cords. Telescopic examination showed that left lesion existed at the free edge and had irregular surface with white lesion, and right lesion existed at the slightly lower lip side and had relatively regular surface. These laryngeal lesions were suspected to be cancer for the left and reactive nodule for the right. However, laryngostroboscopy showed that no wavemotion and no vibration at the mass and the rear portion of bilateral vocal cords. Laryngomicrosurgery was performed and the results of histopathological examination was that right lesion was well differentiated squamous cell carcinoma and left lesion was carcinoma in situ. We report the review of this case at the point of pre-operative diagnosis.