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  • Title: [A case of leiomyoma of the trachea].
    Author: Shirakawa T, Takenaka S, Matsumoto T, Hirata N, Nishimura S, Fukuda K, Tanaka F, Shima K, Miyayama H.
    Journal: Nihon Kyobu Shikkan Gakkai Zasshi; 1991 Nov; 29(11):1464-8. PubMed ID: 1770687.
    Abstract:
    An asymptomatic 59-year-old male in whom an abnormal shadow was detected on indirect chest X-ray film, was referred to our hospital for further examination. Further examinations revealed no problem at the previously checked site. However, bronchoscopy revealed a protruding hemispheric lesion on the membranous portion of the trachea 2 cm above the carina. The biopsy specimens revealed that the lesion was leiomyoma of the trachea. Transbronchoscopic biopsy was performed three times and the lesion disappeared. A few small fibrous nodules remained. The incidence of this primary tracheal tumor is rare, and benign lesions are much less common than malignant lesions. Furthermore, leiomyoma of the trachea is extremely rare. Only 20 cases have been reported in Japanese and English literature. The average age of the reported cases, including our case, was 49.3 years old. Among the male patients, most cases were around 50 years old but among female patients, there was no standard age for this disease. Clinical symptoms included coughing, dyspnea, wheezing and bloody sputum. There were several patients with severe dyspnea, two of which died. Ten patients (50%) had been misdiagnosed as having bronchial asthma. If a case is suspected to be bronchial asthma in which and where bronchodilators have little effect, we must always consider the possibility of this type of lesion, and perform further examinations and treatment.
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