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How many people are affected/at risk for pituitary tumors?

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It is estimated that up to 20% of people have pituitary tumors, but only about one-third of these people experience symptoms that cause health problems.1 Most people with pituitary tumors never know they have them.

The highest incidence of pituitary tumors is in adults. These tumors are very rare in children and adolescents, with a prevalence of up to 1 per 1 million children.2 Studies suggest that only 3.5% to 8.5% of pituitary tumors are diagnosed before the age of 20.2


  1. Melmed, S. (2011). Pathogenesis of pituitary tumors. Nature Reviews Endocrinology, 7, 257−266. [top]
  2. Keil, M.F. & Stratakis, C.A. (2008). Pituitary Tumors in Childhood: an update in their diagnosis, treatment and molecular genetics. Expert Rev Neurother; 8(4): 563–74. Retrieved June 19, 2012, from http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2743125/ [top]

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