{'fraction_non_alphanumeric': 0.02118003025718608, 'fraction_numerical': 0.007564296520423601, 'mean_word_length': 5.0181818181818185, '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}}
The fuzzy fluid level sign: reappraisal of its cause and diagnostic value.

The radiographic appearance of the air-fluid interface in the stomach, intra-abdominal abscesses, diaphragmatic hernias, and in other processes was studied to determine its diagnostic value. Stereoradiographs of the chest or abdomen of 16 patients and 116 control subjects in an upright position were analyzed. The air-fluid interface may appear either fuzzy or sharp and distinct. Since the appearance depends on the alignment of the x-ray beam with respect to the surface of fluid rather than chemical composition or location in the abdomen, it does not have diagnostic significance.