PMID: 19915332Nov 17, 2009Paper

Histiocytic sarcoma in the brain of a cat

The Journal of Veterinary Medical Science
Tetsuya IdeHiroyuki Nakayama

Abstract

A mass lesion in the subependymal region of the lateral ventricle in a 13-year-old neutered male mongrel cat with a complaint of somnolence, right circling movement and posture abnormality was examined. The magnetic resonance image examination revealed a relatively large T1-hypointense and T2-hyperintense mass lesion in the left interventricular foramen region, and there were no abnormalities in the chest and abdominal x-ray radiographic, funduscopic, and electric retinogram findings. The cat was died 43 days after the initial referral, and the post-mortem examinations revealed a poorly demarcated subependymal mass. Histologically, the brain lesion consisted of complex proliferation of highly pleomorphic cells resembling histiocytes with atypia and abundant mitotic figures. Moderate infiltrates of small reactive lymphocytes were admixed with the pleomorphic cell population. Gemistcytic astrocytes were also intermingled with the periphery of neoplastic foci. Immunohistochemically, most of the pleomorphic cells were positive for HLA-DR alpha-chain and ionized calcium binding adaptor molecule 1, and few were positive for lysozyme and alpha-1 antichymotrypsin. The atypical pleomorphic cells were negative for CD3, IgG (H and L), gli...Continue Reading

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Citations

Sep 19, 2012·The Journal of Veterinary Medical Science·Shingo MaedaHajime Tsujimoto
May 15, 2013·Journal of Medical Case Reports·Elisabeth Pérez-RuizAntonio Rueda Domínguez
May 21, 2013·Veterinary Ophthalmology·Emma ScurrellChris J Belford
Feb 11, 2015·Veterinary and Comparative Oncology·E TreggiariL Blackwood
Jan 23, 2014·Veterinary Clinical Pathology·Julia K RyseffPaul R Avery
May 14, 2014·Veterinary Clinical Pathology·Nazaré Pinto da CunhaPaola Roccabianca
Apr 24, 2012·Journal of Comparative Pathology·V M WongD Bienzle
Dec 21, 2016·Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·Antonia DeJesusJantra Ngosuwan Suran
Mar 12, 2016·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Atigan ThongtharbHiroyuki Nakayama
Feb 9, 2012·Journal of Feline Medicine and Surgery·Takahiro TeshimaHidekazu Koyama
Dec 11, 2019·The Journal of Comparative Neurology·Kristi A StreeterDavid D Fuller
Sep 4, 2019·Journal of Feline Medicine and Surgery·Elisabetta Treggiari, Laura Blackwood
Oct 28, 2019·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Margaux CosteMarie Lagadic
Jul 20, 2019·JFMS Open Reports·Miyuki HirabayashiKazuyuki Uchida
Aug 28, 2020·The Journal of Veterinary Medical Science·Iori KoizumiHirotaka Kondo
Nov 24, 2020·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Satoshi SuzukiTakuro Kariya
Dec 8, 2020·JFMS Open Reports·Slavomίra NéčováSmita Das

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