1
|
Rissi DR. A review of primary central nervous system neoplasms of cats. Vet Pathol 2023; 60:294-307. [PMID: 36803009 DOI: 10.1177/03009858231155400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Primary central nervous system (CNS) neoplasms are uncommonly diagnosed in cats. The majority of primary feline CNS neoplasms described in the veterinary literature consist of meningioma and glioma occurring mainly in the brain and less often in the spinal cord. Although most neoplasms can be diagnosed based on routine histologic evaluation, less typical tumors need to be further characterized using immunohistochemistry. This review compiles the relevant information about the most common primary CNS neoplasms of cats available in the veterinary literature, aiming to serve as a converging source of information for the topic.
Collapse
|
2
|
Foiani G, Mandara MT, Carminato A, Melchiotti E, Corrò M, Vascellari M. Case report: Infratentorial Embryonal Tumor with Abundant Neuropil and True Rosettes (ETANTR) in an 8-month-old Maine Coon. Front Vet Sci 2022; 9:961056. [PMID: 36090160 PMCID: PMC9453206 DOI: 10.3389/fvets.2022.961056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 08/11/2022] [Indexed: 11/24/2022] Open
Abstract
An 8-month-old female Main Coon with a history of recurrent behavioral changes and anorexia was presented with sternal recumbency and depression. Within 5 days, the cat progressively worsened with symptoms of stupor and coma and was euthanized. At post-mortem examination, a solid, grayish infratentorial mass located in the midline rostrally to the cerebellum, was observed. Histologically, highly cellular clusters of small-to-medium undifferentiated cells were intermingled with paucicellular areas with fibrillary eosinophilic (neuropil-like) appearance. Numerous multilayered (ependymoblastic) true rosettes were present. The mitotic activity was frequent (up to 15 mitoses/HPF), involving both undifferentiated cells and rosettes. By immunohistochemistry (IHC), tumor cells were diffusely positive for vimentin, variably for synaptophysin, S-100, and NSE, and focally for NeuN; they were negative for GFAP and CK AE1/AE3. The histological and IHC aspects were consistent with an Embryonal Tumor with Abundant Neuropil and True Rosettes (ETANTR). Embryonal neoplasms of the central nervous system (CNS) are characterized by primitive undifferentiated cells, able to develop toward neuronal, glial, ependymal, and mesenchymal lines. Although extremely rare, juvenile embryonal tumors should be considered in the differentials of CNS disorders in young cats.
Collapse
Affiliation(s)
- Greta Foiani
- Laboratory of Histopathology, Istituto Zooprofilattico Sperimentale delle Venezie, SCS3, Legnaro, Italy
- *Correspondence: Greta Foiani
| | | | - Antonio Carminato
- Laboratory of Histopathology, Istituto Zooprofilattico Sperimentale delle Venezie, SCS3, Legnaro, Italy
| | - Erica Melchiotti
- Laboratory of Histopathology, Istituto Zooprofilattico Sperimentale delle Venezie, SCS3, Legnaro, Italy
| | - Michela Corrò
- Clinical Diagnostic Laboratory, Istituto Zooprofilattico Sperimentale delle Venezie, SCT3, Legnaro, Italy
| | - Marta Vascellari
- Laboratory of Histopathology, Istituto Zooprofilattico Sperimentale delle Venezie, SCS3, Legnaro, Italy
| |
Collapse
|
3
|
Francesio A, Durand A, Viora L, Orr J, Millins C, José‐López R. Clinical and magnetic resonance imaging findings of a cerebellar medulloblastoma in a heifer. Clin Case Rep 2019; 7:94-99. [PMID: 30656017 PMCID: PMC6332746 DOI: 10.1002/ccr3.1925] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 10/28/2018] [Accepted: 10/29/2018] [Indexed: 11/07/2022] Open
Abstract
Reports of medulloblastoma in cattle are scarce; however, this neoplasm should be included as a differential diagnosis in cases of cerebellar or central vestibular signs in young cattle. The MRI appearance of the medulloblastoma reported here, previously unreported in cattle, consisted of a T1-weighted hypointense and T2-weighted heterogeneously hyperintense intra-axial mass.
