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(→Basic pathologic DDx of malignancy: wikify) |
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===Histomorphologic classification=== | ===Histomorphologic classification=== | ||
Types of cells: | Types of cells: | ||
*Spindle cell: | *[[Spindle cell]]: | ||
**Tapered at both ends.<ref>URL: [http://www.medterms.com/script/main/art.asp?articlekey=25657 http://www.medterms.com/script/main/art.asp?articlekey=25657]. Accessed on: 18 January 2010.</ref> | **Tapered at both ends.<ref>URL: [http://www.medterms.com/script/main/art.asp?articlekey=25657 http://www.medterms.com/script/main/art.asp?articlekey=25657]. Accessed on: 18 January 2010.</ref> | ||
**Suggests mesenchyme, i.e. sarcoma, compatible with melanoma and some carcinomas. | **Suggests mesenchyme, i.e. sarcoma, compatible with melanoma and some carcinomas. | ||
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*[[Small round blue cell tumour]]: | *[[Small round blue cell tumour]]: | ||
**Small cells with scant cytoplasm. | **Small cells with scant cytoplasm. | ||
***"Small" is classically 2x a "resting lymphocyte" diameter. | |||
****Diameter of a "resting lymphocyte" ~ diameter of a [[red blood cell]] (RBC) ~ 8 micrometres. | |||
****Most carcinoma cells are 3-4x the size of a RBC. | |||
==Finding the elements== | ==Finding the elements== |
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