Journals / Ankara Üniversitesi Veteriner Fakültesi Dergisi / 2018 / Cilt: 65 - Sayı: 4

Histopathological and immunohistochemical evaluation of congenital cutaneous melanomas in calves (3 cases)

Buzağılarda kongenital deri melanomlarının histopatolojik ve immunohistokimyasal olarak değerlendirilmesi (3 vaka)

Pages
425–432
Publication Date
2022-10-12
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Nevertheless, neoplasms originating from melanocytes always need advanced imaging techniques along with histopathological and immunohistochemical examination while assessing biological behavior of the tumour.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Three male calves with a dark mass, hanging down on the skin at various parts of the body, were presented for clinical examination.
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Key Findings & Data:All masses were present at the birth of the calves and their size increased with time.
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Conclusion & Impact:Nevertheless, neoplasms originating from melanocytes always need advanced imaging techniques along with histopathological and immunohistochemical examination while assessing biological behavior of the tumour.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Three male calves with a dark mass, hanging down on the skin at various parts of the body, were presented for clinical examination. All masses were present at the birth of the calves and their size increased with time. The masses were extirpated by a routine surgical operation and presented for histopathological examination. Tumour cells having cytoplasmic melanin granules showed a round or spindle-shaped nuclei. The mean mitotic rate was 5-7 at a high power field. Neoplastic melanocytes displayed an evident cytoplasmic immunolabeling to Melan A, HMB-45, S-100, NSE, and Vimentin. Tumour cells showed a nuclear positivity for Ki-67. Nuclear pleomorphism and a high mitotic rate along with the positive reaction of neoplastic cells to the melanocytic markers were indicative of melanoma. Nevertheless, neoplasms originating from melanocytes always need advanced imaging techniques along with histopathological and immunohistochemical examination while assessing biological behavior of the tumour.

Özet

Vücutlarının farklı bölgelerindeki deri üzerinde siyah kitle bulunan 3 erkek buzağı klinik olarak muayene edildi. Kitlelerin doğumla beraber görüldüğü ve zamanla büyüdükleri bildirildi. Tüm kitleler rutin cerrahi yolla alındı ve histopatolojik olarak değerlendirildi. Tümör kitlelerinin yuvarlak veya iğsi çekirdekli hücrelerden oluştuğu ve sitoplazmalarının melanin granülleri ile dolduğu görüldü. Mitoz oranı yüksek büyütmede ortalama 5-7 olarak belirlendi. Neoplastik melanositlerde Melan A, HMB-45, S-100, NSE ve vimentin için sitoplazmik reaksiyon görüldü. Yine tümör hücreleri Ki-67 nükleer pozitif reaksiyon gösterdi. Nükleer pleomorfizim ve yüksek mitotik oranla birlikte, tümör hücrelerinin melanositik markırlara karşı pozitif reaksiyonu kitlelerin melanom olduğunu göstermiştir. Bununla birlikte, melanosit kökenli tümörlerin biyolojik karakterinin belirlenmesinde ileri görüntüleme teknikleri ile birlikte histopatolojik ve immunohistokimyasal değerlendirmeler yapılmalıdır.

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Cite This Article

BEYTUT, E., KILIÇ, E. (2022). Histopathological and immunohistochemical evaluation of congenital cutaneous melanomas in calves (3 cases). Ankara Üniversitesi Veteriner Fakültesi Dergisi, Cilt: 65 - Sayı: 4, 425–432. https://ajindex.com/articles/444584

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