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Peer-reviewed veterinary case report

Cats with sudden belly hair loss linked to internal cancer

By Pascal-Tenorio, Aurea et al.·Published in Veterinary dermatology·1997·*Veterinary Medical Teaching Hospital, United States·View original on PubMed

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Original publication title: Paraneoplastic alopecia associated with internal malignancies in the cat.

Species:
cat

Plain-English summary

Four cats were brought in with shiny, symmetrical bald patches on their bellies, along with weight loss and lethargy. Skin tests showed significant hair follicle damage, and it was discovered that three of the cats had metastatic pancreatic cancer, while one had bile duct cancer. This condition, known as paraneoplastic alopecia, is linked to internal cancers in cats. Unfortunately, the prognosis for these cats is often poor due to the underlying malignancies. Treatment typically focuses on managing symptoms and providing supportive care.

People also search for: cat weight loss and lethargy · cat belly bald patches · cat cancer symptoms · paraneoplastic alopecia in cats · cat skin problems and cancer

Abstract

Abstract  A paraneoplastic alopecia associated with internal malignancy is reported in four cats. Acute, bilaterally symmetrical, ventral glistening alopecia, weight loss and lethargy were present in all cats. Skin biopsy specimens exhibited severe follicular and adnexal atrophy with follicular miniaturization, minimal inflammation and, in many cases, absence of stratum corneum. At the time of díagnosis, three cats had a metastatic pancreatic adenocarcinoma and one had a bile duct carcinoma. This report confirms, and expands upon the previous report of a syndrome associating ventral alopecia and metastatic visceral carcinomas in cats. Résumé- Une alopécie paranéoplasique associée à une tumeur interne maligne est observée sur 4 chats. Les symptômes sont caractérisés par une alopécie symétrique et bilatérale sur le ventre avec un aspect brillant et lisse, un amaigrissement, une lethargic Les lésions histopathologiques sont caractérisées par une atrophie folliculaire et annexielle avec des petits follicules pileux, une inflammation dermique discréte et dans beaucoup de cas, une absence du stratum corneum. Trois chats présentent un adénocarcinome pancréatique métastasé et un chat un cholangiocarcinome. Ces cas confirment l'existence d'un syndrome associant une alopécie ventrale et des carcinomes viscéraux métastatiques chez le chat. [Pascal-Tenorio, A., Olivry, T., Gross, T. L., Atlee, B. A., Ihrke, P. J. Paraneoplastic alopecia associated with internal malignancies in the cat. (Alopécie paranéoplasique associée à des tumeurs malignes internes chez le chat.) Veterinary Dermatology 1997; 8: 47-52.] Resumen  Se describe en cuatro gatos una alopecia paraneoplasica asociada a procesos malignos internos. Todos los gatos presentaban una alopecia bilateral, simétrica, ventral, de aspecto brillante, pérdida de peso y letargia. Las biopsias cutáneas mostraron atrofia folicular y adnexal marcada, miniaturización de foliculos, inflamación minima y, en muchos casos, ausencia del estrato córneo. En el momento del díagnóstico, tres de los gatos tenian un adenocarcinoma metastático y uno tenia un carcinoma de conducto biliar. Este articulo confirma y amplia un informe previo sobre el sindrome de alopecia ventral y carcinomas viscerales metastáticos en gatos. [Pascal-Tenorio, A., Olivry, T., Gross, T. L., Atlee, B. A., Ihrke, P. J. Paraneoplastic alopecia associated with internal malignancies in the cat. (Alopecia paraneoplasica asociada a procesos malignos internos en el gato.) Veterinary Dermatology 1997; 8: 47-52.] Zusammenfassung- Es wird über eine paraneoplastische Alopezie in Verbindung mit inneren malignen Prozessen bei vier Katzen berichtet. Bei alien Katzen traten eine akute bilateral symmetrische ventrale Alopezie, Gewichtsverlust und Lethargie auf. Die Hautbiopsien zeigten eine schwere follikuläre und adnexale Atrophie mit follikulärer Miniaturisation, geringer Entzündung und in vielen Fallen ein Fehlen des Stratum corneum. Zum Zeitpunkt der Diagnose litten drei Katzen an einem metastasierenden Adenokarzinom des Pankreas und eine Katze an einem Gallengangskarzinom. Dieser Bericht erhärtet und erweitert den früheren Bericht über ein Syndrom, das ventrale Alopezie in Verbindung mit metastasierenden Eingeweidekarzinomen bei der Katze beschreibt. (Paraneoplastische Alopezie in Verbindung mit inneren malignen Prozessen bei der Katze.) Veterinary Dermatology 1997; 8: 47-52.].

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/34645026/