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Watton TC, Purzycka K, Fitzgerald E. Computed tomographic findings and clinical features in dogs with canine cutaneous lymphoma: 10 cases (2007-2018). J Am Vet Med Assoc 2021; 259:1433-1440. [PMID: 34757940 DOI: 10.2460/javma.20.11.0635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To report clinical features, CT findings, treatment protocols, and outcomes for dogs in which canine cutaneous lymphoma (CCL) was diagnosed. ANIMALS 10 client-owned dogs with CCL. PROCEDURES Medical records of dogs in which a diagnosis of CCL had been made between September 2007 and July 2018 and in which CT had been performed prior to treatment were reviewed. All available CT studies were reviewed, and an anatomical reference system was developed to map observed lesions. Treatment protocols and patient outcomes were summarized. RESULTS 14 CT examinations were performed on the 10 dogs, and 9 dogs had lesions consistent with CCL on CT images. Nodular lesions were present in 8 dogs, and cutaneous or subcutaneous mass lesions were seen in 3. Well-defined, diffusely distributed, contrast-enhancing, cutaneous or subcutaneous nodules were most common; mass lesions were more variable in appearance. Nine dogs had lymphadenopathy, with the mandibular and axillary lymph nodes most commonly affected. Four dogs had confirmed nodal involvement, and 4 had confirmed visceral involvement. Nine dogs received treatment with chemotherapy, and 5 had a complete response. CONCLUSIONS AND CLINICAL RELEVANCE Results indicated that dogs with CCL may have a wide spectrum of CT findings. Many of these lesions, including affected lymph nodes, would be unlikely to be detected clinically, suggesting that CT may be a useful modality to assess the severity of disease and for guiding selection of local versus systemic treatment.
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Affiliation(s)
- Thom C Watton
- From the Queen Mother Hospital for Animals, Royal Veterinary College, North Mymms, Hertfordshire, AL9 7TA, UK
| | - Katarzyna Purzycka
- From the Queen Mother Hospital for Animals, Royal Veterinary College, North Mymms, Hertfordshire, AL9 7TA, UK
| | - Ella Fitzgerald
- From the Queen Mother Hospital for Animals, Royal Veterinary College, North Mymms, Hertfordshire, AL9 7TA, UK
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Kok MK, Chambers JK, Tsuboi M, Nishimura R, Tsujimoto H, Uchida K, Nakayama H. Retrospective study of canine cutaneous tumors in Japan, 2008-2017. J Vet Med Sci 2019; 81:1133-1143. [PMID: 31257236 PMCID: PMC6715907 DOI: 10.1292/jvms.19-0248] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Cutaneous tumors are commonly found in dogs. To date, few studies have investigated the
epidemiology of canine cutaneous tumors in Asian countries. The present study aims to
report the prevalence of canine cutaneous tumors in Japan, and assess the association of
breed, age, sex, and anatomical locations with the development of common tumor types. A
total of 1,435 cases of cutaneous tumors were examined, of which 813 (56.66%) cases were
malignant, and 622 (43.34%) were benign. Soft tissue sarcomas (18.40%), mast cell tumor
(16.24%), lipoma (9.69%), hair follicle tumors (9.34%), and benign sebaceous tumors
(8.50%) outnumbered the other tumor types. Tumors were commonly found on the head
(13.87%), hindlimb (10.52%), forelimb (8.01%), chest (5.78%), and neck (5.57%). The risk
of developing cutaneous tumors increased significantly in dogs aged 11-year and above
(P<0.001). Mixed-breed dogs (14.63%), Miniature Dachshund (9.90%),
and Labrador Retriever (8.01%) were the three most presented breeds; while Boxer, Bernese
Mountain Dog, and Golden Retriever had an increased risk of cutaneous tumor development in
comparison to mixed-breed dogs (P<0.05). Epidemiological information
from the present study will serve as a useful reference for regional veterinarians to
establish a preliminary diagnosis of canine cutaneous tumors.
