Nasal Chondromesenchymal Hamartoma: A Rare Case Report

Nasal chondromesenchymal hamartoma, is an extremely rare primary benign cartilaginous tumor. Very few cases have been reported in the literature till date. A 9 months old male child presented with difficulty in breathing and nasal obstruction since 7 months. On clinical examination, a smooth well cirumscribed mass was seen completely occupying the left nasal cavity. Ophthalmological examination was normal. On CECT PNS, a large expansile non-enhancing soft tissue density lesion measuring 41x25x30mm (APxTRxCC) with multiple coarse calcifications within was seen occupying the left nasal cavity. The lesion was causing severe bowing of the nasal septum and the cribriform plate appeared to be eroded at few places. The lesion was also causing remodelling and destruction of the adjacent bones. MRI PNS (Plain+Contrast) revealed an ovoid encapsulated mass occupying the left nasal cavity. It showed homogenous high signal on T2 weighted images. Few T2 hypointensities were noted within it suggestive of calcifications. No evidence of intra-oral, intra-orbital or intra-cranial extension of the lesion was noted. A biopsy from the mass sent for histopathology examination revealed lobules of mature cartilage along with fibromyxoid stroma infiltrating into the surrounding tissue. Few of the bits were lined ny ciliated pseudostratified columnar epithelium. Complete excision of the tumor was obtained. Two months post surgery, patient is healthy without any complaints.