Sureshkumar Reddy Bonthu1, Lokesh Reddy Chigicherla2, Venkatram Reddy Kuchukulla3, (Brig) Satyanarayana Moorthy4, Ramakrishna Reddy Gaddam5
PRESENTATION OF CASE Parosteal lipomas are rare lesions that truly arise in the periosteal membrane. Lipomas are the most common soft tissue lesions and surprisingly are among the rarest bone neoplasias. Osseous lipomas have been classified according to their site of origin either within bone (intraosseous) or on its surface (juxtacortical).1 Surface osseous lipomas are subdivided into parosteal and subperiosteal lipomas. Parosteal lipomas often induce a periosteal reaction. The most frequently affected sites are the diaphysis and metaphyseal2 regions of long bones. The parosteal type is a rare tumour accounting for 0.3% of all lipomas,3 usually asymptomatic and affecting mainly adults in fifth and sixth decade. They are known to be associated with underlying bony changes like focal cortical hyperostosis, pressure erosion of the underlying bone, bowing deformity and osteochondroma-like configuration.4
