del(5q31.1)

**Semantic type:** Cell or Molecular Dysfunction

**Definition:** A cytogenetic abnormality that refers to the loss of some or all of the genetic material located in the q31.1 band on the long arm of chromosome 5.

**Synonyms:** - Chromosome 5q31.1 Deletion - Chromosome 5q31.1 Deletion - del(5)(q31.1)