Melorheostosis is a rare, nonhereditary, benign, mesenchymal condition of unknown aetiology affecting the bones and surrounding tissues. A male patient complaining of left shoulder pain, swelling, and mildly limited range of motion has an exclusive combination of the classic dripping wax lesion in the scapula and the myositis ossificans-like lesion in the deltoid muscle; this combination is the...

Heterotopic ossification is a benign process of mature laminar bone formation in the soft tissues. A synonymous term used to describe this pathology in muscle is myositis ossificans. The pathogenesis is unclear, but is likely multifactorial. The basic pathology is thought to be ectopic production of osseous tissue as part of a repair process in response to tissue injury. This report describes a...

A 61-year-old woman was admitted with severe hip pain causing immobility and high serum levels of inflammatory markers. The patient had a medical history of diabetes. She had been scheduled to undergo right hip replacement surgery for the treatment of osteoarthritis associated with gradually progressive pain. On admission, an enhanced abdominal computed tomography scan showed an abnormal increa...

Radiographs and magnetic resonance images were not published for want of space. Magnetic resonance imaging is superior to computed tomography for detection of a soft tissue mass. Hence computed tomography was not considered in our preoperative investigations. The diagnosis of osteosarcoma was not made before the biopsy. Open biopsy was performed rather than fine-needle aspiratory cytology or ne...

Extraskeletal osteochondroma in the nape of the neck is rare and its pathological diagnosis is based on radiological and histopathological examination. It is vital that such a diagnosis be considered when a discrete, ossified mass is localised in soft tissues, even at atypical sites. Differential diagnoses include myositis ossificans, a lipomatous lesion, a pseudomalignant osseous tumour, an os...

First reported more than 250 years ago by Patin who describe it as “turning into wood” (1), Fibrodysplasia (Myositis) Ossificans Progressiva (FOP) is a rare autosomal dominant disorder (approximately 1 in 1.6 million worldwide) marked by post-natal progressive heterotropic ossification (HO) of soft tissue including tendons, ligaments, fascia and muscle (1). Despite all the great advances in sci...