{'fraction_non_alphanumeric': 0.019138755980861243, 'fraction_numerical': 0.019138755980861243, 'mean_word_length': 4.657657657657658, '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}}
Surgical treatment of external auditory canal cholesteatoma

The authors present a series of 12 ears in 10 patients ranging from 18 to 72 years old with external auditory canal cholesteatomas (EACC) seen over an 8 year period. Males and females were equally involved. The left ear was involved 3 times as frequently as the right. No association with sinus or bronchial diseases was seen. Two cases were examined, 3′i and 7 years before the development of any external auditory canal symptoms, and were normal. Two cases of bilateral involvement by EACC were reported. The clinical findings of EACC in this series are discussed.