KnowraDifferential diagnosisLinked fromLinked fromThe 117 pages that link to Differential diagnosis, each with the reason it gives.All 117Broader topic 1Related 111Narrower topic 4Compared with 1Polycystic ovary syndromeNarrower topic: Thyroid disorders, elevated prolactin, and other causes must be considered before diagnosing PCOS.PellagraNarrower topic: Sun-sensitive rashes and cognitive changes have causes besides pellagra.Abdominal painNarrower topic: Abdominal pain has many causes, so evaluation weighs competing explanations.Prurigo pigmentosaNarrower topic: Several itchy or net-patterned eruptions can resemble this disorder.