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  • Title: Atypical courses of serum tumor markers--4 case reports.
    Author: Klapdor R, Bahlo M, Babinski A.
    Journal: Anticancer Res; 2003; 23(2A):845-50. PubMed ID: 12820311.
    Abstract:
    We report on 4 cancer patients with transient unspecific elevations of the serum tumor markers CA 19-9, CEA, CA 125 and CA 72-4, respectively. In one patient cholangitis due to biliary obstruction induced a significant transient increase of CA 19-9, in another patient HUS, probably as a severe complication after Mitomycin-C + Gemcitabine therapy resulted in a significant increase of serum CA 125. One patient demonstrated an extensively elevated and inexplicable serum CA 19-9 concentration (9450 u/ml) during a period of abdominal pain with continuous decrease and finally normalization within the following 5 years. Also inexplicable is an unexpected remittent increase of serum CA 72-4 in the course of chemotherapy after gastrectomy for gastric carcinoma. The presented data underline the necessity of interpreting serum courses of tumor markers only in the light of all available clinical data, imaging data and other laboratory tests in order to avoid misinterpretations.
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