Iris Nodules and It's Pathology

·         Lisch nodule, neural crest hamartoma: NF 1

·         JXG nodules are composed of histiocytes and Touton giant cells: JXG

·         Koeppe nodules are collections of inflammatory cells, near pupillary margin: granulomatous and non-granulomatous uvetis

·         Bassaca Nodules are seen at base: only in granulomatous uveitis (sarcoid, Tb, syphilis, VKH); often look gelatinous