Persistent Generalized Lymphadenopathy, also known as persistant generalized lymphadenopathy, is related to pheochromocytoma/paraganglioma syndrome 1 and pheochromocytoma/paraganglioma syndrome 4. An important gene associated with Persistent Generalized Lymphadenopathy is SDHD (Succinate Dehydrogenase Complex Subunit D), and among its related pathways/superpathways are Respiratory electron transport, ATP synthesis by chemiosmotic coupling, and heat production by uncoupling proteins. and Glucose / Energy Metabolism. The drugs Zidovudine and Aldesleukin have been mentioned in the context of this disorder. Affiliated tissues include lymph node and salivary gland, and related phenotypes are homeostasis/metabolism and growth/size/body region