Non‐traumatic myositis ossificans circumscripta in the anterior abdominal wall of a seven‐year‐old Ugandan child: A case report

Myositis ossificans circumscripta (MOC) is a benign and self‐limiting heterotopic ossification in the subcutaneous fat, tendons, muscles, and nerves. It is commonly due to trauma and is frequently encountered in the arm, shoulder, thigh, and hand which are prone to trauma. Non‐traumatic MOC arising...

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Bibliographic Details
Published in:Clinical case reports 2022-07, Vol.10 (7), p.e6145-n/a
Main Authors: Isse, Hamdi Mohamed, Sereke, Senai Goitom, Vincent, Mboizi, Zeridah, Muyinda
Format: Article
Language:English
Subjects:
Abdomen
Calcification
Case Report
Case reports
computed tomography scan
Consent
Histology
Inflammatory diseases
Lymphatic system
Magnetic resonance imaging
Musculoskeletal diseases
myositis ossificans circumscripta
Patients
Sarcoma
Tomography
Trauma
Tumors
Ultrasonic imaging
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Summary:Myositis ossificans circumscripta (MOC) is a benign and self‐limiting heterotopic ossification in the subcutaneous fat, tendons, muscles, and nerves. It is commonly due to trauma and is frequently encountered in the arm, shoulder, thigh, and hand which are prone to trauma. Non‐traumatic MOC arising from the abdominal muscles is extremely rare. We report a case of 7‐year‐old male child with a three‐year history of progressive painless abdominal swelling in the left hypochondria region with no history of associated trauma. CT scan of the abdomen showed a well‐defined hyperdense mass in the left external oblique muscle. Histological diagnosis confirmed myositis ossificans of the external oblique muscle. The mass was removed surgically with no immediate or late complications. Non‐traumatic MOC of the abdominal muscles is very rare. Radiological investigations are crucial in the diagnosis and for differentiating a MO lesion from other malignant soft‐tissue tumors as we demonstrated in this case report.
ISSN:2050-0904
2050-0904
DOI:10.1002/ccr3.6145