Abstract

Nasal chondromesenchymal hamartoma is a distinctive mixed mesenchymal lesion of sinonasal region with a complex histologic appearance and benign clinical course and clinicopathologically similar to those of the mesenchymal hamartoma of the chest wall of infancy. We report a case of nasal chondromesenchymal hamartoma occurred in the right nasal cavity in a 3-month-old female. She was admitted with a history of profuse nasal bleeding and obstruction. CT revealed complex solid and cystic mass, measuring 3.5x2.5x2.5 cm in dimensions which filled the right nasal cavity and extended into ethmoid sinus and cribriform plate. The received piecemeal fragments of tissue were brown tan-colored firm semitranslucent tissue with a cartilaginous appearance. Microscopically, the basic morphologic elements were irregular islands of hyaline cartilage and myxoid to spindle cell stroma with various cellularity.

• Keywords: Nasal cavity;Hamartoma;Mesenchymal hamartoma