{'fraction_non_alphanumeric': 0.020316027088036117, 'fraction_numerical': 0.006772009029345372, 'mean_word_length': 5.082191780821918, '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}}
[Neoplasms of the middle ear behind the intact tympanic membrane].

The authors described 4 cases of neoplasms of middle ear behind the intact tympanic membrane (3 cases of paraganglioma and 1 case of adenocarcinoma). They paid attention to the guileful course of disease and non-characteristic symptoms in its initial stage. Only immediate exploratory operation of the middle ear enables to make early diagnosis and start effective treatment.