High Quality Content by WIKIPEDIA articles! X-linked reticulate pigmentary disorder (also known as "Partington amyloidosis") is a cutaneous condition that has been described in adult women that had linear streaks of hyperpigmentation and in which male patients manifested a reticulated mottled brown pigmentation of the skin, which, on biopsy, demonstrated dermal deposits of amyloid. WAardenburg syndrome or Waardenburg-Klein syndrome is a rare genetic disorder most often characterized by varying degrees of deafness, minor defects in structures arising from the neural crest, and pigmentation anomalies. WAardenburg syndrome is named after Dutch ophthalmologist Petrus Johannes Waardenburg (1886-1979), who described the syndrome in detail in 1951. THe condition he described is now categorized as WS1.