Which of the following is not true about inveed papilloma ?

Ans. is 'd' i.e., It is also called Ringez tumor Inveed Papilloma (Transitional cell papilloma / Schneiderion papilloma) Inveed papilloma is a benign neoplasm occurs mostly between 40-70 years with male preponderance (5 : 1). o It arises from the lateral wall of nose and is always unilateral. Rarely, it may arise from nasal septum. o Features of inveed papilloma are :- It shows finger like epithelial invasions into the underlying stroma of the epithelium rather than on surface so called inveed papilloma. It is usually unilateral and is a locally aggressive tumour. Patients complain of nasal obstruction, rhinorrhea & unilateral epistaxis. In 10-15% cases there may be associated squamous cell carcinoma. Treatment is adequate local excision. If it arises in maxillary sinus, then a radical antrostomy is carried out.If it arises in the ethmoidal sinus, an external ethmoidectomy is done. If it arises from nose, treatment is wide surgical excision by lateral rhinotomy. Has a tendency to recur even after removal.