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Affiliation(s)
- Mun Keong Kok
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - James K Chambers
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Masaya Tsuboi
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Ryohei Nishimura
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Hajime Tsujimoto
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Kazuyuki Uchida
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Hiroyuki Nakayama
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.,Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
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Vander Hart D, Berry CR. INITIAL INFLUENCE OF RIGHT VERSUS LEFT LATERAL RECUMBENCY ON THE RADIOGRAPHIC FINDING OF DUODENAL GAS ON SUBSEQUENT SURVEY VENTRODORSAL PROJECTIONS OF THE CANINE ABDOMEN. Vet Radiol Ultrasound 2014; 56:12-7. [DOI: 10.1111/vru.12193] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 05/04/2014] [Indexed: 11/29/2022] Open
Affiliation(s)
- Daniel Vander Hart
- Department of Small Animal Clinical Sciences; College of Veterinary Medicine; University of Florida; Gainesville FL 32610
| | - Clifford R. Berry
- Department of Small Animal Clinical Sciences; College of Veterinary Medicine; University of Florida; Gainesville FL 32610
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Behling-Kelly E, Petersen S, Muthuswamy A, Webb JL, Young KM. Neoplastic pleocytosis in a dog with metastatic mammary carcinoma and meningeal carcinomatosis. Vet Clin Pathol 2010; 39:247-52. [PMID: 20070645 DOI: 10.1111/j.1939-165x.2009.00211.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A 12-year-old female spayed Labrador Retriever was presented with a history of seizures and abnormal vocalization. Approximately 1 year before presentation, multiple mammary cysts had been surgically excised. A mammary mass was noted on physical examination, and 2 separate parenchymal brain lesions were found on imaging studies. Cerebrospinal fluid (CSF) collected from the cisterna magna was analyzed, and abnormalities included moderate pleocytosis with atypical discrete round cells that occasionally formed loose clusters. The dog was euthanized, and on necropsy a primary solid mammary carcinoma was identified as well as multiple metastatic foci in the brain with diffuse meningeal involvement. The cells in the CSF had a morphologic appearance similar to the cells in the primary mammary tumor and in the metastatic tumors in the brain. On immunostaining, cells from the primary mammary tumor, the brain tumors, and the CSF expressed cytokeratin. The CSF cells did not express CD18, CD3, or CD79a. A final diagnosis of mammary carcinoma with brain metastasis and meningeal carcinomatosis was made.
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Affiliation(s)
- Erica Behling-Kelly
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA.
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Elwood C, Devauchelle P, Elliott J, Freiche V, German AJ, Gualtieri M, Hall E, den Hertog E, Neiger R, Peeters D, Roura X, Savary-Bataille K. Emesis in dogs: a review. J Small Anim Pract 2010; 51:4-22. [PMID: 20137004 PMCID: PMC7167204 DOI: 10.1111/j.1748-5827.2009.00820.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2009] [Indexed: 11/26/2022]
Abstract
Emesis is a common presenting sign in small animal practice. It requires a rational approach to management that is based upon a sound understanding of pathophysiology combined with logical decision making. This review, which assesses the weight of available evidence, outlines the physiology of the vomiting reflex, causes of emesis, the consequences of emesis and the approach to clinical management of the vomiting dog. The applicability of diagnostic testing modalities and the merit of traditional approaches to management, such as dietary changes, are discussed. The role and usefulness of both traditional and novel anti-emetic drugs is examined, including in specific circumstances such as following cytotoxic drug treatment. The review also examines areas in which common clinical practice is not necessarily supported by objective evidence and, as such, highlights questions worthy of further clinical research.
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Affiliation(s)
- C Elwood
- Davies Veterinary Specialists, Manor Farm Business Park, Higham Gobion, Hitchin, Hertfordshire SG5 3HR
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Dell'Orco M, Bertazzolo W, Vergine M, Ferla M, Pozzo S, Rondena M, Roccabianca P. Gastric mucinous adenocarcinoma with cutaneous metastases in a dog: diagnosis by fine-needle aspiration cytology. J Small Anim Pract 2005; 46:449-53. [PMID: 16167597 DOI: 10.1111/j.1748-5827.2005.tb00345.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A 12-year-old, intact, male mixed-breed dog was presented with anorexia, vomiting and multiple cutaneous nodules on its neck, trunk and hindlimbs. Fine-needle aspiration cytology of the nodules was characterised by a pleomorphic population of cells arranged singly or in small cohesive clusters, embedded in an amorphous mucinous material stained positive by periodic acid-Schiff (PAS). Acinar structures were occasionally found. Cells appeared either small with scant basophilic cytoplasm or large with a histiocytic appearance. Large cells had cytoplasm filled with a PAS-positive granular material. A presumptive diagnosis of cutaneous metastases of a mucinous adenocarcinoma was made. A primary, gastric, signet-ring mucinous adenocarcinoma was confirmed at postmortem examination and by histopathology. To the authors' knowledge, this is the first report of a gastric mucinous adenocarcinoma with cutaneous disseminated metastases in a dog.
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Affiliation(s)
- M Dell'Orco
- Dipartimento di Patologia Animale Igiene e Sanità Pubblica Veterinaria, Sezione di Anatomia Patologica e Patologia Aviare, Università di Milano, via Celoria, Milan, Italy
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