Cases reported "Bone Neoplasms"

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1/139. Fatal pulmonary tumor embolism caused by chondroblastic osteosarcoma: report of a case and review of the literature.

    Fatal pulmonary tumor embolism is an unusual phenomenon that has only rarely been reported with osteosarcoma. It usually presents with typical symptoms and signs of pulmonary thromboembolism. The authors report the case of a 65-year-old woman with chondroblastic osteosarcoma of the distal femur who suffered a fatal tumor embolism 30 hours after surgery and review the literature.
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ranking = 1
keywords = fat
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2/139. Intraosseus lipoma.

    The authors present a case of intraosseus lipoma seen at the Orthopaedic Clinic of the University of Bari, bringing the total in the world literature to thirty cases. The tumour is a benign primary neoplasm of bone, made up of mature adipose tissue containing atrophic bone trabeculae. This affection is a definite entity quite distinct from parosteal lipomas arising in periosteum, fasciae and muscles which only affect the bone secondarily by compression or direct invasion. Emphasizing the extreme rarity of the tumour, the authors discuss its clinical, radiological, anatomical and pathological features. The differential diagnosis is with certain dysplasic and neoplastic lesions of bone such as: bone cyst, non-ossifying fibroma, aneurismal cyst, monostotic fibrous dysplasia, and solitary myeloma. Complete removal is followed by cure.
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ranking = 83.420904322549
keywords = adipose
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3/139. Primary pure intratesticular fibrosarcoma.

    Testicular sarcoma appears to be a rare stromal tumor usually of indolent course with potential for distant metastases. A pure primary intratesticular fibrosarcoma in a 71-year-old male is presented. By the time the tumor became evident metastases had already occurred widely. The course was rapidly fatal. A review of the literature yielded only one case reported previously. The present case illustrates that pure fibrosarcoma occurs occasionally as a stromal tumor and may be associated with a dismal prognosis. The diagnosis of pure fibrosarcoma should be made only after extensive sampling of the testicular tumor to rule out an associated germ cell component. The differential diagnosis also includes the fibroma of gonadal stroma origin and the unclassified sex cord-stromal tumor with a predominance of spindle cells.
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keywords = fat
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4/139. Para-articular chondroma and osteochondroma of the infrapatellar fat pad: a report of three cases.

    We report three cases of para-articular chondroma and osteochondroma in the region of infrapatellar fat pad. All three lesions were resected and examined histologically. Two of them were primarily cartilaginous with a lobular pattern internally, and one uniformly osseous with peripheral cartilage. We conclude that these lesions are not the same. The former should be designated para-articular chondroma after Jaffe and the latter, osteochondroma.
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keywords = fat
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5/139. life-threatening tamoxifen-induced hypercalcaemia.

    This case report serves to emphasize two important features of metastatic breast carcinoma. First, that tamoxifen-induced flare, although a rare and self-limiting phenomenon, may be fatal and must thus be recognized and treated promptly. Secondly, those patients presenting with hypercalcaemia, as part of tamoxifen-induced tumour flare, invariably have metastatic disease but they may enjoy a durable prognosis if this is confined to the skeleton.
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keywords = fat
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6/139. Sudden unilateral deafness with endolymphatic sac adenocarcinoma: MRI.

    A 30-year-old man presented with sudden left deafness and vertigo. CT showed an osteolytic retrolabyrinthine tumour of the left temporal bone. High signal from the tumour and labyrinth was seen on fat-suppressed T 1-weighted images. At surgery, a haemorrhagic papillary-cystic adenocarcinoma of the endolymphatic sac was found.
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keywords = fat
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7/139. Unusual late extrapulmonary metastasis in osteosarcoma.

    The major site of metastasis from osteosarcoma is the lung, and over 90% of fatalities in patients with this disease die from pulmonary metastases. Extrapulmonary disease is developing in an increasing proportion of patients, usually after pulmonary metastasis. This study reports three cases of patients with osteosarcoma that metastasized to the brain, mediastinum, intramuscular site, and pelvic cavity. The physician must be aware that extrapulmonary metastases may be present at the time a pulmonary metastasis becomes evident.
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keywords = fat
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8/139. Parosteal lipoma with hyperostosis.

    A case of parosteal lipoma of the femur combined with hyperostosis is presented. The parosteal lipoma is a rare benign tumor containing adipose tissue and is intimately related to the periosteum. We report the MRI features and correlative pathologic findings of a parosteal lipoma. The MRI technique is useful for evaluating the relationship between the periosteum and the lipoma.
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ranking = 83.420904322549
keywords = adipose
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9/139. Fatal hyperkalemia during rapid and massive blood transfusion in a child undergoing hip surgery--a case report.

    We report a girl who developed severe and fatal hyperkalemia following rapid and massive blood transfusion during surgery. She was 7-year-old, 20-kg in weight, and received wide resection of the femoral bone with custom prosthesis implant because of malignant femoral osteosarcoma. During the procedure, bleeding was active and profuse and amounted to about 3,000 mL in 4 h, eventuating in shock. Despite rapid transfusion with 15 units of packed red blood cells (RBC) still she remained hypotensive and hypovolemic. When we switched to give her whole blood, actually 100 mL having been given, widening of QRS complex followed immediately by cardiac arrest developed. cardiopulmonary resuscitation although started at once was unsuccessful. At this juncture, arterial blood gas analysis showed acidosis and severe hyperkalemia (10.3 mmol/L), possibly resulting from transfusion of blood of older storage. The case reminded us once again the importance and necessity of the use of potassium-low blood component (fresh, saline-washed RBCs) in case of massive and rapid blood transfusion especially in pediatric patients with hypovolemia and low cardiac output.
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keywords = fat
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10/139. Ileal carcinoid tumor complicating carcinoid heart disease and secondary retroperitoneal fibrosis.

    A 70-year-old man with metastatic liver tumors showed carcinoid syndrome with clinical symptoms of facial flushing, palpitation, dyspnea, and an itching sensation. Regurgitation of the tricuspid and aortic valves was observed by echocardiography. An elevated serum level of serotonin and a high urine excretion of serotonin metabolites were confirmed. autopsy confirmed a serotonin-immunoreactive 1 cm ileal carcinoid tumor with metastasis to the liver, bone and peritoneum. The tumor cells were argyrophilic but not argentaffin, and showed erythrophagocytosis in the primary lesion. All the four heart valves and bilateral atrial endocardium showed fibromyxoid thickening, indicating the association of carcinoid heart disease. Desmoplastic reaction with deposition of sulfated acid mucopolysaccharides was also observed in the retroperitoneal space (secondary retroperitoneal fibrosis). Stenosis of the bilateral ureters and inferior mesenteric artery provoked hydronephrosis and lethal ischemic necrosis of the left-sided colon, respectively. Rarity of functioning ileal carcinoid tumor and pathogenesis of systemic fibroplasia are discussed.
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keywords = fat
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