Histopathological Spectrum Of Polypoidal Lesions Of Nasal & Para-Nasal Sinuses

ABSTRACT

The nasal cavity, para-nasal sinuses and nasopharynx form a functional unity that is reflected in the communality of the pathologic processes that involve the region. This is particularly the case for the first two components, which are often grouped under the term sinonasal. The two main types of epithelia lining these structures are stratified squamous and respiratory type pseudo-stratified columnar1. A wide array of neoplastic and non-neoplastic conditions present as a mass lesion2. Nasal polyps are polypoidal masses arising from mucus membranes of nose and para-nasal sinuses and are one of the most commonly encountered lesions in clinical practice3. The formation of nasal polyps is associated with recurrent attacks of rhinitis. They are focal protrusions of the mucosa which may reach 3-4 centimetres in length4. They are often bilateral and multiple, which lead to visible broadening of nose. These lesions affect males predominantly in 31 ratio1. Histopathological analysis helps to distinguish the nature of these lesions and thereby its management and prognostication.