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We herein report the case of a 93-year-old woman with breast cancer on the left side. Preoperative computed tomography of the chest showed irregularities and narrowing of the mid-trachea. Bronchoscopy was performed, and the results of a biopsy supported a diagnosis of mucosa-associated lymphoid tissue (MALT) lymphoma. The patient responded to treatment with prednisone alone, with a reduction in the size of the lesion. MALT lymphoma of the trachea is extremely rare, and there are only a few case reports of double cancer, i.e., MALT lymphoma of the trachea and breast cancer.

In 11 patients with respiratory tract infections, the concentrations of cefmenoxime (CMX) in serum and sputum after 1 hour intravenous administration of 2 g of CMX were investigated. The peak serum level of CMX was 102.2 +/- 11.4 micrograms/ml after 1 hour drip infusion, then declined and was 3.51 +/- 0.55 micrograms/ml after 5 hours. Sputum level of CMX was lower than serum level but it was able to cover enough for MIC of Haemophilus influenzae, Klebsiella pneumoniae, Escherichia coli, Streptococcus pneumoniae and the peak sputum level of CMX was 0.77 +/- 0.17 micrograms/g after from 2 hours to 4 hours. Among the 11 patients with respiratory tract infections, 2 patients showed excellent, 6 patients good, 3 patients poor results (isolated organisms of sputum were normal flora) and no side effects observed.