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Sarcoma vs Carcinoma

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Sarcoma vs Carcinoma

Postby kk » Mon Nov 28, 2011 4:50 pm

I have same basic questions.

I have a problem defining what carcinoma means: a tumour 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? A tumour of mesothelium is also a sarcoma?)

One more: is it true that a mesothelial cell and a mesenchymal cell has nothing to do with each other other than they both originate in the embryonic mesoderm?

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