A case report of mesenteric heterotopic ossification: Histopathologic and genetic findings

Mesenteric heterotopic ossification (MHO) is very rare and occurs in mid- to late-adulthood, usually in the context of prior abdominal surgery. The mechanisms of MHO are unknown. Here we describe the case of a 72-year-old man with MHO. Standard histological staining revealed that MHO occurred through an endochondral process. By comparison to known mutations in genetic conditions of HO such as fibrodysplasia ossificans progressiva (FOP) and progressive osseous heteroplasia (POH), DNA sequencing analysis demonstrated the presence of a commonly occurring heterozygous synonymous polymorphism (c.690G>A; E230E) in the causative gene for FOP (ACVR1/ALK2).

Source: Bone - January 7, 2018 Category: Orthopaedics Authors: Matthew Amalfitano, Billie Fyfe, Sumi V. Thomas, Kevin P. Egan, Meiqi Xu, Andrew G. Smith, Frederick S. Kaplan, Eileen M. Shore, Robert J. Pignolo Tags: Review Article Source Type: research