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Dussaux A, Gomes E, Hurion M, Rattez E, Mayousse V. Cerebral meningioma associated with extensive calvarium osteolysis and presumed intratumoral carcinoma metastasis in a cat. JFMS Open Rep 2022; 8:20551169221122849. [PMID: 36132420 PMCID: PMC9484047 DOI: 10.1177/20551169221122849] [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] [Indexed: 11/29/2022] Open
Abstract
Case summary A 10-year-old male neutered domestic shorthair cat presented with a 3-month
history of weight loss, dysorexia and lethargy. Neurological examination
revealed decreased mentation, absent menace response bilaterally and
proprioceptive deficits affecting all four limbs; these findings were
consistent with a forebrain disorder. Brain CT revealed an extensive
asymmetric permeative osteolysis destroying two-thirds of the circumference
of the calvarium and involving the right frontal, parietal, temporal and
occipital bones, as well as the left parietal bone. This extensive bone
lysis was associated with a large ‘plaque-like’ extra-axial
subdural/pachymeningeal lesion extending within the soft tissues surrounding
the calvarium. The cat was humanely euthanased. Post-mortem MRI was
performed, which revealed a T2-weighted (T2W) hypointense subdural lesion
and a T2W hyperintense circumferential extracranial lesion lining the right
calvarium and left parietal bone. Histopathological analysis on a
post-mortem sample of the lesion revealed a fibroblastic subtype of
meningioma. Epithelial neoplastic cells were observed scattered through the
meningioma, calvarium and surrounding muscular tissues, corresponding with
presumed metastatic carcinoma. Relevance and novel information To our knowledge, this is the first report of an intracranial meningioma
associated with such an extensive and diffuse calvarial osteolysis in
veterinary medicine. This is also the first description of presumed
metastatic inclusions (adenocarcinoma in this case) inside an intracranial
feline meningioma, which is a rare phenomenon known as tumour-to-tumour
metastasis in human medicine.
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Affiliation(s)
- Alice Dussaux
- Veterinary Hospital Centre of Cordeliers, Meaux, France
| | | | | | - Elise Rattez
- Veterinary Hospital Centre of Cordeliers, Meaux, France
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Owen TJ, Martin LG, Chen AV. Transsphenoidal Surgery for Pituitary Tumors and Other Sellar Masses. Vet Clin North Am Small Anim Pract 2017; 48:129-151. [PMID: 29056398 DOI: 10.1016/j.cvsm.2017.08.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Transsphenoidal surgery is an option for dogs and cats with functional and nonfunctional pituitary masses or other sellar and parasellar masses. An adrenocorticotropic hormone-secreting tumor causing Cushing disease is the most common clinically relevant pituitary tumor in dogs, and the most common pituitary tumor seen in cats is a growth hormone-secreting tumor causing acromegaly. Transsphenoidal surgery can lead to rapid resolution of clinical signs and provide a cure for these patients. Because of the risks associated with this surgery, it should only be attempted by a cohesive pituitary surgery group with a sophisticated medical and surgical team.
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Affiliation(s)
- Tina J Owen
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, PO Box 647060, Pullman, WA 99164-7060, USA.
| | - Linda G Martin
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, PO Box 646610, Pullman, WA 99164-6610, USA
| | - Annie V Chen
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, PO Box 646610, Pullman, WA 99164-6610, USA
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Bentley RT. Magnetic resonance imaging diagnosis of brain tumors in dogs. Vet J 2015; 205:204-16. [PMID: 25792181 DOI: 10.1016/j.tvjl.2015.01.025] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 01/19/2015] [Accepted: 01/24/2015] [Indexed: 02/02/2023]
Abstract
A great deal of information is now available regarding the range of magnetic resonance imaging (MRI) features of many primary and secondary brain tumors from dogs. In this review, these canine neoplasms are grouped into meningeal masses, ventricular masses, intra-axial enhancing lesions, intra-axial mildly to non-enhancing lesions, and multifocal lesions. For each of these patterns, the major and sporadic neoplastic differential diagnoses are provided, and guidance on how to rank differential diagnoses for each individual patient is presented. The implication of MRI features such as contrast-enhancement, signal intensities and location is discussed. However, the information garnered from MRI must be correlated with all available clinical information and with epidemiological data before creating a differential diagnosis.
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Affiliation(s)
- R Timothy Bentley
- Department of Veterinary Clinical Sciences, Purdue University, West Lafayette, IN 47907-2026, USA.
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Gutierrez-Quintana R, Carrera I, Dobromylskyj M, Patterson-Kane J, Ortega M, Wessmann A. Pituitary Metastasis of Pancreatic Origin in a Dog Presenting with Acute-Onset Blindness. J Am Anim Hosp Assoc 2013; 49:403-6. [DOI: 10.5326/jaaha-ms-5926] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Pituitary metastases have rarely been recorded in dogs, and to date, none of those reported have been of pancreatic origin. MRI findings are available for only one of those cases. Herein the authors present an 11 yr old English springer spaniel diagnosed with pituitary metastasis of pancreatic origin with a 24 hr history of blindness and only a single lesion on MRI. Neurologic and ophthalmologic examinations localized the lesion to the optic nerves, optic tracts, or optic chiasm. MRI showed a single lesion characterized by a well-circumscribed pituitary mass with extrasellar extension, causing compression of the optic chiasm. Signal intensity was unusual as enhancement could not be appreciated after contrast administration. The dog was euthanized without further diagnostic tests. Histopathologic examination revealed a poorly differentiated exocrine pancreatic carcinoma with widespread metastasis involving the pituitary gland. To the authors’ knowledge, this is the first such case reported in a dog. Pituitary metastases should be included as a differential diagnosis for dogs presenting with acute-onset blindness and for single brain masses affecting the pituitary gland.
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Affiliation(s)
- Rodrigo Gutierrez-Quintana
- Small Animal Clinical Sciences (R.G-Q., M.O., A.W.) and Institute of Infection Immunity and Inflammation (M.D., J.P-K.), College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK; Section of Diagnostic Imaging, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland (I.C.)
| | - Inés Carrera
- Small Animal Clinical Sciences (R.G-Q., M.O., A.W.) and Institute of Infection Immunity and Inflammation (M.D., J.P-K.), College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK; Section of Diagnostic Imaging, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland (I.C.)
| | - Melanie Dobromylskyj
- Small Animal Clinical Sciences (R.G-Q., M.O., A.W.) and Institute of Infection Immunity and Inflammation (M.D., J.P-K.), College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK; Section of Diagnostic Imaging, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland (I.C.)
| | - Janet Patterson-Kane
- Small Animal Clinical Sciences (R.G-Q., M.O., A.W.) and Institute of Infection Immunity and Inflammation (M.D., J.P-K.), College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK; Section of Diagnostic Imaging, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland (I.C.)
| | - Maria Ortega
- Small Animal Clinical Sciences (R.G-Q., M.O., A.W.) and Institute of Infection Immunity and Inflammation (M.D., J.P-K.), College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK; Section of Diagnostic Imaging, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland (I.C.)
| | - Annette Wessmann
- Small Animal Clinical Sciences (R.G-Q., M.O., A.W.) and Institute of Infection Immunity and Inflammation (M.D., J.P-K.), College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK; Section of Diagnostic Imaging, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland (I.C.)
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