Diseases

Variegate porphyria

A rare metabolic disorder characterized by a deficiency of a certain enzyme which results in a build-up in the body of porphyrins or their precursors. This form of hepatic porphyria causes the sufferer to have acute attacks as well as skin sensitivity.

Vasculitis- autoimmune

This is a broad and heterogeneous group of diseases characterized by inflammation and damage to the blood vessels, thought to be brought on by an autoimmune response. Any type, size, and location of blood vessel may be involved. Vasculitis may occur alone or in combination with other diseases, and may be confined to one organ or involve several organ systems.

Vasculitis- cutaneous necrotizing

Inflammation and damage of the blood vessel walls that also affects the skin. The condition may occur on its own or as a result of an underlying condition.

Vasquez Hurst Sotos syndrome

A rare genetic disorder characterized by underdeveloped genitals, obesity, mental retardation and skeletal abnormalities.

VATER association

An association of congenital abnormalities that consists of vertebral defects, imperforate anus, tracheoesophageal fistula, and radial and renal dysplasia.

Vein of Galen malformation

A rare condition which is characterised by an aneurysm resulting from a intracranial vascular malformation.

Ventricular septal defects

A ventricular septal defect (VSD) is a defect in the ventricular septum, the wall dividing the left and right ventricles of the heart. The ventricular septum consists of an inferior muscular and superior membranous portion and is extensively innervated with conducting cardiomyocytes. The membranous portion, which is close to the atrioventricular node, is most commonly affected in adults and older children

Ventriculo-arterial discordance- isolated

A rare birth disorder where the right atrium is connected to the left ventricle and vice versa. The position of the heart ventricles is also inverted which allows normal blood oxygenation. Symptoms generally only occur later in life or if other heart defects are present which is usually the case.

Vernal keratoconjunctivitis

Vernal keratoconjunctivitis is a chronic, severe allergy that affects the surfaces of the eyes. It most commonly occurs in boys living in warm, dry climates. Attacks associated with VKC are common in the spring (hence the name "vernal" and summer but often reoccur in the winter. The condition usually subsides at the onset of puberty.

Verrucous nevus

Verrucous nevus: A condition characterised by the occurrence of one or more pigmented lesions on the skin.

Vertebral body fusion overgrowth

Vertebral body fusion (medical condition): A rare syndrome characterized by the progressive fusion of the front of the vertebrae as well as the excessive growth of the whole body.

Vertical talus- congenital

Vertical talus, congenital (medical condition): A congenital condition that is characterised by a vertical talus resulting in a rigid flatfoot.