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  • Title: Clinical value of imaging using antibody to alpha fetoprotein in germ cell tumours.
    Author: Hitchins RN, Begent RH, Green AJ, Searle F, van Heyningen V, Bagshawe KD.
    Journal: Nuklearmedizin; 1989 Feb; 28(1):29-33. PubMed ID: 2469059.
    Abstract:
    Germ cell tumours (GCT) producing alpha fetoprotein (aFP) can be imaged by external scintigraphy after intravenous administration of radiolabelled antibody directed against aFP. Antibody imaging (AI) by this method was used in an attempt to guide surgical resection of deposits of drug-resistant or recurrent GCT. 30 patients with GCT and raised aFP in whom site of tumour was not known were investigated by AI and conventional imaging methods. All but one were heavily pretreated. Where tumour appeared localised, resection was attempted. Tumour was found in all sites positive by both AI and conventional imaging. AI produced false-positive results in one of 30 patients and false-negative results in 9 patients. Computerised tomography was false-positive in one case and false-negative in three. In these patients, AI gave true-negative and true-positive results, respectively. Of 11 patients with positive AI in whom resection was attempted, 6 achieved sustained complete response with up to 5 years follow-up. We conclude AI and conventional imaging methods to be complementary in selection for surgery of patients with drug-resistant or recurrent GCT.
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