Myxosarcoma Associated with the Kidney in a Cat: Case Report

Madere, Brittany Champagne; Dedeaux, Andrea; Watanabe, Tatiane Terumi Negrão; Wakamatsu, Nobuko; Gaschen, Lorrie; Bennett, R. Avery; Lara, D. Garrote; Boudreaux, Bonnie

doi:10.5326/jaaha-ms-6863

Cited by 5 publications

(15 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The owners last reported that the patient had been doing well at 6 months post‐surgery, and the cat was lost to follow‐up thereafter 12 . A similar clinical outcome was observed in a case report of a feline perirenal/renal myxosarcoma 11 . A 12‐year‐old spayed female domestic shorthaired cat presented for evaluation of a large and firm palpable mass in its cranial abdominal cavity.…”

Section: Discussionsupporting

confidence: 75%

“…Positive immunoreactivity to vimentin and negative immunoreactivity to cytokeratin of the neoplastic cells confirmed a mesenchymal origin, and based on these collective findings, a diagnosis of a well‐differentiated renal myxosarcoma was made. Fourteen months postoperatively, no evidence of metastatic disease or tumor recurrence were seen in this patient based on repeated staging diagnostics that included thoracic radiographs and an abdominal ultrasound 11 …”

Section: Discussionmentioning

confidence: 81%

“…Myxosarcomas have been reported in dogs to occur in multiple anatomical locations, yet reports describing myxosarcomas in cats are much more limited. To the authors' knowledge, there are only two reports available on feline myxosarcoma 11,12 . One report describes a cat diagnosed with a hindlimb myxosarcoma 12 .…”

Section: Discussionmentioning

confidence: 99%

“…[3][4][5][6][7][8][9][10] There are at least two reports available on myxosarcomas in cats, which describe one myxosarcoma arising from the kidney and one arising from the hindlimb musculature. 11,12 Both reports describe different tumor locations (muscle and kidney) and survival (both cats alive at 6 and 14 months after surgery). 11,12 Thus in order to better characterize the biological behavior and expected prognosis of myxosarcoma in felines, additional cases need to be evaluated and reported.…”

Section: Introductionmentioning

confidence: 99%

“…11,12 Both reports describe different tumor locations (muscle and kidney) and survival (both cats alive at 6 and 14 months after surgery). 11,12 Thus in order to better characterize the biological behavior and expected prognosis of myxosarcoma in felines, additional cases need to be evaluated and reported. The current report describes the clinicopathologic findings of the first documented case of a myxosarcoma arising from the hypaxial musculature in a cat.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Retroperitoneal myxosarcoma in a cat

Hixson

Coutermarsh-Ott

Ciepluch

et al. 2022

Clinical Case Reports

View full text Add to dashboard Cite

show abstract

Section: Discussionsupporting

confidence: 75%

Section: Discussionmentioning

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Retroperitoneal myxosarcoma in a cat

Hixson

Coutermarsh-Ott

Ciepluch

et al. 2022

Clinical Case Reports

View full text Add to dashboard Cite

show abstract

Clinical outcomes in cats with renal carcinoma undergoing nephrectomy: A retrospective study

Kenny

Cook

Lenz

et al. 2023

Vet Comparative Oncology

View full text Add to dashboard Cite

Renal carcinomas (RC) are uncommonly encountered in feline medicine. Limited information regarding clinical presentation and postoperative outcomes is available. The purpose of this multi‐institutional, retrospective study was to describe the presenting features and clinical outcomes of cats with RC undergoing nephrectomy. Thirty‐six client‐owned cats were included. Medical records from participating institutions were searched to identify cats that had a histopathologic diagnosis of RC and underwent nephrectomy from January 2001 to October 2021. The most common presenting complaints were weight loss (36.1%) and hyporexia (30.6%). Based on preoperative imaging and intraoperative findings, eight cats had suspected metastasis at the time of surgery (22.2%). Twenty‐eight cats survived to discharge (77.8%). Median progression free interval (PFI) could not be determined, as only six cats developed suspected recurrence (16.7%) and seven cats developed suspected metastasis (19.4%). The all‐cause median survival time (MST) was 203 days (95% confidence interval [CI]: 84, 1379 days). When cases that died prior to discharge were excluded, MST increased to 1217 days (95% CI: 127, 1641 days). One‐year, two‐year, and three‐year survival rates were all 40.4%. Neither renal tumour histologic subtype nor the presence of preoperative azotemia, anaemia, erythrocytosis, haematuria, or suspected metastasis at diagnosis were found to influence survival. For cats surviving to discharge, prolonged survival times were possible. Further studies are necessary to elucidate other potential prognostic factors, the utility of postoperative adjuvant treatment, and to identify cats at‐risk of mortality in the perioperative period.

show abstract

Presumed myxosarcoma in the eyelid of a cat: Case report

Araújo,

Carvalho,

Moreira

et al. 2024

Veterinary Ophthalmology

View full text Add to dashboard Cite

ObjectiveTo describe the clinical and pathological characteristics of a neoformation suggestive of myxosarcoma in a cat's eyelid.Animal StudiedAn 11‐year‐old mixed‐breed castrated female cat presented with a nodule on the lower eyelid approximately 1.6 cm in diameter, multilobulated, non‐ulcerated, soft, and adhered to both the skin and conjunctiva of the lower eyelid.ProceduresThe incisional biopsy revealed findings suggestive of a peripheral nerve sheath tumor. After performing an exenteration of the right eyeball to ensure a safe surgical margin, the tissue samples were sent for histopathological analysis and later for immunohistochemistry.ResultsMicroscopic evaluation classified the mass as a grade‐I mesenchymal neoplasm, suggesting myxosarcoma and malignant peripheral nerve sheath tumor as differential diagnoses. An immunohistochemical examination was carried out to differentiate the neoplasm. Once tumors of neural origin were excluded, the diagnosis of myxosarcoma was indicated as the most likely.ConclusionWe report a presumed case of eyelid myxosarcoma in a cat, highlighting its relevance in the differential diagnosis in the evaluation of eyelid and conjunctival neoplasms in cats.

show abstract

Myxosarcoma Associated with the Kidney in a Cat: Case Report

Cited by 5 publications

References 6 publications

Retroperitoneal myxosarcoma in a cat

Retroperitoneal myxosarcoma in a cat

Clinical outcomes in cats with renal carcinoma undergoing nephrectomy: A retrospective study

Presumed myxosarcoma in the eyelid of a cat: Case report

Contact Info

Product

Resources

About