Bizarre Parosteal Osteochondromatous Proliferation

Fig. 61.1

Bizarre parosteal osteocartilaginous proliferation (BPOP). Radiographic and macroscopic features. (a) Bone and cartilaginous lesion of the metacarpal bone. (b) Well-circumscribed osteocartilaginous nodule

Fig. 61.2

Bizarre parosteal osteocartilaginous proliferation. Plain film, anteroposterior view of the fifth metacarpal bone shows a uniform mineralized well circumscribed lesion in the bone surface

Fig. 61.3

(a) Bizarre parosteal osteocartilaginous proliferation of the middle phalanx (arrow) clearly shows the parosteal location in this radiograph. (b) MRI of same lesion