Multifocal Unicameral Bone Cysts in a Middle-Aged Patient Treated with Three Different Methods: A Rare Case Report

Alireza  Manafi-Rasi; Ali Pourmojarab; Mirbahador Athari; Mohammadmahdi Omidian

doi:10.18502/jost.v8i2.9313

Alireza Manafi-Rasi Associate Professor, Department of Orthopedics and Traumatology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
Ali Pourmojarab Resident, Department of Orthopedics and Traumatology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
Mirbahador Athari Assistant Professor, Department of Orthopedics and Traumatology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
Mohammadmahdi Omidian Assistant Professor, Department of Orthopedics and Traumatology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran

DOI: https://doi.org/10.18502/jost.v8i2.9313

Keywords: Case Reports; Cysts; Bone Cysts

Abstract

Background: Primarily diagnosed in the first two decades of life, unicameral bone cysts (UBCs) are benign cystic lesions of the bone. More than 90% of UBCs are located in the proximal femur or proximal humerus of skeletally immature patients, however in this case report we report a middle-aged patient with multiple lesions in unusual sites.

Case Report: A 42-year-old patient presented to our institute with multiple bony lesions in the right and left tibias, proximal radius, ulna, and the second metacarpus. The lesions were later pathologically proven to be UBCs. A multimodality treatment approach was selected including decompression-only, extended curettage, bone grafting, and prophylactic fixation based on the lesion size and anatomic location. All these methods proved to be effective with no disease relapse and complete radiographic obliteration of the cavities.

Conclusion: UBCs could occur in much older patients than generally believed and the proper method of treatment should be individualized based on the lesion’s characteristics.