{'fraction_non_alphanumeric': 0.020172910662824207, 'fraction_numerical': 0.002881844380403458, 'mean_word_length': 4.743801652892562, '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}}
Carcinoid of the ampulla of Vater: presentation of a new case.

The appendix is the most common location for carcinoid tumors within the gastrointestinal tract. Carcinoid tumors of the ampulla of Vater is an extremely rare entity; only 71 cases of carcinoid of the ampulla of Vater have been reported in the literature to date. The clinical picture is non-specific, and endoscopy is the main diagnostic procedure; but large and deep biopsies are often needed to verify the histological nature of the tumor. Surgery is the treatment of choice. We report a new case of this rare tumor, and a review of the literature concerning the clinical findings, diagnosis, therapeutic challenge and results.