Chondrolipoma of the popliteal fossa and Japanese reports.

A rare case of chondrolipoma of the right popliteal fossa in a 24-year-old female was reported with review of the Japanese published work. Eleven patients with chondrolipoma including lipoma with cartilaginous metaplasia, including my case, have been reported in Japan. The patients ranged in age from 7-79 years. All cases occurred in adults except for one. Six patients were male and five were female. Two lesions each arose on the tongue, upper back and popliteal fossa, and one each on the buccal submucosa, shoulder, breast, lateral chest and sole. The duration of the lesions ranged from 1 month to 20 years. The lesions ranged 1-10 cm in greatest dimension. The presented tumor was an early one because of the shortest duration and the smallest size in Japan. Recent criteria for a benign mesenchymoma including a chondrolipoma were also described.