Lymph node, adjacent to preauricular soft tissue mass.

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Lymph node, adjacent to preauricular soft tissue mass. Lymph node, adjacent to preauricular soft tissue mass. A, Prominent reactive-appearing germinal centers are seen within this hyperplastic lymph node. Foci of dense eosinophilic infiltrates forming eosinophilic microabscesses, impinge directly into germinal centers (hematoxylin-eosin, × 40). B, Reactive germinal center with abundant nuclear debris, numerous Warthin-Finkeldey-type polykaryocytes, and delicate eosinophilic matrix (hematoxylin-eosin, × 100). Avinash K. Shetty et al. Pediatrics 2002;110:e39 ©2002 by American Academy of Pediatrics