British Society of Toxicological Pathology

Intestine

Normal small intestine

Caudal Vertebra

H&E Cross-section through caudal vertebra (if you click on the picture you will see the full image)

Mammary adenocarcinoma

haematoxylin and eosin, showing anisokaryosis of the epithelial cells with a rim of more basophilic cytoplasm at the periphery of the hepatocytes. Brown pigment is also visible. x40.

Mammary adenocarcinoma

Pan cytokeratin immunohistochemistry showing positive epithelial membrane and cytoplasmic staining.

Normal pancreas

peripheral nerve staining positive with PgP9.5 immunohistochemistry. x40

Brain

positive Fluoro-Jade C staining

Brain

oligodendroglioma x 200

Tibial nerve

Degeneration, x40

Bladder

Urothelial hyperplasia x 5

Glandular stomach

eosinophilic chief cells x 20 obj

Liver

cytoplasmic alteration characterised by a very finely granular, pale eosinophilic central area (ground glass appearance) with a rim of more basophilic cytoplasm at the periphery of the hepatocytes. Brown pigment is also visible. x40.

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Welcome to the website of the British Society of Toxicological Pathology. Here you will find information about all of the Society’s activities in Education, Continuing Professional Development and interaction with Regulatory Agencies, as well as links to our various Sister Societies and other partners. For members of the Society we also have a members-only section containing other information. If you have any comments about the website or ideas for new content please contact our webmaster through the secretariat.

37th Annual Scientific Meeting of the BSTP

April 28, 2022

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37th Annual Scientific Meeting of the BSTP – Digital Pathology and Mouse Pathology Workshop Thursday 10th & Friday 11th November 2022 Harrogate, North Yorkshire, UK Continuing Professional Development: Royal Society of Biology CPD credits have been applied for. <<...

In Memoriam

March 24, 2022

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John Ishmael - 2022 It was with sadness that we learned of the death of John Ishmael, who was a supportive and active member of the BSTP. John was the head of pathology at Syngenta's (formerly Zeneca and ICI) Central Toxicology Laboratory in Cheshire, mentored many colleagues in...

INHAND Update

January 25, 2022

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The INHAND Project (International Harmonization of Nomenclature and Diagnostic Criteria for Lesions) is a joint initiative of the STP, BSTP, ESTP and JSTP to develop an internationally-accepted nomenclature for proliferative and non-proliferative lesions in laboratory animals. ...

AIT News

January 18, 2022

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The AIT hopes you are all keeping safe and well. If you would like a copy of the minutes from our recent Annual General Meeting (AGM) held early in December 2021 please email...

Call for Papers – Toxicologic Pathology

March 16, 2021

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Toxicologic Pathology is pleased to announce the publication of a special issue in 2022 focusing on The Pathobiology of Nonhuman Primates Toxicologic Pathology is the premier journal in the field and reaches the leading authorities and decision makers. This is your opportunity to...