Amyloidosis is defined as the presence of extra-cellular deposits of an insoluble fibrillar protein, amyloid. The pulmonary involvement of amyloidosis is usually classified as tracheobronchial, parenchymal nodular, or diffuse alveolar septal. A single nodular lesion can mimic various conditions, including malignancy, pulmonary tuberculosis, and fungal infection. To date, only one case of nodular pulmonary amyloidosis has been reported in Korea, a case involving multiple nodular lesions. Here, we report and discuss the case of a patient having single nodular amyloidosis.

Neurological deficits following microsurgical removal of tentorial meningiomas are transient in the majority of patients. The apparently high rate of incomplete tumor resection (app. 60% Simpson grades II and III) is due to the close topographical relationship of these tumors with important neurovascular structures. Thus, the operative strategy should not be excessively aggressive, but rather take into account the option to observe residual tumor or to apply additional stereotactic convergent beam radiation in selected cases.

The inclusion criteria were lesions ranging from 1 to 3 cm in length (long axis) and originating from the muscularis propria layer on endoscopic ultrasonography (EUS). The exclusion

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Background and Objectives: Radiofrequency ablation has recently been used for the treatment of benign thyroid nodules, with outstanding results. However, in most studies, the procedure was usually performed by a radiologist or surgeon. This study aimed to evaluate the efficacy and safety of radiofrequency ablation for nodules ＞2 cm performed by an endocrinologist with several years of experience performing fine-needle aspiration cytology. Materials and Methods: This study was a cross-sectional analysis of 111 patients who received radiofrequency ablation between April 2010 and July 2013. A total of 73 patients with 75 nodules ＞2 cm in diameter with at least 6 months of follow-up examinations were included. Results: The mean follow-up period was 11.5 months. The mean nodule volume decreased from 17.0±15.3 mL preoperatively to 6.0±8.5 mL postoperatively, with a mean volume reduction of 69.7%. There were no major complications, and only 1 patient (1.3%) presented with a minor complication (hemorrhaging of the thyroid parenchyma). Conclusion: Radiofrequency ablation is a safe method for reducing benign thyroid nodules, and is not associated with any major complications.