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Case Report

Myositis Ossificans with Aneurysmal Bone Cystic Changes at the Thoracic Paraspinal Region: A Case Report

1
Department of Neurosurgery, Pusan National University Hospital, Biomedical Research Institute, Busan 49241, Korea
2
Department of Radiology, Pusan National University Hospital, Biomedical Research Institute, Busan 49241, Korea
3
Department of Pathology, Pusan National University Hospital, Biomedical Research Institute, Busan 49241, Korea
*
Author to whom correspondence should be addressed.
Medicina 2022, 58(10), 1452; https://doi.org/10.3390/medicina58101452
Submission received: 30 September 2022 / Revised: 12 October 2022 / Accepted: 13 October 2022 / Published: 14 October 2022
(This article belongs to the Special Issue Spinal Tumors)

Abstract

Myositis ossificans (MO) is a benign heterotopic bone formation in muscle or soft tissue. It is a self-limiting disease that is usually initiated by trauma and often occurs in the extremities of the body. Here we report a rare case of traumatic myositis ossificans caused by unusual trauma (extracorporeal shock wave therapy) at thoracic paraspinal muscles. After a needle biopsy, the lesion increased in size, and the patient’s symptoms worsened. Malignant soft tissue tumors such as osteosarcoma should be differentiated, so excision of the mass was performed. The final diagnosis was MO with aneurysmal bone cystic change. This case is a very rare form of MO that showed an unusual cause, location, clinical course, and pathologic result on follow-up. This can be an instructive case for radiologists as it is a common disease entity with unusual manifestations.
Keywords: myositis ossificans; paraspinal muscles; aneurysmal bone cyst myositis ossificans; paraspinal muscles; aneurysmal bone cyst

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MDPI and ACS Style

Han, I.H.; Song, Y.S.; Lee, I.S.; Kim, D.H.; Choi, K.U. Myositis Ossificans with Aneurysmal Bone Cystic Changes at the Thoracic Paraspinal Region: A Case Report. Medicina 2022, 58, 1452. https://doi.org/10.3390/medicina58101452

AMA Style

Han IH, Song YS, Lee IS, Kim DH, Choi KU. Myositis Ossificans with Aneurysmal Bone Cystic Changes at the Thoracic Paraspinal Region: A Case Report. Medicina. 2022; 58(10):1452. https://doi.org/10.3390/medicina58101452

Chicago/Turabian Style

Han, In Ho, You Seon Song, In Sook Lee, Dong Hwan Kim, and Kyung Un Choi. 2022. "Myositis Ossificans with Aneurysmal Bone Cystic Changes at the Thoracic Paraspinal Region: A Case Report" Medicina 58, no. 10: 1452. https://doi.org/10.3390/medicina58101452

APA Style

Han, I. H., Song, Y. S., Lee, I. S., Kim, D. H., & Choi, K. U. (2022). Myositis Ossificans with Aneurysmal Bone Cystic Changes at the Thoracic Paraspinal Region: A Case Report. Medicina, 58(10), 1452. https://doi.org/10.3390/medicina58101452

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