Osseous Metaplasia in Adenocarcinoma ED13-ED15
Dr. Phiza Aggarwal,
Assistant Professor, Department of Pathology, Level-3, Block-E, Government College and Hospital, Sector-32, Chandigarh, UT, India.
Osseous Metaplasia (OM) or heterotopic ossification is a rare phenomenon with unknown aetiology that is characterised by the formation of mature bone elements in the stroma of different tumours. Awareness of this condition is important to avoid diagnostic confusion with carcinosarcoma and local bone invasions that have different lines of treatment and prognosis. Here, authors report two cases of heterotopic ossification in adenocarcinoma of sigmoid colon and lung and provide salient features that could help to detect the condition.