Dictionary » S » Sarcoma



(Science: oncology, tumour) A form of cancer that arises in the supportive tissues such as bone, cartilage, fat or muscle.

kaposi sarcoma: a sarcoma of spindle cells mixed with angiomatous tissue. Usually classed as an angioblastic tumour. A fairly frequent concomitant to hIV. Infection or long term immunosuppresion.

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Gene-sharing possible between viruses, protozoa & bacteria?

Definitely. :) One example of this is the rous sarcoma virus (RSV), which picked up a copy of the src gene. The discovery of this was a major milestone in our understanding of cancer, because the virus uses the (now mutated) gene to cause tumours. ...

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by AstraSequi
Sun Jan 29, 2012 2:36 am
Forum: General Discussion
Topic: Gene-sharing possible between viruses, protozoa & bacteria?
Replies: 10
Views: 5128

Sarcoma vs Carcinoma

... originating in the epithelium, or can it also come from endothelium, or basically any tissue that derives from the embryonic ectoderm? Same with sarcoma: any type of tumour that has the origin in the mesoderm? (e.g. A tumor of the blood cell lineage, bone marrow, are also considered sarcoma? ...

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by kk
Mon Nov 28, 2011 4:50 pm
Forum: Human Biology
Topic: Sarcoma vs Carcinoma
Replies: 0
Views: 2059

Re: Focus lesion ?

Some oncogen RNA Viruses both as multiplyies and as causes proliferation in cells.For example ; Rous Sarcoma Virus creates "focuses" which is composed by prolifered cells. Every focus states an infected virus.With this process , orijinal virus suspension's infected ...

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by Ozan
Tue Nov 15, 2011 10:49 am
Forum: Microbiology
Topic: Focus lesion ?
Replies: 3
Views: 2193

Tissue cells and cancers.

... mutations. With conditions such as AIDS there are no CD4+ T cells to help the immune system, and malignancies occur more easily. Kaposi's sarcoma is a typical example of a malignancy where a virus has turned the cell into a cancer cell, and the immune system cannot eradicate it anymore. ...

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by biohazard
Tue Sep 21, 2010 11:29 am
Forum: General Discussion
Topic: Tissue cells and cancers.
Replies: 4
Views: 10118

Re: There is no HIV?? But there is AIDS??

... how history of this medical hypothesis was fraught with controversy: the accidental ingestion of the inhalant amyl nitrate could cause kaposi's sarcoma and pneumonia, but this was not explored as a disease source in the initial patients - instead, a theory was developed of the first retrovirus ...

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by junkscientists
Fri Jun 11, 2010 7:12 pm
Forum: Human Biology
Topic: There is no HIV?? But there is AIDS??
Replies: 11
Views: 22180
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