Retinal astrocytoma in a young male with PTEN hamartoma tumor syndrome

Khanna, Nitasha; Statler, Brittney; Chen, Wendy; Snady-McCoy, Lori; Mori, Mari; Janigian, Robert H.

doi:10.1016/j.jaapos.2018.07.357

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PTEN Hamartoma tumor syndrome in childhood: A review of the clinical literature

Macken

Tischkowitz

Lachlan

2019

American J of Med Genetics Pt C

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PTEN hamartoma tumor syndrome (PHTS) is a highly variable autosomal dominant condition associated with intellectual disability, overgrowth, and tumor predisposition phenotypes, which often overlap. PHTS incorporates a number of historical clinical presentations including Bannayan‐Riley‐Ruvalcaba syndrome, Cowden syndrome, and a macrocephaly‐autism/developmental delay syndrome. Many reviews in the literature focus on PHTS as an adult hamartoma and malignancy predisposition condition. Here, we review the current literature with a focus on pediatric presentations. The review starts with a summary of the main conditions encompassed within PHTS. We then discuss PHTS diagnostic criteria, and clinical features. We briefly address rarer PTEN associations, and the possible role of mTOR inhibitors in treatment. We acknowledge the limited understanding of the natural history of childhood‐onset PHTS as a cancer predisposition syndrome and present a summary of important management considerations.

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