In this study was considered 58 patients diagnosed of squamous cell carcinoma of larynx and operated between 1991 and 1996 at the Ear Nose and Throat Service of the University Hospital Complex of Santiago de Compostela. They are all men but one female and the biggest percentage were T2 (39.7%) and T3 (37.9%) tumours. The macroscopic characters such as the average diameter of the pieces was 6.91 cm and 2.66 cm of the tumour. The most usual tumoral shape encounter was exofitic and ulcerous. And between the microscopic characters we valued the histologic grade of differentiation and the most usual were the well (44.8%) and moderated (41.4%) differentiated. The average of mitosis was 20.6 and 31 tumours presented necrosis.