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Article

Investigation of unexpected serum CA19-9 elevation in Lewis-negative cancer patients.

Annals of clinical biochemistry - 1 May 2012

Hamada Etsuko, Taniguchi Terumi, Baba Satoshi, Maekawa Masato

Abstract excerpt

BACKGROUND: Cancer patients with a Lewis (a-b-) phenotype have no carbohydrate antigen 19-9 (CA19-9) in their serum. However, we found a small but distinct elevation in the serum CA19-9 level in three cancer patients with the Lewis-negative phenotype. Here, we investigated the reason of such phenomena. METHODS: Six cancer patients with a Lewis-negative phenotype were selected by very low CA19-9 concentrations:...

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Identifiers

PMID: 22492877
DOI: 10.1258/acb.2011.011213

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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