History
Until the 1990s, all nonepithelial tumors of the gastrointestinal tract were called "gastrointestinal stromal tumors" from smooth muscle origin. Histopathologists generally did not distinguish between the types, as this did not affect either therapy or prognosis. Subsequently, CD34, and later CD117 were identified as markers that could distinguish the various types.
Read more about this topic: Gastrointestinal Stromal Tumor
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“If man is reduced to being nothing but a character in history, he has no other choice but to subside into the sound and fury of a completely irrational history or to endow history with the form of human reason.”
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the lesbian archaeologist watches herself
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“The history of all hitherto existing society is the history of class struggles.”
—Karl Marx (18181883)