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. 2021 Feb 18;80(6):714–726. doi: 10.1136/annrheumdis-2020-219247

Table 5.

Compatibility of decalcification agents with staining methods

Compatibility of staining
Decalcification H&E TRAP Toluidine blue Safranin O IHC
EDTA Highly Highly Highly Less35 Highly
Formic acid Highly Less* Highly Highly Not compatible with some epitopes31 36 38

*Expert experiences.

IHC, immunohistochemistry; TRAP, tartrate-resistant acid phosphatase.