Respiratory System

{"ops":[{"insert":"Diagnosis and reasoning"},{"insert":"\n","attributes":{"header":1}},{"insert":"This patient has presented with a fever of unknown origin (FUO), in association with a cough and constitutional symptoms; examination reveals the presence of crackles and bronchial breathing in the right apex.\n\nThese clinical findings are strongly suspicious of pulmonary tuberculosis (PTB), which is the commonest cause of FUO; note also that the disease is more common in individuals with a disadvantaged socioeconomic background.\n\nWhile several other respiratory diseases (such as atypical pneumonias, lung abscesses and sarcoidosis) can also present in a similar manner, these are probably best considered if and when PTB has been excluded.\n\nA chest x-ray is a good initial investigation here; this shows a cavitary lesion in the right apex, whic"}]}

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