Radio-frequency thermal ablation is one of the most promising minimally invasive techniques for the treatment of nonresectable hepatic tumors. Essential technical tips to successful radio-frequency ablation therapy were collected from five international experts. They were organized into five categories: understanding the mechanisms and principles of radio-frequency ablation, modulation of tissue physiologic characteristics to increase tumor destruction, strategies of overlapping ablations, strategies to improve ablation according to tumor location, and imaging strategies after ablation to ensure adequate therapy. Established factors for optimal ablation, as well as emerging technical tips, are addressed with illustrations in each section. These essential tips will be very helpful for physicians performing radio-frequency ablation of hepatic tumors.

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Our results showed that differences exist in the sonographic features of screening-detected and symptomatic DCIS. Recognition of the many and varied sonographic appearances of DCIS might be helpful to decrease the false-negative rate of bilateral whole-breast sonography and to detect symptomatic mammographically occult DCIS when we use sonography to supplement mammography.

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Renal hemangioma is an uncommon benign tumor which usually causes painless or painful gross hematuria. Its preoperative diagnosis is extremely difficult or even impossible.We experienced three cases of renal hemangioma, located mainly at the pelvocalyceal junction or in the inner medulla. US demonstrated variable echogenecity, and CT revealed a lack of significant enhancement. Where there is gross hematuria in a young adult, especially when the renal mass located in the pelvocalyceal junction or inner medulla shows little enhancement on CT, renal hemangioma should form part of the differential diagnosis.

Perihepatits commonly occurs in PID; 59% of PID patients in this study had perihepatitis. The predominant site was the right anteroinferior hepatic surface. Perihepatitis seems not to be associated with various CT findings of PID reflecting disease severity, except oophoritis and upper extension of mesenteric infiltration.

The development of HOs in abdominal incisions is a common finding and may be self-limiting. The upper midline incision seems to affect its incidence not uniquely.

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