Three Cases of Laryngeal Tuberculosis : Type Tendencies and Medical Considerations

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Tuberculosis (TB) patients have been decreasing since 1999. Laryngeal tuberculosis (LTB) accounts for only about 0.2% (50 patients) of all TB cases each year in Japan, and therefore we fear that LTB tends to be overlooked. It is difficult to diagnose laryngeal tuberculosis because there are various types. We compared reports of the past with our own three cases, and reviewed LTB type tendencies and medical considerations.The patients were 57-, 22- and 48-year-old women. Case 1 had been diagnosed as granuloma. We performed an operation under general anaesthesia, and diagnosed her as LTB. Cases 2 and 3 had been diagnosed as laryngitis. We diagnosed these as LTB based on chest CT and sputum examination.Today we are able to find small lesions thanks to medical advances, but this ability may make diagnosis difficult. Otorhinolaryngologists assume visiting patients are mild cases, but laryngeal tuberculosis should be immediately suspected for intractable cases. We suggest the need for a concept of a new "swelling type" of LTB. We believe that understanding recent type tendencies, and reconfirming by examination are helpful for diagnosis of LTB.
特定非営利活動法人日本気管食道科学会の論文