A rare intramuscular osteolipoma: A case report.

Introduction: Lipomas are frequently presented in adults and account for almost 50% of all soft-tissue tumors. Osteolipomas are rare and usually located in the intraosseous region or adjacent to bone. It is very unusual for osteolipomas with no connection to bony structures.

[A case of sclerosed hemangioma mimicking intrahepatic cholangiocarcinoma].

Hemangioma is one of the most frequently encountered benign hepatic neoplasm which can develop secondary degeneration. Sclerosed hemangioma is a rare disease histologically characterized by large amount of collagen and elastic fibril between sclerosed small vessels. Its differential diagnosis is very difficult.

A 9-month-old phosphaturic mesenchymal tumor mimicking the intractable rickets.

Phosphaturic mesenchymal tumor is an extremely rare disease and is frequently associated with oncogenic osteomalacia showing paraneoplastic syndrome, which is characterized by phosphaturia, hypophosphatemia, normocalcemia, and decreased levels of 1,25-dihydroxyvitamin D3 associated with a tumor. A 2-year-old boy, who had a soft tissue tumor on his right thigh and previously diagnosed as myositis ossificans at 9-months-old, was presented with rachitic rosary and mildly enlarged tumor. Biochemical investigations showed hypophosphatemia, hyperphosphaturia, and an increased alkaline phosphatase level of 440 U/l (25-100 U/l), suggesting rickets, which was resistant to vitamin D dietary supplementation.

Metastasizing dermatofibroma in lung.

Benign dermatofibroma is very common skin tumor and can very rarely metastasize. We report a case of metastasizing dermatofibroma on a 36-year-old woman who presented multiple bilateral lung nodules. She underwent incisional biopsy for cellular dermatofibroma of the right shoulder 7 years ago.

Thermo-optically tunable band-rejection filters using mechanically formed long-period fiber gratings.

We present tunable mechanically formed long-period fiber gratings whose resonance peaks are shifted by the thermo-optic effect of a medium surrounding the fiber cladding. A novel grating formation method and tuning principles that use periodically arrayed metal wire are described. The performance as an active gain equalizer of an erbium-doped fiber amplifier is also reported.

Prognostic significance of bcl-2, bax, and p53 expression in diffuse large B-cell lymphoma.

Diffuse large B-cell lymphoma (DLCL) exhibits heterogeneous clinical features and varies markedly in response to treatment and prognosis. Because apoptosis-related proteins may play an important role in predicting the prognosis of DLCL, the current study investigated the prognostic significance of a high level of bcl-2, bax, and p53 expression in relation to clinical characteristics in patients with DLCL. Paraffin-embedded specimens from 94 patients with de novo DLCL were analyzed immunohistochemically for bcl-2, bax, and p53 gene expression.

Double primary mucoepidermoid carcinoma and hepatocellular carcinoma of the liver--a case report.

Double primary mucoepidermoid-hepatocellular carcinoma of the liver is extremely rare, and only one case has previously been reported in the literature, although there have been about 14 cases of primary mucoepidermoid carcinoma of the liver. Most of the reported hepatic mucoepidermoid carcinoma showed a poor prognosis. We presently report the second case of a double primary mucoepidermoid carcinoma and hepatocellular carcinoma with a brief review of the published literature.