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These guidelines are intended to facilitate the dissection and reporting of those tumours of the larynx, hypopharynx, and piriform fossa that may be treated by laryngectomy. The guidelines incorporate the core data for histopathology reports on head and neck carcinomas previously published by the Royal College of Pathologists1 which indicate the information required, in addition to clinical data, for the consistent management of these diseases and to give patients as accurate a prognosis as possible.
The optimal reporting of specimens from the head and neck area requires a partnership between the pathologist and surgeon/oncologist. The surgeon can help the pathologist by the appropriate handling and labelling of the specimen in the operating theatre. The discussion of cases at clinicopathological meetings, and correlation with preoperative imaging studies, are important in maintaining and developing this partnership.
The larynx is a difficult specimen to dissect owing to its complicated anatomy and to the mixture of soft and calcified tissues that are present. A careful, methodical approach is required to provide an accurate record of the extent of spread of laryngeal neoplasms. The pathologist needs to understand the normal anatomy of the larynx, the types of operation performed by surgeons for laryngeal cancer, and the nature of the information required by surgeons for patient management and audit.
Normal anatomy of the larynx and hypopharynx
The skeleton of the larynx is formed by a group of cartilages that are connected by ligaments and fibrous membranes and moved by intrinsic and extrinsic muscles. The cricoid cartilage forms a complete ring around the airway with a narrow anterior arch and a broader, flatter posterior lamina that forms most of the posterior wall of the larynx. The cricoid cartilage articulates with the inferior horns of the thyroid cartilage which is formed by two quadrilateral laminae that are fused in the anterior, median plane at …