Nasal Condromesenchymal Hamartoma- A Diagnostic Dilemma

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Nasal chondromesenchymal hamartoma (NCH) is a very rare and benign tumor of sinonasal tract and usually presents in infants and young children with varied symptoms depending upon the site of tumor in nasal cavity or paranasal sinuses. Here we present a case of 12 years old female who presented with on and off nasal obstruction for 1 year. On the basis of clinical and radiological findings she was diagnosed as a case of ethmochoanal polyp but radiological findings also showed bony thinning because of which malignancy could not be ruled out. But surprisingly her histopathological findings were in favour of chondromesenchymal hamartoma which was confirmed by vimentin and S100 positivity.