A case of generalized tuberculosis in a domestic pigeon

Öz

In this study, a case of generalized tuberculosis diagnosed in a 3-4 aged, female, domestic pigeon brought to … for necropsy was described. At the anamnesis, weakness, anorexia, puffy and ruffled feathers that started 3-4 months ago were stated. At necropsy, the animal was excessively cachectic, the feathers were fluffy, irregular and the feathers around the anus was contaminated with feces. Gross examination revealed numerous yellowish-grey colored nodules, some of which were combined with each other, ranging in size from 0,5 to 1,5 cm localized all internal organs serosal surface such as lung, liver, pericardium and intestines. Tissue samples taken from the lesions were examined histopathologically after routine tissue processing. Microscopical examination revealed that typical tubercles with prominent caseification necrosis in the centers of the foci, numerous mononuclear inflammatory giant cells around them and surrounded by connective tissue. A large number of mycobacterial agents were observed as red stained bacilli on sections stained with the Ziehl-Neelsen method. Diagnosis of tuberculosis was made in the light of gross and histopathological findings.

Anahtar Kelimeler

• Pigeon
• tuberculosis
• necropsy
• histopathology
• Ziehl-Neelsen method

Evcil bir güvercinde generalize tüberküloz olgusu

Öz

Bu olguda … Anabilim Dalına nekropsi için getirilen 3-4 yaşlı, dişi, evcil bir güvercinde saptanan generalize tüberküloz olgusu tanımlandı. Hayvan sahibinden alınan anemnez de 3-4 ay önceden başlayan halsizlik, iştahsızlık, durgunluk, tüylerde kabarma ve zayıflık bulguları belirtildi. Nekropside hayvanın aşırı kaşektik olduğu, tüylerin kabarık ve karışık, anüs çevresindeki tüylerin ise dışkı ile bulaşık olduğu gözlendi. İç bakıda akciğer, karaciğer, perikart ve bağırsak serozalarında yoğun olmak üzere tüm iç organlarda büyüklükleri 0,5-1,5 cm arasında değişen bazıları birbirleri ile birleşmiş şekilde çok sayıda sarımsı-gri renkli nodüler yapılar saptandı. Lezyonlu doku örnekleri rutin takip işleminden geçirilerek histopatolojik olarak incelendi. Mikroskobik incelemede odakların merkezlerinde belirgin kazeifikasyon nekrozu, çevrelerinde çok sayıda mononüklear yangı ve dev hücrelerinin bulunduğu ve etrafları bağ doku ile çevrili tipik granülomlar saptandı. Ziehl-Neelsen metoduna göre boyanan kesitlerde kırmızı basiller şeklinde çok sayıda mycobacterial etkenler gözlendi. Makroskobik ve histopatolojik bulgular ışığında olguya tüberküloz teşhisi konuldu.

Anahtar Kelimeler

• Güvercin
• tüberkülozis
• nekropsi
• histopatoloji
• Ziehl-Neelsen metodu.

Kaynakça

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