Suppurative Lymphadenopathy Caused By Bartonella henselae Occurring in Two Siblings Simultaneously

Cat scratch disease is a zoonotic infectious disease caused by Bartonella henselae. Cat scratch disease can be transmitted from an infected cat by a scratch or bite, exposure to cat fleas, contact with impaired skin or mucosa. It is one of the most important causes of infectious lymphadenopathies and frequently occurs in 85-90% of children as cutaneous and lymph node disorders at the site of organism entry. In 25% of the affected lymph nodes, skin sensitization, erythema and suppuration with induration develops. In order of frequency, it occurs in axillary, epitrochlear, cervical, supraclavicular and submandibular lymph nodes. In addition to lymphadenopathy, the disease spreads through blood and manifests as bacteremia, fever of unknown cause, conjunctivitis, uveitis, neuroretinitis, encephalopathy, aseptic meningitis, osteolytic lesions, hepatitis, liver and spleen granuloma, endocarditis, erythema nodosum, glomerulonephritis, pneumonia, and thrombocytopenic purpura. Cat scratch disease should be considered in all patients with regional lymphadenopathy and history of cat contact. In the literature, cat scratch disease is rarely reported to be seen simultaneously in more than one member of the family. We reported the cases of two siblings with simultaneous cat scratch disease diagnosis, one with submental and the other with axillary suppurative lymphadenopathy.