Table of ContentsDefinition / General | Terminology | Micro Description | Positive Stains | Negative Stains | Differential Diagnosis
Cite this page: Sarcoma NOS. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/breastmalignantsarcomaNOS.html. Accessed January 18th, 2017.
Definition / General
- A diagnosis of exclusion
- Extensive tumor sampling and immunostaining are required before making this diagnosis
- Not part of WHO breast classification
- Spindle cells with markedly pleomorphic nuclei and abundant mitotic figures (Am J Surg Pathol 2006;30:450)
- By definition, no evidence of carcinoma or a specific type of sarcomatous differentiation