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Difference between revisions of "Non-malignant skin disease"
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Non-malignant skin disease (view source)
Revision as of 13:58, 9 November 2012
, 13:58, 9 November 2012→Palmar fibromatosis: +micro
(→Palmar fibromatosis: +micro) |
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===Microscopic=== | ===Microscopic=== | ||
Features:<ref>URL: [http://surgpathcriteria.stanford.edu/softfib/plantar_fibromatosis/printable.html http://surgpathcriteria.stanford.edu/softfib/plantar_fibromatosis/printable.html]. Accessed on: 6 January 2011.</ref> | Features:<ref>URL: [http://surgpathcriteria.stanford.edu/softfib/plantar_fibromatosis/printable.html http://surgpathcriteria.stanford.edu/softfib/plantar_fibromatosis/printable.html]. Accessed on: 6 January 2011.</ref><ref name=standford_pf_ddx>URL: [http://surgpathcriteria.stanford.edu/softfib/palmar_fibromatosis/differentialdiagnosis.html http://surgpathcriteria.stanford.edu/softfib/palmar_fibromatosis/differentialdiagnosis.html]. Accessed on: 9 November 2012.</ref> | ||
*Poorly demarcated, | *Poorly demarcated, usu. multiple lesions/multiple nodules. | ||
*Composed of bland spindle cells in dense collagen. | *Composed of bland spindle cells in dense collagen. | ||
**Pale grey cytoplasm. | **Pale grey cytoplasm. | ||
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*Mitotic figures - rarely present, none atypical. | *Mitotic figures - rarely present, none atypical. | ||
DDx:<ref>URL: [http://surgpathcriteria.stanford.edu/softfib/palmar_fibromatosis/differentialdiagnosis.html http://surgpathcriteria.stanford.edu/softfib/palmar_fibromatosis/differentialdiagnosis.html]. Accessed on: 9 November 2012.</ref> | DDx:<ref name=standford_pf_ddx>URL: [http://surgpathcriteria.stanford.edu/softfib/palmar_fibromatosis/differentialdiagnosis.html http://surgpathcriteria.stanford.edu/softfib/palmar_fibromatosis/differentialdiagnosis.html]. Accessed on: 9 November 2012.</ref> | ||
*[[Calcifying aponeurotic fibroma]] - calcification, chondroid differentiation, usu. < 20 years old. | *[[Calcifying aponeurotic fibroma]] - calcification, chondroid differentiation, usu. < 20 years old. | ||
*Extra-abdominal desmoid [[fibromatosis]] - extremely rare on hands and feet, muscle infiltrative. | *Extra-abdominal desmoid [[fibromatosis]] - extremely rare on hands and feet, muscle infiltrative. | ||
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- PALMAR FIBROMATOSIS. | - PALMAR FIBROMATOSIS. | ||
</pre> | </pre> | ||
====Micro==== | |||
The sections show multiple poorly demarcated nodules composed of bland spindle cells with pale grey cytoplasm and pale ellipsoid nuclei with small round nucleoli. The nodules are surrounded by dense collagen. Calcification is not present. There is no nuclear atypia or necrosis. | |||
==Angiomyoma== | ==Angiomyoma== | ||