Case 1 (half of lesion) (frozen section, toluidine blue stain). Diagnosis: tubular apocrine adenoma.
Case 1 (frozen, toluidine blue) - Crystals are polarizable. Diagnosis: tubular apocrine adenoma.
Case 1 (other half of lesion)(submitted in GTF formalin alternative, routine H&E). Diagnosis: tubular apocrine adenoma.
Case 1 (GTF fixed, H&E) - Same lesion as toluidine blue, but the polarizable crystals are no longer seen. Diagnosis: tubular apocrine adenoma.
Case 2 (formalin fixed, routine H&E). Diagnosis: Apocrine hidrocystoma.
Case 2 (formalin, H&E) - Crystals are polarizable. Diagnosis: Apocrine hidrocystoma.
Case 3 (formalin fixed, routine H&E). Diagnosis: tubular apocrine adenoma.
Case 3 (formalin, H&E) - Crystals are polarizable. Diagnosis: tubular apocrine adenoma.