{'fraction_non_alphanumeric': 0.020891364902506964, 'fraction_numerical': 0.0, 'mean_word_length': 5.145299145299146, '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}}
[Tubo-petrous fistula with valve: apropos of a case].

The abnormal pneumatization of the apex of the petrous bone may determine pathological disturbances in the existing conditions of a tube-petrous fistula with valve. Such a clinical case is presented with tube-petrous fistula, which during a period of four years was investigated in several clinics due to its non-typical clinical symptoms, without the diagnostic or treatment having been mentioned. The authors insisted that the Eustachian tube should be investigated in order to establish a probable diagnostic. The paper presents the technique of operation used, the injuries found and the manner of obturating the fistula in two successive surgical operations.