title: [The crypto-hem test in screening for colon cancer].
abstract: The paper discusses the reliability of crypto-hem test (detection of occult blood in feces) in diagnosing large bowel tumors in the course of a mass screening. 1573 healthy subjects aged 45 years and older were examined. The results were positive in 24 (2%) out of 1190 screenees who were involved in the test and in 58 (4.9%) subjects the results were suspicious. Tumors were detected in 23 (95.9%) test-positive screenees: cancer--12.5, polyps--54.2 and villous tumor--29.2%. Crypto-hem test proved instrumental in mass screening. Due to its application, symptom-free rectal cancer was diagnosed in 0.2, villous tumor--0.6, and single adenomatous polyps--1.1%.
authors: V V
authors: VV
authors: Prokorov
authors: V L
authors: VL
authors: Shabarov
mesh_terms: D003110:Colonic Neoplasms / Q000517:prevention & control*; D005859:Germany, East; D006403:Hematologic Tests; D006801:Humans; D008403:Mass Screening / Q000379:methods*; D008875:Middle Aged; D009780:Occult Blood; D012004:Rectal Neoplasms / Q000517:prevention & control
vernacular_title: "kripto-gem test" v skrininge opukholevykh zabolevaniĭ tolstoĭ kishki.