ÖzetAralık 2001'de İstanbul Üniversitesi Veteriner Fakültesi Parazitoloji Anabilim Dalma getirilen bir kedide Cheyletiella biakei enfestasyonu gözlendi. Kedide kaşıntı ve derisinde aşın kepeklenme görüldü. Kedi sahibinin kollarında kaşıntı ve kızarıklık şikayeti vardı.Anahtar kelimeler: Cheyletiella biakei, cheyletiellosis, kedi, İstanbul, Türkiye A CASE OF CHEYLETIELLOSIS IN A CAT İN İSTANBUL, TURKEYSummaryCheyletietla biakei infestation was observed in a 3-years-old persian cat, which was brought to the Parasitology Department of Veterinary Faculty of Istanbul University in December 2001. The cat was suffering from itch and had excessive dandruff flaking on the skin. Its owner also had pruritic dermatitis on his arms.Key words: Cheyletiella biakei, cheyletiellosis, cat, İstanbul, Turkey