{'fraction_non_alphanumeric': 0.018867924528301886, 'fraction_numerical': 0.0, 'mean_word_length': 4.709677419354839, '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}}
Acquired arteriovenous fistula of the right forearm caused by repeated blunt trauma: a report of a rare case.

In acquired arteriovenous fistula (AVF), there is usually a history of penetrating injury and hemorrhage. We report a very rare case of an elderly man with acquired AVF of the right upper extremity without any history of penetrating trauma and hemorrhage, but with a history of repeated blunt trauma on his right forearm. Although no surgery was performed for the AVF, it was concluded close follow up would be prudent.