We report a case of adrenal schwannoma, an extremely rare retroperitoneal neoplasm. The patient was a 33-year-old man who presented with an abdominal mass that was discovered at abdominal sonography. Computed tomography showed an 8-cm well-circumscribed homogeneous mass that enhanced slightly after intravenous administration of contrast material. Magnetic resonance imaging showed low signal intensity on T1-weighted images and heterogeneously high signal intensity on T2-weighted images. Although these imaging findings are nonspecific, adrenal schwannomas should be included in the differential diagnosis of solid nonfunctioning adrenal tumors.

An elevation of serum PSA levels after radical prostatectomy was a sensitive indicator of persistent disease after surgery, and preceded clinical manifestations of disease progression.

1) It was possible that the smallest amount of the total energy went through the fragment at the pulse duration 150 microsec. 2) The maximum amount of energy of the wave is higher when the pulse duration is short. Although the amount of energy was 12.6 V, the amounts of energy at 800 microsec decreased with a pulse duration 150 microsec. to 6.46 V which was about 40 % 3) The highest temperatures achieved when the irradiation of laser was started and finished were compared. The shorter the pulse duration was, the higher was the peak power. The shock wave was also more effective to disintegrate stones on using short pulse durations. 4) The individual clinical success rates are Ho:YAG (85.1 %), Alexandrite (80.6 %) and Lithoclast (74.5 %).

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