Topography Mapping Patterns of Head and Neck Cancers, A Prospective and Cross-Sectional Study at Tertiary Care Centre at Nanded, India.

Abstract

International Classification of Diseases-Oncology 9(ICD-O) uses only a set of 4 characters for topography .Topography code remains same for all neoplasms of that site. Topography run from C00.0-C80.9.A decimal point (.) separates subdivisions of 3 character categories. Mapping patterns of head and neck cancers of 18 months prospective study are conducted at tertiary care centre of state government run medical college and hospital at Nanded, Maharashtra, India. where 378 patients were selected out of that 60 patients have been diagnosed and confirmed histopathologically as cancers, these cases were plotted as per topographic codes and the leading topographic site was upper aero digestive tract, followed by thyroid cancers, this was also a follow up study, this similar study was done 7 years back in the same institute where the results were more or less same except the emergence of thyroid gland cancers. In present study in addition to thyroid cancers very few miscellaneous leading sites are added which are salivary gland cancers, skin +subcutaneous cancers and lymphatic cancers, so the group of topographic sub sites known as aerodigestive tract is seen in present study and is reduced to 66.67% while in previous study it was about 100%.Presence of a group of topographic sub sites of aero digestive tract cancers is a common finding in all studies by using topography mapping.