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Tuberous sclerosis complex is a genetic disorder characterised by the growth of numerous noncancerous (benign) tumours in many parts of the body. These tumours can occur in the brain, kidneys, heart, skin, and other organs, in some cases leading to significant health problems. Tuberous sclerosis complex also causes developmental problems, and the signs and symptoms of the condition vary from person to person.

विवरण

Tuberous sclerosis complex is a genetic disorder characterised by the growth of numerous noncancerous (benign) tumours in many parts of the body. These tumours can occur in the brain, kidneys, heart, skin, and other organs, in some cases leading to significant health problems. Tuberous sclerosis complex also causes developmental problems, and the signs and symptoms of the condition vary from person to person.

Tuberous sclerosis complex often affects the brain, with some affected individuals having benign growths in the outer surface of the brain (cerebral cortex) known as cortical tubers. Individuals with tuberous sclerosis complex often develop a pattern of behaviors called TSC-associated neuropsychiatric disorders (TAND). These disorders include hyperactivity, aggression, psychiatric conditions, intellectual disability, and problems with communication and social interaction (autism spectrum disorder). Additionally, individuals with tuberous sclerosis complex may have attention-deficit/hyperactivity disorder (ADHD) or seizures.

Kidney tumours are common in people with tuberous sclerosis complex; these growths can cause severe problems with kidney function and may be life-threatening in some cases. Additionally, tumours can develop in the heart (cardiac rhabdomyoma) and the light-sensitive tissue at the back of the eye (the retina). Some women with tuberous sclerosis complex develop lymphangioleiomyomatosis (LAM), which is a lung disease characterised by the abnormal overgrowth of smooth muscle-like tissue in the lungs that causes coughing, shortness of breath, chest pain, and lung collapse.

Virtually all affected people have skin abnormalities, including patches of unusually light-colored skin, areas of raised and thickened skin, and growths under the nails. Tumours on the face called facial angiofibromas are also common beginning in childhood. Sometimes, affected individuals have areas of bone or dental damage.

Inheritance patterns

The source lists the following possible inheritance patterns: Autosomal dominant. More than one pattern can apply in different cases.

Other names

Bourneville disease

Bourneville phakomatosis

Cerebral sclerosis

Sclerosis tuberosa

Tuberose sclerosis

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