Surface lesions of the bones of the hand

Abstract

Surface lesions involving the bones of the hand are uncommon. This pictorial review illustrates the spectrum of conditions including benign primary bone tumours, malignant primary bone tumours and non-neoplastic disorders. The review focuses on the radiographic appearances of these lesions and other techniques such as CT and MR imaging that may suggest a specific diagnosis.

Tumours and Tumour-Like Lesions of Bone

“…Subperiosteal ABCs are eccentrically located and tend to involve the metaphysis or metadiaphysis. These lesions grow outside the confine of normal bone but are limited externally by periosteum and internally by endosteum (James and Davies 2006). Only two cases of subperiosteal ABC have been reported in the hand, one in a metacarpal and the other in a phalanx ( Fig.…”

Bone Tumors of the Hands: Focus on CT and MR Findings

“…Solitary osteochondromas are usually found in children and adolescents. About 4% of solitary osteochondromas involve the hands, most frequently the proximal phalanges [13,14]. Osteochondroma results from the separation of a fragment of the epiphyseal growth plate cartilage, which subsequently herniates through the periosteal bone cuff that normally surrounds the growth plate.…”

“…Radiographically, bizarre parosteal osteochondromatous proliferation appears a well-defined, calcified, or ossified solid mass continuous with the underlying cortex, usually metaphysis. The size of lesion can range from 0.5 to 3.0cm [13]. The absence of continuity with the medullar and lack of orientation away from the nearby physis are the differential features of bizarre parosteal osteochondromatous proliferation from osteochondroma.…”

“…CT and MR are useful in identifying the relationship of the osseous mass to the underlying cortex. The lesion is seen as a heterogeneous low signal intense mass on T1-weighted MR image with high signal intensity on T2-weighted image (Figure 13) [13]. Recommended treatment for bizarre parosteal osteochondromatous proliferation is surgical excision.…”

An assessment of the incidence and significance of pes anserine exostoses

“…This helps differentiate osteochondroma from the other forms of exostosis as well as diverse boneforming surface lesions such as osteoma, bizarre parosteal osteochondromatous proliferation, periostitis ossificans, and parosteal osteosarcoma. [1][2][3] There is, however, one exception where there is also continuity of marrow and cortex between the bony outgrowth and the parent bone. This is the pes anserine exostosis.…”