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1.  One-stage laparoscopic surgery for inspissated bile syndrome: case report and review of surgical techniques 
SpringerPlus  2013;2:648.
Inspissated bile syndrome in a 6 week old boy was unresponsive to oral ursodesoxycholic acid. Intraoperative cholangiography revealed complete obstruction of the common bile duct. Therefore, the gallbladder fundus was pulled out through a laparoscopy port site and sutured to the fascia. A catheter was positioned into the infundibulum for irrigation with ursodesoxycholic acid. At day 8 complete resolution of the plug and free passage of contrast medium into the duodenum was documented radiologically. The catheter was removed, skin closed spontaneously without a second surgery for closure of the gall bladder.
PMCID: PMC3862908  PMID: 24349952
2.  Hematometra presenting as an acute abdomen in a 13-year-old postmenarchal girl: a case report 
Most underlying diseases for abdominal pain in children are not dangerous. However some require rapid diagnosis and treatment, such as acute ovarian torsion or appendicitis. Since reaching a diagnosis can be difficult, and delayed treatment of potentially dangerous diseases might have significant consequences, exploratory laparoscopy is a diagnostic and therapeutic option for patients who have unclear and potentially hazardous abdominal diseases. Here we describe a case where the anomaly could not be identified using a laparoscopy in an adolescent girl with acute abdomen.
Case presentation
A 13-year old postmenarchal caucasian female presented with an acute abdomen. Emergency sonography could not exclude ovarian torsion. Accurate diagnosis and treatment were achieved only after an initial laparoscopy followed by a laparotomy and after a magnetic resonance imaging scan a further laparotomy. The underlying disease was hematometra of the right uterine horn in a uterus didelphys in conjunction with an imperforate right cervix.
This report demonstrates that the usual approach for patients with acute abdominal pain may not be sufficient in emergency situations.
PMCID: PMC3543215  PMID: 23234497
Adolescent; Acute abdomen; Genital malformation; Hematometra; Uterus didelphys
3.  Phase II study of oral capsular 4-hydroxyphenylretinamide (4-HPR/fenretinide) in pediatric patients with refractory or recurrent neuroblastoma: A report from the Children’s Oncology Group NSC #374551; IND# 40294 
To determine the response rate to oral capsular fenretinide in children with recurrent or biopsy proven refractory high-risk neuroblastoma.
Experimental Design
Patients received 7 days of fenretinide: 2475 mg/m2/day divided TID (<18 years) or 1800 mg/m2/day divided BID (≥18 years) every 21 days for a maximum of 30 courses. Patients with stable or responding disease after course 30 could request additional compassionate courses. Best response by course 8 was evaluated in Stratum 1 (measurable disease on CT/MRI +/− bone marrow and/or MIBG avid sites) and Stratum 2 (bone marrow and/or MIBG avid sites only).
Sixty-two eligible patients, median age 5 years (range 0.6–19.9), were treated in Stratum 1 (n=38) and Stratum 2 (n=24). One partial response (PR) was seen in Stratum 2 (n=24 evaluable). No responses were seen in Stratum 1 (n=35 evaluable). Prolonged stable disease (SD) was seen in 7 patients in Stratum 1 and 6 patients in Stratum 2 for 4–45+ (median 15) courses. Median time to progression was 40 days (range 17–506) for Stratum 1 and 48 days (range 17–892) for Stratum 2. Mean 4-HPR steady state trough plasma concentrations were 7.25 µM (coefficient of variation 40–56%) at day 7 course 1. Toxicities were mild and reversible.
Although neither stratum met protocol criteria for efficacy, 1 PR + 13 prolonged SD occurred in 14/59 (24%) of evaluable patients. Low bioavailability may have limited fenretinide activity. Novel fenretinide formulations with improved bioavailability are currently in pediatric Phase I studies.
PMCID: PMC3207022  PMID: 21908574
fenretinide; neuroblastoma; Phase II; ANBL0321
4.  Intramural and subserosal echogenic foci on ultrasound in large bowel intussusception. Prognostic indicator for reducibility? 
Pediatric radiology  2008;39(1):42-46.
In large bowel intussusceptions, several reports described US signs which are associated with a lower likelihood of reducibility by hydrostatic or pneumatic enema. US may demonstrate echogenic dots or lines (foci) in the bowel wall, which may indicate ischemic bowel.
To determine the presence of echogenic intramural and subserosal foci and trapped gas in large bowel intussusceptions and to correlate with the reducibility.
Material and methods
Between 2001 and 2008, 74 consecutive US examinations of large bowel intussusception were retrospectively evaluated by 2 pediatric radiologists for intramural, subserosal echogenic foci (gas) or trapped gas in the intussusception. The sonographic findings were correlated with the hydrostatic or pneumatic reducibility.
In 73 US examinations with large bowel intussusception, 56 (76%) were reducible and 17 (23%) were not reducible. Eight out of ten (80%) patients with intramural gas, six out of eleven (56%) with subserosal gas and nine out of fourteen (64%) with intramural and/or subserosal gas had non reducible intussusceptions. Univariate analysis of the above predictors found intramural gas and/or subserosal gas significantly influential. Multivariate analysis however proved only intramural gas to be the significant predictor, in presence of subserosal gas, of fluoroscopic reducibility
Having sonographically detected intramural gas in large bowel intussusception, significantly decreases the chance of intussusception reduction
PMCID: PMC2717037  PMID: 18982323

Results 1-4 (4)