{'fraction_non_alphanumeric': 0.018230563002680965, 'fraction_numerical': 0.011796246648793566, 'mean_word_length': 4.980769230769231, '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}}
Some Aspects of Extra-Pulmonary Tuberculosis

THE B.T.T.A. survey on mortality conducted in 1968 and published in 1971 showed that 20 per cent of the 263 deaths from tuberculosis were notified after death and 6 of these deaths were from cryptic miliary tuberculosis. It also showed that 13 of the 22 patients who had miliary tuberculosis and tuberculous meningitis died before they were notified. Extra-pulmonary tuberculosis is now a rare disease in this country and this presents two problems-it may be overlooked in differential diagnosis and it has a very much higher incidence in the immigrant population in this country than in the indigenous population. The possibility of extra-pulmonary tuberculosis, which may affect any system, must always be remembered, particularly when dealing with Asian immigrants. Disseminated tuberculosis may be classified into 3 types-acute miliary, cryptic miliary, and diffuse involvement of serous membranes with effusions, of lymph nodes or of bones. Until recently, many people were unaware of the existence of cryptic miliary tuberculosis as a separate clinical entity. To most people, miliary tuberculosis was regarded as acute miliary tuberculosis but this is very largely a disease of the young whereas the cryptic form occurs mainly amongst the elderly where it often goes unrecognised and may only be notified at postmortem. The acute form usually presents with obvious constitutional symptoms, whereas in the cryptic form the constitutional symptoms may be relatively slight. In the acute form, the characteristic appearances are seen in a chest X-ray (although these may not develop immediately and a repeat X-ray after 2 weeks may be required). Tubercles which are diagnostic of the acute form of the disease and occur in about 25 per cent of such patients, are absent in the elderly patient with the cryptic form.