Results 251 to 260 of about 2,304,945 (294)
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Desmoplastic fibroma with malignant transformation
Annals of Diagnostic Pathology, 2010Desmoplastic fibroma (DF) is a rare neoplasm of bone, showing infiltrative and locally aggressive nature. Here, we report a case of DF with an unusual histology arising in a 41-year-old female in the left distal femur, which was detected by plain x-ray as an osteolytic lesion and by magnetic resonance imaging as a well-demarcated mass with endosteal ...
Hye Sook, Min +4 more
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Malignant Transformation in a Laryngeal Hemangioma
Annals of Otology, Rhinology & Laryngology, 1990Laryngeal angiosarcoma is uncommon, with only 19 previously reported cases. Malignant transformation in nonirradiated hemangiomas is extremely rare, with only five equivocal cases reported, all of which occurred in the skin. We report the first documented case of malignant transformation in a laryngeal hemangioma, and review the literature.
R D, McRae +3 more
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Chemotherapy for Teratoma With Malignant Transformation
Journal of Clinical Oncology, 2003Purpose: Teratoma with malignant transformation (MT) is a well-described entity that refers to the MT of a somatic teratomatous component in a germ cell tumor (GCT) to a histology that is identical to a somatic malignancy (eg, rhabdomyosarcoma [RMS]).
Alessia C, Donadio +7 more
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Concepts in malignant transformation.
South African journal of surgery. Suid-Afrikaanse tydskrif vir chirurgie, 2015The precise biochemical nature of malignant transformation remains elusive. This article reviews some of the current theories of oncogenesis and aims to synthesize these concepts into a possible schema for the origins of malignant transformation, using a cell-programmed origin for neoplastic progression.
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Acrokeratosis Verruciformis: Malignant Transformation
Dermatologica, 2009A case of acrokeratosis verruciformis in which squamous carcinoma occurred is described. No previous report of this occurrence could be found. The authors consider acrokeratosis verruciformis as a distinctive disease and not a variation of Darier’s disease.
M, Dogliotti, A, Schmaman
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Test Tube Malignant Transformation
Archives of Otolaryngology - Head and Neck Surgery, 1969ONE MORE step has been taken toward establishing a viral etiology of cancer. Forty years ago at Harvard Medical School your Chief Editor was taught that the existence of a filterable virus that could produce sarcoma, as claimed by Rous was extremely doubtful (personal communication, 1928). Now, from this same institution, Dr. Paul H. Black 1 reports in
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MALIGNANT TRANSFORMATION OF RENAL ANGIOMYOLIPOMA
The Journal of Urology, 1999A 42-year-old man without tuberous sclerosis presented with a 1-year history of an abdominal mass, right flank pain and weight loss of 16 pounds. Computerized tomography (CT) revealed a large heterogeneous lower pole mass of the right kidney with tumor thrombus in the ipsilateral renal vein extending into the vena cava (fig. 1). There was no suggestion
A P, Christiano, X, Yang, G S, Gerber
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Telomeres, Telomerase and Malignant Transformation
Current Molecular Medicine, 2005Human cancer arises in a stepwise process by the accumulation of genetic alterations in oncogenes, tumor suppressor genes and other genes involved in the regulation of cell growth and proliferation. Many genes, important for the pathogenesis of various cancers and the pathways through which they act, have been characterized over the past decades ...
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Malignant transformation of a tailgut cyst.
Annali italiani di chirurgia, 2017Tailgut cyst are congenital cystic lesion arising from remnant of the embryological postnatal gut. Tailgut cyst are multinodular, uncapsulated and usually well-circumscribed. Presacral cysts are rare in adult and most of the lesions are benign. Malignant degeneration can occur, however is extremely rare.We present the case of a 74 years old woman with ...
Manco G. +5 more
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Oncogenes and malignant transformation
Urological Research, 1986H, van Ormondt, A J, van der Eb
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