Drug-induced liver diseases are diseases of the liver that are caused by physician-prescribed medications, over-the-counter medications, vitamins, hormones, herbs, illicit (recreational) drugs, and environmental toxins.
Examples of chromosomal disorders. Some of the most common chromosomal abnormalities include: 1  Down's syndrome or trisomy 21. 2  Edward's syndrome or trisomy 18.3  Patau syndrome or trisomy 13. 4  Cri du chat syndrome or 5p minus syndrome (partial deletion of short arm of chromosome 5).ome of the most common chromosomal abnormalities include: 1  Down's syndrome or trisomy 21. 2  Edward's syndrome or trisomy 18. 3  Patau syndrome or trisomy 13.
A chromosomal abnormality can affect the number of chromosomes, the structure of certain chromosomes, or the composition of chromosomes. If the material found in chromosomes is balanced so that the expected amount is found in each cell, no abnormalities occur.