An epiphyseal osteochondroma causing mechanical symptoms in the knee.

A case of an epiphyseal osteochondroma in the anteromedial aspect of left tibia in a 4 year old girl, who was presented with knocking between knees and limping. Surgical excision of this bony growth was curative and resolved the mechanical symptoms completely. Interesting clinical and imaging features are presented. The possibility of solitary epiphyseal osteochondroma should be kept in mind for any bony lesion close to the joint, especially in a young child. Early excision of the lesion is recommended to avoid intra-articular development and mechanical block to joint motion.