Von Hippel-Lindau disease
From Wikipedia, the free encyclopedia
| ICD-10 | Q85.8 | |
|---|---|---|
| ICD-9 | 759.6 | |
| OMIM | 193300 | |
| DiseasesDB | 14000 | |
| eMedicine | ped/2417 oph/354 | |
| MeSH | C10.562.400 | |
Von Hippel-Lindau disease (VHL) is a rare inherited genetic condition involving the abnormal growth of tumors in parts of the body which are particularly rich in blood supply.
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[edit] Features
Features of VHL are:
- angiomatosis - little knots of capillaries in various organs.
- hemangioblastomas - tumors of the central nervous system (CNS, especially the cerebellum).
- pheochromocytoma - tumors of the adrenal medulla that often produce catecholamines
- renal cell carcinoma - in some forms
Untreated, VHL may result in blindness and permanent brain damage, death is usually caused by complications of malignant tumors in the brain or kidney.
[edit] Types
There are various subtypes:
- Type 1 (angiomatosis without pheochromocytoma)
- Type 2 (angiomatosis with pheochromocytoma)
- Type 2A (with renal cell carcinoma)
- Type 2B (without renal cell carcinoma)
- Type 2C (only pheochromocytoma and no angiomatosis or renal cell carcinoma)
[edit] Genetics
The disease is caused by mutations of the Von Hippel-Lindau tumor suppressor (VHL) gene on the third chromosome.
VHL is an autosomal dominant disorder, but there is a wide variation in the age of onset of the disease, the organ system affected and the severity of effect. Most people with von Hippel-Lindau syndrome inherit an altered copy of the gene from one parent. In about 20 percent of cases, however, the altered gene is the result of a new mutation that occurred during the formation of reproductive cells (eggs or sperm) or early in fetal development.
As long as one copy of the VHL gene is producing functional VHL protein in each cell, tumors do not form. If a mutation occurs in the second copy of the VHL gene during a person's lifetime, the cell will have no working copies of the gene and will produce no functional VHL protein. A lack of this protein allows tumors characteristic of von Hippel-Lindau syndrome to develop.
[edit] History
Eugen von Hippel described the angiomas in the eye in 1904.[1]. Arvid Lindau described the angiomas of the cerebellum and spine in 1927.[2]
[edit] Nomenclature
Other names are: angiomatosis retinae, angiophakomatosis retinae et cerebelli, familial cerebello-retinal angiomatosis, cerebelloretinal hemangioblastomatosis, Hippel Disease, Hippel-Lindau syndrome, HLS, Lindau disease or retinocerebellar angiomatosis.
[edit] References
- ^ Von Hippel E. Ueber eine sehr seltene Erkrankung der Netzhaut. Albrecht von Graefes Arch Ophthal 1904;59:83-106.
- ^ Lindau A. Zur Frage der Angiomatosis Retinae und Ihrer Hirncomplikation. Acta Ophthal 1927;4:193-226.
