Recent Advances in Genetics, Diagnosis, Localization, and Treatment of Pheochromocytoma

Figure 1. Diploid cells have two copies of each gene. A tumor suppressor gene, such as the von Hippel–Lindau gene, is consistent with the Knudson model. In the hereditary form of cancer, the patient inherits a mutation of one copy of the gene. In the tumor, such as a pheochromocytoma in a patient with von Hippel–Lindau disease, the second copy is inactivated by a mechanism such as mutation or deletion.
Figure 1. Diploid cells have two copies of each gene. A tumor suppressor gene, such as the von Hippel–Lindau gene, is consistent with the Knudson model. In the hereditary form of cancer, the patient inherits a mutation of one copy of the gene. In the tumor, such as a pheochromocytoma in a patient with von Hippel–Lindau disease, the second copy is inactivated by a mechanism such as mutation or deletion. The Knudson two-hit model.

This Article

  1. Ann Intern Med February 20, 2001 vol. 134 no. 4 315-329
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