Hales colloidal iron
Reviewer: Nat Pernick, M.D. (see Reviewers page)
Revised: 30 September 2013, last major update June 2005
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.
PubMed Search: colloidal iron[title]
- Kidney tumors: stain must have pH between 1.5 and 2.0
- Clear cell and papillary renal carcinoma have focal, coarse, droplike staining
- Note: hemosiderin in any tumors will also stain positive
Uses by pathologists
- Helpful in distinguishing chromophobe renal cell carcinoma (intensely positive in large percentage of cells with reticular staining) from oncocytoma (usually negative; if positive - fewer cells with less intensity and dustlike staining)
End of Stains > Hales colloidal iron
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