By

Linda Sorg

21
Sep

Ring chromosome 7 syndrome

  Ring formation on chromosome 7 is very rare. A ring chromosome is formed when two ends of a chromosome fuse together, forming a ring structure; this can happen with or without terminal chromosomal deletions. Clinical manifestations of ring chromosome 7 syndrome, r(7), include growth and developmental delay, speech delay,...
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29
Jun

CDO Summer 2023 Newsletter

Chromosome Disorder Outreach’s Summer 2023 Newsletter now available! The CDO newsletter includes a family spotlight, additional resources, media corner, Ask the Doctor and new research updates. Download a copy of the Summer issue here. Questions, comments or to submit an article for an upcoming issue contact info@chromodisorder.org
28
Apr

Partial Tetrasomy 6p comparable to Trisomy Distal 6p Phenotype

Tetrasomy 6p caused by a small supernumerary marker chromosome presenting Trisomy distal 6p Phenotype. A small supernumerary marker chromosome (sSMC) is a structurally abnormal additional chromosome that most often lacks a distinct banding pattern and is difficult to identify by conventional banding cytogenetic analysis. Approximately 70% of such chromosomes occur...
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