Carcinoma – Malignant tumor arising in epithelial or endothelial cells
e.g. skin – squamous carcinoma
breast duct – duct cell carcinoma
lung – adenocarcinoma, squamous carcinoma
GI tract – adenocarcinoma
Sarcoma – Malignant tumor arising in non-epithelial cells; in connective tissue
e.g. Bone - osteosarcoma
Fat – liposarcoma
Muscle – rhabdomyosarcoma
Blood vessel - hemangiosarcoma
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