Category: X

X-linked ichthyosis (XLI) is a hereditary disorder of the skin that affects males almost exclusively. Female carriers of the abnormal gene may occasionally demonstrate clinical findings. Corneal opacities (clouding of the clear part of the eyeball that overlies the iris) and cryptorchism (undescended testicles) are also commonly seen in patients with XLI. Ichthyosis (reddened, scaling…

Hydrocephalus is a condition that is caused by abnormal buildup or accumulation of cerebrospinal fluid (CSF) in the ventricles or subarachnoid space of the brain. As a result, intracranial pressure is increased by overproduction of CSF, obstruction of the flow of CSF, or failure to reabsorb the fluid. Hydrocephalus can be either congenital with an…

An extremely rare condition in males in which they have two Y chromosomes instead of one. They grow faster than normal, and their final height is approximately 7cm above average. Many experience severe acne during adolescence. XYY syndrome is a tail-stature syndrome in males with an extra Y chromosome and is characterized by behavioral disorders…

A drug which helps to narrow blood vessels, used in the treatment of colds and sinusitis.  

A trade name for a preparation of lignocaine. A trade name for lidocaine, a local anesthetic employed to desensitize tissues prior to minor surgeries and for nerve blocking.  

A method of gathering information about the body by taking images using X-rays. It is carried out by a radiographer or radiologist.  

A picture produced by exposing sensitive film to X-rays.  

The process of showing X-ray pictures of the inside of part of the body on a screen.  

A genetic disorder caused by a mutation on the X chromosome which only appears in males, e.g. one form of haemophilia.  

Relating to the genes situated on the X chromosome. Term describing a gene that is located on the X chromosome, one of the two sex chromosomes; also a trait or genetic disorder associated with such a gene. Such traits are recessive, meaning that the trait will be masked in the presence of a dominant gene.…