Collapse
Affiliation(s)
- Andrea Francesio
- Scottish Centre for Production Animal Health and Food Safety, School of Veterinary Medicine, College of Medical Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Alexane Durand
- Small Animal Hospital, School of Veterinary Medicine, College of Medical Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
- Present address:
School of Veterinary MedicineUniversity of Wisconsin‐MadisonMadisonWisconsin
| | - Lorenzo Viora
- Scottish Centre for Production Animal Health and Food Safety, School of Veterinary Medicine, College of Medical Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Jayne Orr
- Scottish Centre for Production Animal Health and Food Safety, School of Veterinary Medicine, College of Medical Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Caroline Millins
- Division of Pathology, Public Health and Disease InvestigationSchool of Veterinary Medicine, College of Medical Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Roberto José‐López
- Small Animal Hospital, School of Veterinary Medicine, College of Medical Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| |
Collapse
|
4
|
McHale B, Armién AG, Clarke LL, Rissi DR. Embryonal central nervous system tumor in the brain of a goose. J Vet Diagn Invest 2018; 31:385-389. [PMID: 30204056 DOI: 10.1177/1040638718799390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Embryonal central nervous system (CNS) tumor is a rare malignant neoplasm that arises from the neural crest. Herein we describe an embryonal tumor in the brain of an adult male domestic goose ( Anser anser) that was euthanized after a short history of wandering and lethargy. Grossly, a focal, bright-red, soft plaque was present on the ventral aspect of the brain, extending from the optic chiasm to the midbrain, as well as into the dorsal neuroparenchyma. Histologically, the nodule consisted of a poorly demarcated population of neoplastic cells arranged in streams and bundles, and occasionally palisading around small capillaries (pseudorosettes). Neoplastic cells were elongate and had scant, finely granular, eosinophilic cytoplasm, and elongate nuclei with dense chromatin. Mitoses were uncommon. Scattered foci of intratumoral necrosis and microvascular proliferation were present. Neoplastic cells were immunoreactive for doublecortin and neuronal nuclei. Ultrastructurally, neoplastic cells had elongated-to-polyhedral cytoplasm with short processes, scarce intermediate filaments, and small round mitochondria and rough endoplasmic reticulum. The cell membrane had varied numbers of intercellular anchoring-like junctions, and nuclei were round-to-elongate and had marginal aggregates of heterochromatin. Morphologic, immunohistochemical, and ultrastructural findings in our case are consistent with a poorly differentiated embryonal tumor.
Collapse
Affiliation(s)
- Brittany McHale
- Department of Pathology (McHale, Clarke, Rissi) and Athens Veterinary Diagnostic Laboratory (Rissi), University of Georgia, College of Veterinary Medicine, Athens, GA.,Veterinary Diagnostic Laboratory, Department of Veterinary Population Medicine, University of Minnesota, College of Veterinary Medicine, St. Paul, MN (Armién)
| | - Anibal G Armién
- Department of Pathology (McHale, Clarke, Rissi) and Athens Veterinary Diagnostic Laboratory (Rissi), University of Georgia, College of Veterinary Medicine, Athens, GA.,Veterinary Diagnostic Laboratory, Department of Veterinary Population Medicine, University of Minnesota, College of Veterinary Medicine, St. Paul, MN (Armién)
| | - Lorelei L Clarke
- Department of Pathology (McHale, Clarke, Rissi) and Athens Veterinary Diagnostic Laboratory (Rissi), University of Georgia, College of Veterinary Medicine, Athens, GA.,Veterinary Diagnostic Laboratory, Department of Veterinary Population Medicine, University of Minnesota, College of Veterinary Medicine, St. Paul, MN (Armién)
| | - Daniel R Rissi
- Department of Pathology (McHale, Clarke, Rissi) and Athens Veterinary Diagnostic Laboratory (Rissi), University of Georgia, College of Veterinary Medicine, Athens, GA.,Veterinary Diagnostic Laboratory, Department of Veterinary Population Medicine, University of Minnesota, College of Veterinary Medicine, St. Paul, MN (Armién)
| |
Collapse
|
5
|
Abstract
A 3-yr-old female spayed grizzly bear (Ursus arctos horribilis) was evaluated for seizure activity along with lethargy, inappetence, dull mentation, and aggressive behavior. Magnetic resonance (MR) examination of the brain revealed a contrast-enhanced right cerebellar mass with multifocal smaller nodules located in the left cerebellum, thalamus, hippocampus, and cerebrum with resultant obstructive hydrocephalus. Cerebrospinal fluid analysis revealed mild mononuclear pleocytosis, with differentials including inflammatory versus neoplastic processes. Blood and cerebrospinal fluid were also submitted for polymerase chain reaction and agar gel immunodiffusion to rule out infectious causes of meningitis/encephalitis. While awaiting these results, the bear was placed on steroid and antibiotic therapy. Over the next week, the bear deteriorated; she died 1 wk after MR. A complete postmortem examination, including immunohistochemisty, revealed the cerebellar mass to be a medulloblastoma. This is the only case report, to the authors' knowledge, describing a medulloblastoma in a grizzly bear.
