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Article

A case of mosaic supernumerary ring chromosome 15 with two copies of the segment 15p11.1-q14.

American journal of medical genetics. Part A - 1 Aug 2006

Zou Ying S, McGrann Pamela S, Uphoff Timothy S, Van Dyke Daniel L

Abstract excerpt

Although supernumerary marker chromosomes derived from chromosome 15 (SMC(15)) are the most common marker chromosome in humans, ring SMC(15)s are rare. Here we report on a 16-month-old patient who has a ring SMC(15) with two copies of the segment 15p11.1-q14 region. She exhibits hypotonia, developmental delay, speech delay, microstomia, micrognathia, and other mild dysmorphic features. The ring was present in 22%...

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Identifiers

PMID: 16830338
DOI: 10.1002/ajmg.a.31339

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Source receipt: pubmed, retrieved 7 Sept 2026.

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