title: Proceedings of the 2013 Joint JSTP/NTP Satellite Symposium.
abstract: The first joint Japanese Society of Toxicologic Pathology (JSTP) and National Toxicology Program (NTP) Satellite Symposium, entitled "Pathology Potpourri," was held on January 29(th) at Okura Frontier Hotel in Tsukuba, Ibaraki, Japan, in advance of the JSTP's 29(th) Annual Meeting. The goal of this Symposium was to present current diagnostic pathology or nomenclature issues to the toxicologic pathology community. This article presents summaries of the speakers' presentations, including diagnostic or nomenclature issues that were presented, select images that were used for audience voting or discussion, and the voting results. Some lesions and topics covered during the symposium include: treatment-related atypical hepatocellular foci of cellular alteration in B6C3F1 mice; purulent ventriculoencephalitis in a young BALB/c mouse; a subcutaneous malignant schwannoma in a RccHan:WIST rat; spontaneous nasal septum hyalinosis/eosinophilic substance in B6C3F1 mice; a rare pancreatic ductal cell adenoma in a young Lewis rat; eosinophilic crystalline pneumonia in a transgenic mouse model; hyaline glomerulopathy in two female ddY mice; treatment-related intrahepatic erythrocytes in B6C3F1 mice; treatment-related subendothelial hepatocytes in B6C3F1 mice; spontaneous thyroid follicular cell vacuolar degeneration in a cynomolgus monkey; congenital hepatic fibrosis in a 1-year-old cat; a spontaneous adenocarcinoma of the middle ear in a young Crl:CD(SD) rat; and finally a series of cases illustrating some differences between cholangiofibrosis and cholangiocarcinoma in Sprague Dawley and F344 rats.
authors.affiliation: National Toxicology Program, National Institute of Environmental Health Sciences, National Institutes of Health, 111 T.W. Alexander Drive, Research Triangle Park, North Carolina 27709, USA.
authors.forename: Susan A
authors.initials: SA
authors.lastname: Elmore
authors.forename: Mark
authors.initials: M
authors.lastname: Hoenerhoff
authors.forename: Osamu
authors.initials: O
authors.lastname: Katsuta
authors.forename: Hiroko
authors.initials: H
authors.lastname: Kokoshima
authors.forename: Robert
authors.initials: R
authors.lastname: Maronpot
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Nagai
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Satoh
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Tanaka
authors.forename: Tomoaki
authors.initials: T
authors.lastname: Tochitani
authors.forename: Seiichiro
authors.initials: S
authors.lastname: Tsuchiya
authors.forename: Katsuhiko
authors.initials: K
authors.lastname: Yoshizawa
keywords: JSTP/NTP Satellite Symposium; atypical foci of cellular alteration; cholangiocarcinoma; cholangiofibrosis; congenital hepatic fibrosis; eosinophilic crystalline pneumonia; eosinophilic substance; epithelioid type of malignant schwannoma; hyaline glomerulopathy; intrahepatocytic erythrocytes; middle ear adenocarcinoma; nasal septum hyalinosis; pancreatic ductal cell adenoma; subendothelial hepatocytes; thyroid follicular cell vacuolar degeneration; ventriculoencephalitis
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