Figure 1
From: A case report of seronegative cat scratch disease, emphasizing the histopathologic point of view
Histopathology, silver stain and PCR of Cat scratch disease. (A) The affected lymph node showed reactive follicular hyperplasia and multiple geographic microabscesses (H&E stain × 40). (B) Numerous neutrophils are seen in the necrotic foci of the lymph node (H&E stain × 400). (C) Some clumps of bacteria were found in the lymph node (Warthin-Starry silver stain × 1,000). (D) Results of semi-nested polymerase chain reaction (PCR) for the B. henselae pap 31 gene (211 bp). From the left column, Lanes 1-5: Lane 1 and 5, DNA ladder marker (Bioneer, Daejeon, Korea); lane 2, positive control (Houston-1, ATCC 49882); lane 3, negative control; lane 4, lymph node tissue from the patient.