Aims and objectives: To evaluate sinunasal diseases with the help of nasal endoscopy. To study efficacy of nasal endoscopy in diagnosing nasal pathology over clinical examination. To define medical and surgical functional endoscopic sinus surgery (FESS), management according to type of nasal pathology. To define applications of nasal endoscopy (biopsy, swab, epistaxis control, foreign body removal, rhinolith removal, follow-up). Materials and methods: Total 100 patients were studied. Patients came with complaints of nasal blocking, nasal discharge, mass in nasal cavity, bleeding etc, included in study. Pre-endoscopic assessment was carried out like history, examination, investigation. Endoscopic was done after consent under necessary anesthesia. Endoscopy was done using 0 and 30º endoscope with three standard passes. Result: Total 100 patients were studied. Male to female ratio was 1.8:1. Out of 100 patients maximum number of patients had chronic sinusitis on nasal endoscopy examination (22); followed by nasal polyp (27) and deviated nasal septum and epistaxis (10). Nasal endoscopy was an excellent diagnostic aid in condition like epistaxis, nasal mass, nasal obstruction, foreign body, nasopharyngeal tumor. Conclusion: Diagnostic nasal endoscopy offers high diagnostic accuracy in patient with sinonasal complaints. Diagnostic nasal endoscopy is gold standard tool in patient having sinonasal complaints. It has high accuracy due to vision control, has less bleeding, minimal complication, and early postoperative recovery. It is a good tool for diagnosing anatomical variation.

Pleomorphic adenoma, a heterogeneous mixture of epithelial and myoepithelial cells, commonly found in major salivary glands, accounts for about 3% of benign head and neck tumors. Intranasal pleomorphic adenoma (INPA) is an extremely rare variant forming a mere 8% of all pleomorphic adenomas. Majority of these arise from the nasal septum (82-90%) with only about 8% showing attachment to the lateral nasal wall. Various theories explaining etiopathological basis of INPA have been proposed but none explains its predominance in females in 3rd to 6th decade of life. Hallmark of histopathological picture of pleomorphic adenoma is epithelial tissue mixed with tissues of myxoid, chondroid or mucoid origin. But INPA shows predominantly epithelial component with scanty stroma. Considering its high cellularity and anatomical site, INPA is often misdiagnosed as unilateral nasal malignancy. Early diagnosis ensures complete excision and is paramount to make patient disease free, considering its high potential of recurrence. Hereby, we are presenting a case of giant pleomorphic adenoma of nasal cavity, arising from lateral nasal wall, causing erosion of the base of skull, with the intent of drawing attention to this rare diagnosis.

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