Traumatic myositis ossificans of the superior belly of the omohyoid

Abstract

The first case of traumatic myositis ossificans (TMO) involving a strap muscle of the neck is reported. TMO typically presents with an unresolved mass following trauma or surgery, requiring differentiation from other soft tissue and bone neoplasms. Opacification may be present on soft tissue X-rays. Computed tomography (CT) scan may demonstrate a characteristic zoning phenomenon to establish the diagnosis. The disorder is frequently self-limiting but surgery may be required for persistent symptoms.

Benign calcified mass in tongue

“…Local injury to periosteum, with displacement of osteoblasts into adjacent soft tissues, can also initiate a calcification process 2 . Others theorize that osteoprogenitor cells can already be in the soft tissues, through embryonic malformation, and be triggered by various factors such as trauma, aging, or metabolic or as yet undetermined causes (idiopathic) 2–5 . Myositis ossificans, as per this theory, is unlikely in our patient as the diagnosis requires that the lesion have no attachment to another bone.…”

Myositis ossificans traumatica of the mylohyoid musculature

“…MOT, following maxillofacial and otolaryngological surgical procedures, has been reported. In many cases, the lesions are detected as abnormal calcification in radiographs obtained at the time of postoperative follow‐up. MOT involving the mylohyoid muscle has not been reported previously.…”

An Unusual Finding of the Hyoid Bone

“…A review of the literature yielded a single case report on traumatic myositis ossificans in the superior belly of the omohyoid. In this case, the ossification was unilateral, palpable on physical examination, and clearly visible on radiographs [ 8 ].…”