Myositis ossificans occupying the thenar region: a case report.

Introduction: Myositis ossificans is a benign, self-limiting, tumor-like lesion that usually affects the elbow and thigh; occurrence in the hand is uncommon. We report a rare case of a patient with myositis ossificans in the thenar region.

Case Presentation: A 15-year-old Japanese girl presented to our hospital with a 2-month history of a painful mass in the right thenar region without previous trauma.

Avulsion Fracture of the Calcaneus Treated With a Soft Anchor Bridge and Lag Screw Technique: A Report of Two Cases.

The displaced extra-articular avulsion fracture of the calcaneus has been classified as a Böhler type 1c calcaneal fracture, and most cases will require surgical repair. In the present report, we describe 2 patients in whom we performed the soft anchor bridge technique using single loaded suture anchors with lag screws for the repair of Böhler type 1c avulsion fractures of the calcaneus. In one of these patients, clinically relevant osteoporosis complicated the injury.

Giant cell tumor of the tendon sheath extending around the patellar tendon and invading the knee joint and tibia: A case report.

The current report presents the case of a 41-year-old male exhibiting a giant cell tumor of the tendon sheath (GCT-TS) arising from the patellar tendon sheath. Plain radiography and magnetic resonance imaging revealed a well-localized mass that wrapped around the patellar tendon, and extended from the subcutis into the infrapatellar fat pad and tibia. Following histopathological determination of the diagnosis, a piecemeal resection was performed.

Various types of LRP5 mutations in four patients with osteoporosis-pseudoglioma syndrome: identification of a 7.2-kb microdeletion using oligonucleotide tiling microarray.

Osteoporosis-pseudoglioma syndrome (OPS; OMIM 259770) is an autosomal-recessive genetic disorder characterized by severe osteoporosis and visual disturbance from childhood. Biallelic mutations in the low-density lipoprotein receptor-related protein 5 gene (LRP5) have been frequently detected, while a subset of patients had only one or no detectable mutation. We report on the clinical and molecular findings of four unrelated Japanese patients with the syndrome.

Serum soluble interleukin-2 receptor levels in patients with malignant lymphoma of bone.

Background: The reliability of selected serum markers and radiological features for distinguishing malignant lymphoma of the bone from other osteolytic bone lesions was examined in an effort to improve the differential diagnosis.

Methods: A total of 23 patients with histologically verified malignant lymphoma of the bone, 57 patients with other osteolytic malignancies (35 males, 22 females; mean age 62.8 years, range 13-89 years), and 13 patients with benign bone lesions that resemble malignant tumor radiographically (6 men, 7 women; mean age 48.

Dedifferentiated chondrosarcoma arising in a solitary osteochondroma with leiomyosarcomatous component: a case report.

Background: A rare variant of dedifferentiated chondrosarcoma with leiomyosarcomatous component in a 63-year-old male is reported.

Case Report: He had a life-long osteochondroma adjacent to the left knee and recently developed swollen and pain. We initially suspected an intermediate grade chondrosarcoma arising in a solitary osteochondroma, but a biopsy specimen revealed a dedifferentiated component that histologically was classified as leiomyosarcoma.

Evaluation of postoperative general quality of life for patients with osteosarcoma around the knee joint.

We evaluated the medium and long-term outcomes on the basis of patients' function and general quality of life after three different surgical procedures for osteosarcoma around the knee joints, that is, amputation, prosthetic reconstruction and rotationplasty. Twenty-six procedures in 22 patients who survived for at least 1 year after surgery were assessed for functional analysis (scores of the Musculoskeletal Tumor Society), and health-related quality of life assessment (SF-36) was applied to 17 patients who are alive without the disease. The patients treated with rotationplasty showed significantly high functional scores in two of six categories as compared with those undergoing the other two procedures.

[A patient with advanced recurrent breast cancer who firmly resisted hair loss and was then treated by combination therapy with high-dose toremifene and capecitabine].

The patient was a 36-year-old woman, who found a mass in her right breast around April 2002, visited a physician in June, and was referred to our department because of suspected right breast cancer. It was confirmed that the cancer had metastasized to the right axillary lymph nodes and the skin of the right breast. After undergoing an operation on July 11 (Bt+Ax), the patient was placed on tamoxifen (TAM).

Recurrent granulomatous tenosynovitis of the wrist and finger caused by Mycobacterium intracellulare: a case report.

We report a 65-year-old man with tenosynovitis of the wrist and finger caused by Mycobacterium intracellulare. The diagnosis was made after subsequent recurrence, when a specimen of synovial fluid was subjected to specific polymerase chain reaction and mycobacterial culture. Synovectomy and susceptibility-guided antituberculous therapy permitted complete healing of tenosynovitis.

A transepiphyseal fracture of the proximal femur combined with a fracture of the mid-shaft of ipsilateral femur in a child: a case report and literature review.

The paper describes a rare fracture of proximal femur, classified by Delbet (Am J Surg 6:793-797, 1929) as type I (transepiphyseal type) combined with a fracture of the midshaft of ipsilateral femur in a 2-year-old child. Immediate operation with open reduction and internal fixation was successful. During the postoperative course, avascular necrosis (AVN) of capital femoral epiphysis was seen by bone scan.

Serum total acid phosphatase for monitoring the clinical course of giant cell tumors of bone--26 patients with 5 local recurrences.

Background: Giant cell tumor of bone (GCT) is a bone-destroying tumor that sometimes recurs locally after treatment. A recent study showed increased levels of serum total acid phosphatase (TACP).

Methods: We assessed TACP in the serum of 26 patients with primary GCT, and in 5 of them who developed a local recurrence.

Recurrence potential of diffuse-type giant cell tumor in the foot: radiologic and pathologic features.

Background: Aggressive musculoskeletal tumors in the foot, such as diffuse-type giant cell tumors or extra-abdominal desmoid tumors, are difficult to treat because the foot does not have enough soft tissue to allow wide tumor resection. We reviewed the clinical behavior of diffuse-type giant cell tumor in the foot and evaluated the recurrence potential of these tumors from radiologic and pathologic perspectives.

Methods: Six patients with a mean age of 37.

Imaging of ancient schwannoma.

Objective: We surveyed the clinical symptoms and radiologic features of ancient schwannoma, a rare variant of schwannoma characterized by degenerative changes.

Materials And Methods: We present the clinical, radiologic, and pathologic features in seven patients with ancient schwannoma (mean age, 62 years; range, 45-80 years) treated at our department between 1998 and 2003.

Results: The most characteristic clinical features were a sign like Tinel's sign and a long interval between the onset of symptoms and surgery (mean interval, 8.

Bilateral solid parameniscal masses in the knees.

Parameniscal cysts of the knee joint are usually considered to be minor asymptomatic lesions associated with meniscal injury. We report on a rare case of bilateral knee masses in the medial soft tissues that resembled parameniscal cysts in terms of location and structure. The patient was an 80-year-old woman with severe osteoarthritis.