{'fraction_non_alphanumeric': 0.034904013961605584, 'fraction_numerical': 0.0, 'mean_word_length': 4.797979797979798, '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}}
[Adenoid-cystic carcinoma (cylindroma) of the trachea. An analysis of nine cases (author's transl)].

Nine patients with an adenoid-cystic carcinoma of the trachea are describes. It is a rare tumour which grows relatively slowly; it has a tendency for early invasion of neighbouring tissues, but late distant metastases. A correct diagnosis can be made by the radiologist. The trachea should be visible on every film of the thorax and should be inspected. In particular, a diagnosis of therapy-resistant asthma should direct the attention of the radiologist to the trachea.