Fibrodysplasia ossificans progressiva (FOP) is a rare hereditary connective tissue disease characterized by the progressive ectopic ossification of ligaments, tendons, and facial and skeletal muscles throughout life. Symptoms begin in childhood as localized soft tissue swellings. Immobility and articular dysfunction appear with involvement of the spine and proximal extremities. The temporomandi...

(P.P.H.), as a syndrome of anatomic anomalies similar to Pseudohypoparathyroidism(namely, short stature, round face, short metacarpal or metatarsal bone and ectopic ossification), with normal serum concentration of calcium and phosphate. Since 1952, many cases were reported all over the world. But we have never seen the report in Japan. Recently, we have experienced a young girl(10 years)who ha...

Myositis ossificans progressiva (MOP) is an autosomal dominant disorder. There is a progressive ectopic ossification and skeletal malformation, mainly in the connective tissue of muscle. The diagnosis is based on the clinical findings and radiological demonstration of the skeletal malformations. A 38-year-old female patient was admitted to our department with progressive increase of the thigh. ...

A cardiac myxoma, a rare but relatively common tumor, was surgically excised. Histopathological examination of the lesion revealed an extensive internal ossification. Ossification interior myxomas is rarely reported, and most are large tumors; however, this case small tumor. The cause ossification has not yet been clearly reported.

Purpose : Ossification of the laryngeal cartilage has been investigated, including pattern ossification, age-related changes, and sex differences. This study aimed to examine beginning, processes, differences ossification in Japanese patients using ultra-high-resolution computed tomography (UHRCT).