Aspergillus is a ubiquitous fungus and can cause many levels of disease severity. Chronic necrotizing aspergillosis is a rare disease and few cases have been reported in Korea. We experienced a case of pleural aspergillosis that was treated successfully with medical and surgical interventions. The 52-year-old man who was diagnosed with chronic necrotizing pulmonary aspergillosis underwent surgical treatment including a lobectomy, decortication, and myoplasty. The patient was also medically treated with amphotericin B followed by voriconazole. Pleural irrigation with amphotericin B was also performed. A multi-dimensional approach should be considered for treating chronic necrotizing pulmonary aspergillosis.
Effects of seed layers on the properties of Mo and AlN/Mo (AlN on Mo) films were extensively investigated for developing high-Q film bulk acoustic resonator (FBAR) devices. The Mo films deposited onto a Ti seed layer were more textured and smoother than those deposited with no seed layer, whereas the use of Cr and Ta seed layers degraded the quality of Mo films. The influence of Mo sputtering conditions on the quality of Mo films was also checked, but the effect was negligible in the case of using a Ti seed layer. The AlN films deposited on top of Mo films with a Ti seed layer showed better c-axis orientation and smoother surface morphology than the AlN films without any seed layers. The AlN/Mo films with a Ti seed layer had full width at half-maximum (FWHM) values ranging from 1.6° to 1.8° and surface roughness ranging from 6.0 to 7.4 Å, while the AlN/Mo films without any seed layers had a FWHM value of 3.6° and surface roughness of 12.6 Å. It is considered that properties of AlN films are very dependent on the quality of the bottom electrodes. Film bulk acoustic resonators in the form of a membrane type were fabricated by using a bulk micromachining method and their resonance characteristics were measured and compared. The resonator comprised of Mo/AlN/Mo/Ti/membrane films had an effective mechanical coupling coefficient of 7.3% and a quality factor of 1514, while the resonator without a Ti seed layer had an effective mechanical coupling coefficient of 6.9% and a quality factor of 630, respectively.
A 75-year-old man who was diagnosed as having a fluid-filled giant bulla was treated with a modified Brompton technique due to his poor performance status. Percutaneous drainage, suction, and talc sclerotherapy through a Foley catheter can be good treatment options for patients with conditions that are too poor to allow surgical intervention, especially if there is adhesion between a giant bulla and parietal pleura. Talc can also be used safely when mixed with normal saline as a sclerosant.
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