{'fraction_non_alphanumeric': 0.03470031545741325, 'fraction_numerical': 0.00946372239747634, 'mean_word_length': 4.825688073394495, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Alpha-fetoprotein-producing cancer of the ampulla of Vater.

A case of cancer of the ampulla of Vater producing alpha-fetoprotein is reported and the literature is reviewed. As far as we know, the literature contains no reports of such a case. The preoperative serum alpha-fetoprotein was remarkably high (7,480 ng/ml), but it fell to normal values (under 5.0 ng/ml) after pancreatoduodenectomy, by means of which the lesion could be radically resected. In this case, the immunohistochemical findings at optical and electron microscopy clearly indicated the production of alpha-fetoprotein by the cancer cells of the ampulla of Vater.