{'fraction_non_alphanumeric': 0.0066815144766146995, 'fraction_numerical': 0.0, 'mean_word_length': 5.428571428571429, '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}}
A Rare Case of Retrocaval Ureter Associated with Persistent Left Vena cava

We report a rare case of a retrocaval ureter associated with a left inferior vena cava transposition and with concomitant nephrolithiasis in a young woman already surgically treated during her first years of life for cardiovascular disease. Diagnosis and surgical procedure are described, including the use of a flexible ureterorenoscope to facilitate kidney stone removal.