Osteoma is an uncommon bone tumor in avian species and other animals. A 2-year-old male canary (Serinus canaria) with a history of an oval mass in the left wing for several months was examined. Radiographs showed a radio-opaque mass. Upon the bird’s owner request, the canary was euthanatized and submitted for necropsy. The histopathologic examination revealed numerous trabeculae consis...

Cytogenetic studies carried out in a boy with multiple congenital anomalies showed a partial deletion of the long arm of chromosome 18. The child later developed an extraskeletal Ewing's sarcoma. The possible association of the tumour with 18q- syndrome is discussed.

To our knowledge extraosseous osteosarcoma has not been reported in the Malaysian literature. We report a case of extraosseous osteosarcoma which was treated by intra-arterial chemotherapy, embolization, wide resection of tumour and salvage of limb with good functional result.

1Department of Clinical and Experimental Medicine, University of Messina, Viale Gazzi, 98123 Messina, Italy 2Institute of Molecular BioMedicine, Medical Faculty, Comenius University, Sasinkova 4, 811 08 Bratislava, Slovakia 3Department of Internal Medicine, Service of Nephrology, University Hospital (CHUV), Avenue du Bugnon 17, 1011 Lausanne, Switzerland 4Nephrology, Med School, Second Universi...

Primary abdominal extraskeletal osteosarcoma (EOS) is a rare carcinoma. The present study reports a case of a primary abdominal EOS involving the greater omentum and also presents a review of the literature on the etiology, diagnosis, differential diagnosis, pathological features, treatment and prognosis of the disease. The patient in the present study underwent laparoscopic surgery. A patholog...

Osteoid osteoma (OO) is a benign osteogenic lesion that is extremely rare in jaws. It is characterized by proliferation of either cancellous or compact bone and can be central, peripheral or extraskeletal. Pain is a distinctive feature of this lesion accompanied by vasomotor disturbances, which occur long before radiographic and histopathology findings manifest. Here, we present a rare case rep...

ewing’s sarcoma is a round cell malignancy of bone and soft tissue that occurs predominately in adolescents and young adults.it is an uncommon malignancy, but is recognized as the second most prevalent primary bone tumor worldwide. extraosseous ewing’s sarcoma is extremely rare and can affect the skin, soft tissues, or viscera. prognostic and therapeutic features of ewing’s extraosseous tumors ...