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Difference between revisions of "Basics"
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→Probable category by morphology
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*Carcinoma = cohesive, relatively large (>~2X neutrophil), +/-nucleolus, +/-gland formation (circular structures), often moderate to abundant cytoplasm. | *Carcinoma = cohesive, relatively large (>~2X neutrophil), +/-nucleolus, +/-gland formation (circular structures), often moderate to abundant cytoplasm. | ||
*Sarcoma = cohesive, composed of spindle cells (cells taper at both ends, nucleus oval/cigar-shaped). | *Sarcoma = cohesive, composed of spindle cells (cells taper at both ends, nucleus oval/cigar-shaped). | ||
*Germ cell tumour = appearance often similar to ''carcinoma'', site ( | *Germ cell tumour = appearance often similar to ''carcinoma'', site (location) very useful - esp. gonadal, midline, retroperitoneal. | ||
*[[Neuroendocrine carcinoma]] = cohesive, fine granular chromatin and no nucleolus. | *[[Neuroendocrine carcinoma]] = cohesive, fine granular chromatin and no [[nucleolus]]. | ||
*Lymphoma = dyscohesive, relatively small (usually <=2X neutrophil diameter), usu. scant basophilic (blue) cytoplasm. | *Lymphoma = dyscohesive, relatively small (usually <=2X neutrophil diameter), usu. scant basophilic (blue) cytoplasm. | ||
*Melanoma = classically pigmented, often a prominent [[red nucleolus]], a mix of spindle cells and epithelioid cells, mix of cohesive and dyscohesive cells. | *Melanoma = classically pigmented, often a prominent [[red nucleolus]], a mix of spindle cells and epithelioid cells, mix of cohesive and dyscohesive cells. | ||