Collapse
|
6
|
Bianchi E, Bombardi C, Bassi P, Bolcato M, Gentile A, Militerno G. Bilateral Trochlear Nerve Palsy as a Consequence of Cerebellar Medulloblastoma: Clinical and Pathological Findings in a Calf. J Vet Intern Med 2015; 29:1117-21. [PMID: 26110579 PMCID: PMC4895356 DOI: 10.1111/jvim.13568] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 04/15/2015] [Accepted: 05/11/2015] [Indexed: 12/18/2022] Open
Affiliation(s)
- E Bianchi
- Department of Veterinary Medical Sciences, University of Parma, Parma, Italy
| | - C Bombardi
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia, Bologna, Italy
| | - P Bassi
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia, Bologna, Italy
| | - M Bolcato
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia, Bologna, Italy
| | - A Gentile
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia, Bologna, Italy
| | - G Militerno
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia, Bologna, Italy
| |
Collapse
|
7
|
Platt SR. Vestibular Disorders. CONSULTATIONS IN FELINE INTERNAL MEDICINE 2006. [PMCID: PMC7158340 DOI: 10.1016/b0-72-160423-4/50059-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
8
|
Troxel MT, Vite CH, Van Winkle TJ, Newton AL, Tiches D, Dayrell-Hart B, Kapatkin AS, Shofer FS, Steinberg SA. Feline intracranial neoplasia: retrospective review of 160 cases (1985-2001). J Vet Intern Med 2004; 17:850-9. [PMID: 14658723 DOI: 10.1111/j.1939-1676.2003.tb02525.x] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The purpose of this study was to determine the frequency of different tumor types within a large cohort of cats with intracranial neoplasia and to attempt to correlate signalment, tumor size and location, and survival time for each tumor. Medical records of 160 cats with confirmed intracranial neoplasia evaluated between 1985 and 2001 were reviewed. Parameters evaluated included age, sex, breed, FeLV/FIV status, clinical signs, duration of signs, number of tumors, tumor location(s), imaging results, treatment, survival times, and histopathologic diagnosis. Most of the cats were older (11.3 +/- 3.8 years). Primary tumors accounted for 70.6% of cases. Metastasis and direct extension of secondary tumors accounted for only 5.6 and 3.8% of cases, respectively. Twelve cats (7.5%) had 2 or more discrete tumors of the same type, whereas 16 cats (10.0%) had 2 different types of intracranial tumors. The most common tumor types were meningioma (n = 93, 58.1%), lymphoma (n = 23, 14.4%), pituitary tumors (n = 14, 8.8%), and gliomas (n = 12, 7.5%). The most common neurological signs were altered consciousness (n = 42, 26.2%), circling (n = 36, 22.5%), and seizures (n = 36, 22.5%). Cats without specific neurological signs were common (n = 34, 21.2%). The tumor was considered an incidental finding in 30 (18.8%) cats. In addition to expected relationships (eg, meninges and meningioma, pituitary and pituitary tumors), we found that lesion location was predictive of tumor type with diffuse cerebral or brainstem involvement predictive of lymphoma and third ventricle involvement predictive of meningioma.
Collapse
Affiliation(s)
- Mark T Troxel
- Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
9
|
McConnell JF, Platt S, Smith KC. Magnetic resonance imaging findings of an intracranial medulloblastoma in a Polish Lowland Sheepdog. Vet Radiol Ultrasound 2004; 45:17-22. [PMID: 15005356 DOI: 10.1111/j.1740-8261.2004.04003.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Medullobastoma is an uncommon caudal fossa tumor. The imaging features of medullobastoma in the dog are poorly described. In this report, the magnetic resonance (MR) appearance of a cerebellar medullobastoma in a dog is described. The MR features were similar to medulloblastomas in adult humans, with the tumor arising laterally and extending to the surface of the cerebellar hemisphere. Correct localization of medulloblastoma may be difficult and it should be considered as a differential for both extra- and intra-axial caudal fossa masses.
Collapse
Affiliation(s)
- J Fraser McConnell
- Animal Health Trust, Newmarket, Centre for Small Animal Studies, Lanwades Park, Kentford, Newmarket, Suffolk CB8 7UU, UK
| | | | | |
Collapse
|