phosphotungstic acid hematoxylin

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phos·pho·tung·stic ac·id he·ma·tox·y·lin (PTAH),

a stain with broad application in cytology and histology; nuclei, mitochrondria, fibrin, neuroglial fibrils, and cross-striations of skeletal and cardiac muscle stain blue; cartilage ground substance, bone reticulum, and elastin appear in shades of yellow-orange and brownish red; also useful for demonstrating abnormal or diseased astrocytes, often in combination with periodic acid-Schiff stain and Luxol fast blue.

phos·pho·tung·stic ac·id he·ma·tox·y·lin

(PTAH) (fos'fō-tŭng'stik as'id hē'mă-toks'i-lin)
A stain with broad application in cytology and histology; nuclei, mitochrondria, fibrin, neuroglial fibrils, and cross-striations of skeletal and cardiac muscle stain blue; cartilage ground substance, bone reticulum, and elastin appear in shades of yellow-orange and brownish red; also useful for demonstrating abnormal or diseased astrocytes, often in combination with periodic acid-Schiff stain and Luxol fast blue.
Synonym(s): Mallory phosphotungstic acid hematoxylin stain.
References in periodicals archive ?
The phosphotungstic acid haematoxylin (PTAH) staining is useful to exhibit numerous small, dark blue to black granule of mitochondria.
6: Immunohistochemical staining of embryonal rhabdomyosarcoma with phosphotungstic acid haematoxylin. [Figure omitted]

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