Case Report: Unusual Heterotopic Ossification of the Hindfoot

Frontiers in Surgery

article

Falcioni Danya¹  Baldini Marco²  Coppa Valentino¹  Marinelli Mario¹  Gigante Antonio Pompilio² 

[1] Clinic of Adult and Paediatric Orthopedic, Azienda Ospedaliero-Universitaria;Clinical Orthopedics, Department of Clinical and Molecular Science, School of Medicine, Università Politecnica delle Marche

关键词: heterotopic ossification;    bone;    foot;    case report;    children;   

DOI  :  10.3389/fsurg.2022.917560

学科分类：社会科学、人文和艺术（综合）

来源: Frontiers

【 摘 要 】

Heterotopic ossification (HO) is a pathologic condition in which aberrant lamellar bone deposits in soft tissues, outside of the normal skeleton. Pathogenesis is still unclear, but different risk factors are known. Here we report a case of a 14 year-old girl presenting with pain in the medial calcaneal region and evidence of a rapidly growing, firm and solid neoformation. The lesion was diagnosed 6 years earlier, but it was consistently smaller and asymptomatic so that the patient did not undergo any follow up. The patient had no previous trauma or surgery, no other risk factors for HO and did not show any clinically evident HO in other districts. Xray and CT showed a heterogeneous bony lesion in the context of soft tissues, isolated from the calcaneus. After complete excision, histological analysis confirmed the diagnosis of HO. In conclusion, lone non congenital HO can occur regardless of known risk factors. Small HO lesion may also enter a proliferative phase without evidence of triggering events. More studies are required to better understand etiopathogenesis of HO in these clinical settings.

【 授权许可】

CC BY