Case 215. Toxoplasma lymphadenitis (33 y-o M)
　 　 　 　 　
　 　 Biopsied cervical lymph node showing histologic features of Piringer's lymphadenitis 　 　
　 　 　 　 　
　 　
Key words : Toxoplasma gondii, Piringer's lymphadenitis, AIDS
 　 　
　 　 　
　
　 　 　
Small, iregular-shaped epithellioid granulomas are distributed in the paracortex. Along the sinus, features of monocytoid B-cell hyperplasia are observed (HE). Usually, cysts of Toxoplasma gondii are hardly identified in the lesion. 　 Reference case 215A
Biopsied lymph node in an HIV-positive 32 y-o Thai male (HE).　In the cytoplasm of multinucleated giant cells, tachyzoites of T. gondii are clustered. Systemic toxoplasmosis is a serious complication in AIDS patients (refer to cases 96, 126 and 231).