Chondromyxoid Fibroma of Clavicle Presenting as Radiological Disappearance of Bone

Case?Presentation Chondromyxoid fibroma (CMF) is a relatively rare bone tumor of cartilaginous origin and it comprises less than 1% of all primary bony tumors. Clavicle is an unusual site of involvement for any bone tumor and may produce diagnostic dilemma. Approximately only 1% of all primary bone tumors may involve the clavicle. The literature on clinical features and outcome of CMF clavicle remains sparse. Conclusion?We present an unusual case of CMF clavicle in which the medial aspect of the clavicle gradually disappeared on radiographs. CMF should be included in the differential diagnoses of disappearing bone disease.

Orthotic management with a customized humeral brace for Gorham-Stout disease of the humerus: A case report

@#Gorham-Stout disease is characterized by massive osteolysis or "vanishing bone" on radiograph. Due to its rarity, no standard Physical Medicine and Rehabilitation (PM&R) management has been published. With this comes the dilemma of managing another case of vanishing right humerus in a 13 year-old male, right handed student, with normal growth and development. To date, this could be the third documented case in the Philippines, but the first with humeral involvement, and the first to manage using a customized humeral brace. The absence of the right humerus affects the bimanual overhead and tabletop activities of the patient, for which a custom-made humeral orthosis was provided to manage the limited activities. There were improvements in activities such as writing, card turning, stacking, and lifting objects of variable weights, as well as with hand dexterity as evidenced by the standardized hand function tests done prior and post brace fitting. Being a rare bone disease with no standard management and unpredictable course, cases are managed symptomatically. For this case of an absent humerus significantly affecting upper extremity function, orthotic management is one aspect that could be recommended to achieve positive functional outcomes.

Multicentric Disappearing Bone Disease treated with Arthroplasty

Multicentric disappearing bone disease, or Gorham disease, is a rare entity. A middle age woman, presented to us with left sided antalgic gait and severe bony deformity of her left knee. Radiograph revealed massive bone defect of the medial condyle of the left tibia with subluxation of the knee joint. She was scheduled for knee replacement in six months. However, she developed another lesion over the right hip that typically mimicked the disease progression of disappearing bone disease. The right femoral head vanished progressively within three months without significant history of infection or trauma. Subsequent bone biopsy of the right femoral head and left tibia condyle confirmed the diagnosis. Total knee replacement was carried out for her left knee. She remained pain free on her left knee. A year later, after confirming by sequential radiographs that the osteolysis had stopped, total right hip replacement was performed. Five years later, she remained pain free and both the arthroplasties were stable.

Gorham’s Disappearing Bone Disease: A Rare Cause of Extensive Bone Destruction

Osteolytic disease of the bones have a myriad range of aetiology. One rare cause is Gorham’s disease or disappearing bone disease. This disease is a diagnosis by exclusion using correlation made with clinical presentation, radiological findings and histopathological confirmation. Although many different therapies have been advocated, none have been successful in fully controlling this disease. We present a case that was detected in a Chinese lady using diagnostic imaging, confirmed with computed tomography guided biopsy and successfully treated with joint reconstruction using endoprosthesis.

A Case of an Idiopathic Massive Osteolysis with Skip Lesions

A patient with a 2-year history of pain in the left arm, and decreased strengths unrelieved by non-steroidal anti-inflammatory therapy, was being referred for repeating radiography. The radiologic examinations have demonstrated a unique pattern of non-contiguous osteolysis in the left elbow, proximal and distal radius, ulna, wrist, carpal bones, proximal and distal metacarpals and phalanges. Multi-site biopsies were being performed and confirmed the diagnosis of massive osteolysis. To our knowledge, this is the first case in which multifocal, non-contiguous osteolysis with skip lesions without associated nephropathy and without a hereditary pattern is being described in one extremity.

Disappearing Bone Disease with Disappearing Spleen.

A 6-year-old girl who reported for pain abdomen was incidentally detected to have multiple osteolytic lesions on X-ray. She was diagnosed as a case of Gorham’s disease following confirmation with histopathology and kept on close follow–up. She was admitted again after 2 years for fever and investigations revealed an absent spleen apart from multicentric osteolytic lesions. This is the first case reported of a child with Gorham’s disease who has had an auto-splenectomy on follow-up.