European Journal of Biomedical and Pharmaceutical Sciences

FIRST METATARSAL CHONDROBLASTOMA

Ghaith Abou-Nouar MD*, Mohammad Alwan MD***, Omar Bashmaf MD***, Abdullah Alkhawaldah MD***

ABSTRACT

The author reports a case of first metatarsal chondroblastoma arising in the right first metatarsal bone in a 44-yearold female presented to our clinic at King Hussein Medical Center (KHMC) during June 2014. The patient was complaining of a 4 months long intolerable and progressive right foot pain associated with swelling over the dorsal and medial aspect of the forefoot. As accurate diagnosis is crucial in such case, investigations that included x-rays and magnetic resonance imaging (MRI) demonstrated an expansile and lytic lesion involving first metatarsal bone associated with intraosseous septations and sclerosis. The distal chondral and subchondral parts remained unaffected leading to the differential diagnosis of aggressive benign bone tumor which laid down the plan of an incisional biopsy to be reported histopathologically as a case of chondroblastoma after which excision of the entire metatarsal bone was performed and reconstructed with an autogenous fibula graft and K-wires fixation. In subsequent follow-ups satisfactory osteo-integration was being demonstrated upon radiological follow up leading to the removal of the K-wires after 10 weeks followed by the gradual return of the patient to her daily life routine.

Keywords: Chondroblastoma, first metatarsal.