title: Mucinous cystadenoma of ovary in a patient with juvenile polyposis due to 10q23 microdeletion: expansion of phenotype.
abstract: Juvenile polyposis syndrome (JPS) is a hereditary condition characterized by development of gastrointestinal polyps, and caused by mutations in SMAD4 or BMPR1A genes. Juvenile polyps can also be found in a related group of syndromes with multisystemic involvement including Cowden disease, Lhermitte-Duclos disease, Bannayan-Riley-Ruvalcaba syndrome, and Proteus-like syndrome, all grouped as PTEN hamartoma tumor syndromes (PHTS). In all these conditions including JPS, polyps manifest in older childhood or early adulthood. Infantile juvenile polyposis (JPI) is a rare entity, presenting in the first year of life with severe gastrointestinal symptoms. Many of these patients have associated macrocephaly, hypotonia, and congenital anomalies. It was recently recognized that patients with infantile polyposis have a 10q23 microdeletion, involving both BMPR1A and PTEN genes. There is a major risk for gastrointestinal malignancies in these patients, but the risk for development of other tumors is not known. We describe a patient with a history of infantile polyposis, macrocephaly, developmental delay, hypotonia, and a 10q23 microdeletion. At age 14 she presented with bilateral mucinous cystadenoma of the ovary. This type of tumor was not previously reported in association with JPS, 10q23 microdeletion syndrome, or infantile polyposis. We believe that ovarian cystadenomas may be another neoplastic complication of infantile polyposis, and that our report widens the spectrum of the 10q23 microdeletion phenotype.
authors.affiliation: Mayo Medical School, Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, Minnesota 55905, USA. dbabovic@mayo.edu
authors.forename: Nikola
authors.initials: N
authors.lastname: Babovic
authors.forename: Patricia S
authors.initials: PS
authors.lastname: Simmons
authors.forename: Christopher
authors.initials: C
authors.lastname: Moir
authors.forename: Erik C
authors.initials: EC
authors.lastname: Thorland
authors.forename: Bernd
authors.initials: B
authors.lastname: Scheithauer
authors.forename: Troy J
authors.initials: TJ
authors.lastname: Gliem
authors.forename: Dusica
authors.initials: D
authors.lastname: Babovic-Vuksanovic
mesh_terms: D011125:Adenomatous Polyposis Coli / Q000235:genetics*; D000328:Adult; D017668:Age of Onset; D002675:Child, Preschool; D002879:Chromosomes, Human, Pair 10; D055028:Comparative Genomic Hybridization; D018291:Cystadenoma, Mucinous / Q000235:genetics*; D005145:Face / Q000002:abnormalities; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D010051:Ovarian Neoplasms / Q000235:genetics*; D010641:Phenotype; D017384:Sequence Deletion