Primary tonsillar mast cell tumour in a dog

Shekell, CC; Thomson, MJ; Ri, Miller; Jt, Mackie

doi:10.1111/avj.12693

Cited by 8 publications

(11 citation statements)

References 21 publications

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“…A case report describes a rare oral mucosal mast cell tumour in a dog, which is the first report of a mast cell tumour in a tonsil location . The tumour was less aggressive than previous reports of oral mucosal tumours would suggest, and the case was treated with surgical excision of the tumour with no adjuvant chemotherapy or radiation.…”

Section: Small Animalsmentioning

confidence: 87%

In this issue – May 2018

Jackson¹

2018

Aust Veterinary J

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Section: Small Animalsmentioning

confidence: 87%

In this issue – May 2018

Jackson¹

2018

Aust Veterinary J

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“…[22][23][24] Occasional rare tumour types can be diagnosed. 25 The current report describes two cases of primary tonsillar HS, their clinical presentation and outcome.…”

Section: Introductionmentioning

confidence: 97%

“…Tumours affecting the palatine tonsils are rare in dogs and the most common diagnoses are squamous cell carcinoma, melanoma and lymphoma 22–24. Occasional rare tumour types can be diagnosed 25…”

Section: Introductionmentioning

confidence: 99%

Primary tonsillar histiocytic sarcoma in two dogs

Llanos

Lara

Elliott³

2020

Vet Record Case Reports

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An eight-year-old, female-spayed Golden Retriever was presented with a tonsillar mass, which was diagnosed as histiocytic sarcoma (HS), following tonsillectomy. Clinical staging revealed no regional lymph node or distant metastasis. Following adjuvant lomustine treatment, the patient remains alive with no evidence of tumour recurrence 18 months after diagnosis. Additionally, a five-year-old, male-entire Golden Retriever presented with an enlarged retropharyngeal lymph node was also diagnosed with HS. A primary tonsillar mass, extensive regional lymph node involvement and suspected early pulmonary metastasis were discovered following clinical staging. After a cytoreductive surgery and no adjuvant chemotherapy, the dog was euthanased two months following diagnosis with progressive distant metastasis. To the authors’ knowledge, this is the first report documenting primary tonsillar HS in the dog. This case report illustrates an excellent outcome of a dog with localised HS following surgery and adjuvant chemotherapy. However, prognosis remains guarded for dogs with disseminated disease, especially when chemotherapy is not used.

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“…1 Individual tonsillar neoplasia case reports in dogs include benign polyps, cysts, a plasmacytoma and a mast cell tumour (MCT). [6][7][8][9][10] Only melanoma has been mentioned to metastasize to the tonsils in dogs, without citation to literature. 11 Specific to human tonsillar melanomas, the presence or absence of junctional activity in the adjacent mucosa on histopathology can differentiate between primary vs metastatic melanoma, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…Lymphoma is reported to classically consists of bilateral tonsil involvement along with diffuse lymphadenopathy 1 . Individual tonsillar neoplasia case reports in dogs include benign polyps, cysts, a plasmacytoma and a mast cell tumour (MCT) 6‐10 . Only melanoma has been mentioned to metastasize to the tonsils in dogs, without citation to literature 11 .…”

Section: Introductionmentioning

confidence: 99%

Canine tonsillar neoplasia and tonsillar metastasis from various primary neoplasms

Mickelson

Regan

Randall

et al. 2020

Vet Comparative Oncology

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Tonsillar metastasis from distant primary tumours has not been described in dogs, and reports are rare in humans. The aims of this study were to determine whether tumour metastasis occurs to the canine palatine tonsils and evaluate whether afferent lymphatics drain to the palatine tonsils via skull indirect computed tomography lymphangiography (ICTL). Retrospective review of the diagnostic laboratory tonsillar histopathology submissions was performed. ICTL studies (n = 53) were retrospectively reviewed by a single radiologist. Of 882 total tonsil histopathology samples, 492 (56%) were considered neoplastic, with 8% of them benign. Of the primary malignant neoplasms of the tonsil, squamous cell carcinoma (55%), lymphoma (17%) and melanoma (12%) were most common. Tonsillar metastasis was confirmed in 41 cases; histopathologic evaluation revealed melanoma (25), carcinoma (10), hem

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Primary tonsillar mast cell tumour in a dog

Abstract: To the authors' knowledge, no previous reports of a primary MCT of the tonsil in dogs exist in the veterinary literature.

Cited by 8 publications

References 21 publications

In this issue – May 2018

In this issue – May 2018

Primary tonsillar histiocytic sarcoma in two dogs

Canine tonsillar neoplasia and tonsillar metastasis from various primary neoplasms

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