Cat-scratch disease (CSD) is an infectious disease, presenting with chronic inflammation of lymph nodes that drain the portal of entry of the causative organism in immunocompetent persons. It may also manifest as encephalitis, neuroretinitis, granulomatous conjunctivitis, hepatosplenic involvement, or pneumonia and thrombocytopenic purpura in immunocompromised patients. A 50-year-old, previously healthy woman was evaluated for symptoms of cough, fever, and arthralgia. She had history of surgery for hydatid cyst (liver) 4 years earlier and 1 year of Deltacortril use for rheumatoid arthritis. Nodular formations were observed in the right anterior upper lobe, right middle lobe, and right inferior posterobasal lobe on chest tomography image. Laboratory analysis revealed no abnormal findings except leukocytosis. Aerobic culture and EZN staining of sputum were negative. The patient underwent diagnostic video-assisted thoracoscopic surgery. Pathological results were reported as granulomatous disease, excluding tuberculosis and sarcoidosis, and indicating likely CSD, presenting with polymorphonuclear leukocytes in the granulomas. Key words: Pulmonary nodule, Cat Scratch Disease, immunocompromised. ÖzetKedi tırmığı hastalığı, bağışıklık sistemi normal kişiler-de, giriş yerinin drene olduğu lenf düğümlerinde kronik inflamasyonla seyreden bir infeksiyondur. Bağışıklık sistem baskılanmış olan hastalarda ensefalit, nöroretinit, granülomatöz konjunktivit, hepatosplenik tutulum, pnömoni ve trombositopenik purpura gibi klinik tablolar şeklinde de ortaya çıkabilir. Elli yaşında kadın hasta öksürük, ateş, eklem ağrısı nedeni ile değerlendirildi. Özgeçmişinde dört yıl önce karaciğer kist hidatiği nedeni ile operasyon ve romatoid artrit nedeni ile bir yıldır deltakortil kullanımı mevcuttu. Toraks tomografisinde sağ alt lob superiyor ve üst lobta nodul saptandı. Laboratuvar incelemesinde lökositoz dışında anormallik saptanmadı. Balgam aerob kültür ve ARB incelemesi negatif olarak saptandı. Hastaya tanısal VATS uygulandı. Patoloji sonucu granülomlar içinde polimorf nüveli lokositler, tbc ve sarkoidoz dışı granülomatöz hastalık ön planda kedi tırmığı hastalığı olarak raporlandı.Anahtar Sözcükler: Pulmoner nodul, Kedi tırmığı, bağışıklık baskılanmış.
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