E) Mucin production by neoplastic cells was confirmed by toluidine blue (not shown) and acid mucicarmine
histochemical stains (arrows) (acid mucicarmine
Moreover, YST cell cytoplasm may stain with PAS due to glycogen content but never with mucicarmine
stains acidic sialomucins.
The use of the mucicarmine
stain for a rapid presumptive identification of Cryptococcus from culture.
Histochemical stains showed negative staining for PAS with diastase predigestion (dPAS), and in a few epithelial cases, mucicarmine
stained focal areas.
F, Same case as E, with intracytoplasmic vacuoles that lack mucin and should be mentally subtracted for grading (hematoxylin-eosin, original magnifications X10 [A], X40 [B and C], and X20 [D and E]; mucicarmine
, original magnification X40 [F]).
seeberi sporangia and endospores are larger than Coccidioides spherules, and its inner sporangial wall stains with mucicarmine
Metastatic adenocarcinoma show cytological features of malignancy and cells are positive for mucicarmine
9 Pancreas/Bile Duct/ Urothelium CD 68 Histiocytes Mucicarmine
Mucin-Producing Cells Summary of immunohistochemical markers that stained focally positive in this case.
The organisms stained faintly with Giemsa and were negative by Grocott methenamine silver, periodic acid-Schiff, and mucicarmine
Histologic staining indicates these tumors to be positive for periodic acid-Schiff, mucicarmine
, and Alcian blue.
The tissue biopsies obtained were processed and the slides stained with H and E and wherever necessary with special stains like Periodic Acid-Schiff, Mucicarmine