title: Clinico-pathological Study of Space Occupying Lesions of Nasal Cavity, Paranasal Sinuses and Nasopharynx.
abstract: BACKGROUND
  A variety of non-neoplastic and neoplastic lesions of nasal cavity, paranasal sinuses and nasopharynx are commonly encountered in clinical practice. The aim of this study was to study clinical and histopathological profile of space occupying lesions of nasal cavity, paranasal sinuses and nasopharynx in a tertiary care hospital of Rajasthan over the period of January 2013 to January 2014.
  
  
  METHODS
  This was a prospective study of 147 cases (male 100, female 47; age group ranging from less than 1 y to 76 y) of space occupying lesions of nasal cavity, paranasal sinuses and nasopharynx over the period of 12 months (from January 2013 to January 2014). All tissues after fixation in 10% buffered formalin, processed and then stained with Hematoxylin & Eosin to study various histopathological patterns.
  
  
  RESULTS
  These 147 cases were broadly categorized in two categories, one category as nasal and paranasal sinus masses and the other as nasopharyngeal masses with 91 and 56 cases, respectively. These lesions were common in second and third decades of life with male predominance. Among nasal and paranasal sinus masses, there were 67 (73.6%) non-neoplastic and 24 (26.4%) neoplastic lesions. Inflammatory polyps (89.5%) were the most common among the non-neoplastic masses; Inverted papilloma (45.46%) the most common among the benign neoplastic and squamous cell carcinoma (46.15%) was the commonest out of all malignant masses. Out of 56 nasopharyngeal masses, there were 53 (94.6%) non neoplastic and 3 (5.4%) neoplastic lesions. Majority of these i.e. 52 cases were of adenotonsillar hypertrophy.
  
  
  CONCLUSIONS
  We concluded that complete clinical, radiological and histopathological correlation helps us to categorize these sinonasal lesions into various non-neoplastic and neoplastic types. But final histopathological examination provides a confirmatory diagnosis, although Immunohistochemistry is the final diagnostic method in few cases.
authors.affiliation: Postgraduate Student, Department of Pathology, Sawai Man Singh Medical College and Hospital , Jaipur, India .
authors.forename: Dinesh
authors.initials: D
authors.lastname: Garg
authors.affiliation: Professor, Department of Pathology, Sawai Man Singh Medical College and Hospital , Jaipur, India .
authors.forename: Kusum
authors.initials: K
authors.lastname: Mathur
keywords: Histopathological; Nasal and paranasal masses; Nasopharyngeal masses; Neoplastic; Non-neoplastic