Cat scratch disease is slow progressing disease that is mostly seen in children and young adults and is characterized with regional lymphadenopathy. It is caused by Bartonella henseleae. The causative agent is commonly transmitted from cats to human. The disease is presented with regional lymphadenopathy, fever, fatigue and weakness. A 44-year-old woman admitted to General Surgery Policlinic with right axillary mass was interned. Axillary lymphadenopathy was detected in her physical examination and the aspiration cytology was performed. It was reported that the axillary lymphadenopathy was interpreted as the suspicion of axillary lymph node involvement of breast cancer. Subsequently, the excisional biopsy of axillary lymphadenopathy was performed and the histopathological examination revealed the granulomatous lymphadenitis consistent with cat scratch disease. Cat scratch disease should be kept in mind in patients admitted with axillary lymphadenopathy without infectious findings.