Synonyms
Hereditary Nonpolyposis Colorectal Cancer (Lynch Syndrome I and II)
Hereditary Nonpolyposis Colorectal Carcinoma

Disorder Subdivisions
Lynch Syndrome I
Hereditary Site Specific Cancer
Lynch Syndrome II
Cancer Family Syndrome, Lynch Type

General Discussion
The Lynch Syndromes are rare hereditary disorders that usually cause cancer to develop either in the colorectal area or in other sites. Primary cancers may develop in the female genital tract, stomach, brain, breasts, or urological system. The cancers of the colorectal area associated with the Lynch Syndromes usually develop at a younger age than is normally found in other persons with colorectal cancer.