Oral and Maxillofacial Tumors, Cysts, and Tumor‐Like Lesions

Soukup, Jason W.; Lewis, John R.

doi:10.1002/9781118816219.ch7

Cited by 11 publications

(13 citation statements)

References 74 publications

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“…Malignant melanoma was the most frequently found tumor, followed by benign tumors (giant cell granuloma, peripheral odontogenic fibroma, and acanthomatous ameloblastoma), SCC, and fibrosarcoma. This result is similar to that found by the previous studies investigating the prevalence of oral tumors in dogs 2,3,17 . Most dogs in our study were small breeds which have high risk for oral malignant melanomas 9 .…”

Section: Discussionsupporting

confidence: 92%

“…Oral tumors can occur on the gingiva, tonsils, lips, palate, and tongue 6,17 . In our study, oral tumors were commonly found in the caudal maxilla, and of the malignant tumors, malignant melanoma in particular.…”

Section: Discussionsupporting

confidence: 48%

“…Oral tumors can occur on the gingiva, tonsils, lips, palate, and tongue. 6,17 In our study, oral tumors were commonly found in the caudal maxilla, and of the malignant tumors, malignant melanoma in particular. However, there was no significant difference between benign and malignant tumors and this result was compatible to previous studies.…”

Section: Discussionmentioning

confidence: 49%

“…Oral tumors can metastasize to the mandibular and cervical lymph nodes 2,10,17,19,34 . Mandibular lymph nodes drain lymph from the cheeks, lips, gums, and the rostral tongue 23 .…”

Section: Discussionmentioning

confidence: 99%

“…In addition, the anatomic location and extension of primary tumors and presence and pattern of metastasis affect the prognosis of oral tumors in dogs. Confirming the exact tumor type and extent of the lesion is essential because of the infiltrative behavior of most malignant tumors and even some benign tumors 17 . The CT features of oral tumors have been reported sporadically in a few case reports, which described palatine tonsillar neoplasia and canine oral malignant melanomas, and another study investigating the CT features of odontogenic tumors in 29 dogs 10,18,19 …”

Section: Introductionmentioning

confidence: 99%

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CT features of malignant and benign oral tumors in 28 dogs

Lee

Jang

Lee³

et al. 2021

Vet Radiology Ultrasound

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An improved understanding of the computed tomographic (CT) features for malignant versus benign oral tumors would be helpful for guiding prognosis and treatment planning decisions in dogs. This retrospective, multi-center, observational study compared the CT features of malignant and benign tumors in 28 dogs with 31 oral masses. Malignant tumors were present in 20 dogs, including malignant melanoma (n = 14), squamous cell carcinoma (SCC, n = 4), adenocarcinoma (n = 1), and fibrosarcoma (n = 1).Eight dogs had benign tumors, including giant cell granuloma (n = 2), peripheral odontogenic fibroma (n = 2), acanthomatous ameloblastoma (n = 2), plasmacytoma (n = 1), and oncocytoma (n = 1). Common CT features of malignant tumors included heterogeneous enhancement, tumor invasion into the adjacent bone, tooth loss, and ipsilateral mandibular lymphadenopathy. Malignant tumors were significantly larger than benign tumors. Bone lysis was found in benign tumors (n = 4) such as acanthomatous ameloblastoma, giant cell granuloma, and plasmacytoma. The bone lysis was a welldefined geographic area regardless of malignancy and tumor type. In periosteal reactions, amorphous patterns were seen in both malignant (n = 2) and benign tumors (n = 2); the latter subgroup also showed solid patterns. Bone expansion (n = 2) was identified in malignant melanoma and acanthomatous ameloblastoma. Findings supported a diagnosis of possible malignancy for dogs with oral tumors having the following CT characteristics: large size, heterogeneous contrast enhancement pattern, bone lysis, tooth loss, and ipsilateral lymphadenopathy. However, there was a considerable overlap of CT findings among the different types of oral tumors and between benign and malignant tumors. Histological evaluation therefore remains necessary for definitive diagnosis.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 48%

Section: Discussionmentioning

confidence: 49%

“…Oral tumors can metastasize to the mandibular and cervical lymph nodes 2,10,17,19,34 . Mandibular lymph nodes drain lymph from the cheeks, lips, gums, and the rostral tongue 23 .…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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