Rare Diseases under letter "Y"

Yellow fever [↗]
Yellow nail syndrome [↗]
Yellow oculocutaneous albinism [↗]
Yersiniosis [↗]
Yolk sac tumor [↗]
Yolk sac tumor of the central nervous system [↗]
Yorifuji-Okuno syndrome [↗]
Yoshimura-Takeshita syndrome [↗]
Young adult-onset Parkinsonism [↗]
Young-Hugues syndrome [↗]
Young-onset Parkinson disease [↗]
Young-Simpson syndrome [↗]
Young syndrome [↗]
Yunis-Varon syndrome [↗]