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Objective: To evaluate the factors that affect the success and complication rate of ureteroscopy for ureteral stone treatment in children., Materials and Methods: We retrospectively reviewed the records of children who were treated for ureteral stones at our institution from 2009 to 2011. The demographic data, stone size, stone location, number of stones, intraoperative complications, stone-free status, postoperative complications, and conversion to an open procedure were recorded., Results: A total of 54 ureteroscopic procedures were performed in 32 children. The mean age was 5.91 ± 4.98 years. Conversion to an open surgical procedure was required in 6 patients (18.75%). A significant relationship was found between conversion to an open procedure and patient age. Although the initial complete clearance rate was 57% after the first session, overall, the stone-free rate was 92.68%. A significant relationship was found between stone-free status and patient age and stone composition. Our overall complication rate was 9.7%. Only 1 major complication (2.4%) occurred. A significant relationship was found between the occurrence of complications and patient age., Conclusion: Ureteroscopy is an effective method to treat ureteral stones in children. Cystine stones and lower patient age carry a risk of not achieving a stone-free status. The complication rate and conversion to an open procedure were greater in patients <5 years old. Parents should be informed before treatment that their children might require multiple treatment sessions., (Copyright © 2013 Elsevier Inc. All rights reserved.)

Superficial epithelial ovarian tumors are unusual in adolescent girls (when compared with adult women) and extremely rare before menarche. Mucinous cystadenoma (MCA) in children that is a rare form of epithelial tumor is a benign cystic ovarian neoplasm. To our knowledge, there are only eight cases of mucinous cystadenoma, three of borderline mucinous cystadenoma, and three of mucinous cystadenocarcinoma reported in the English-language literature. We present a 14-year-old premenarchal girl with a giant ovarian mucinous cystadenoma. This review is supported by the finding that epithelial ovarian neoplasms are extremely rare prior to puberty and that only 14 mucinous tumors have been reported prior to menarche.