T.Tamura

Primary Mucinous Cystadenoma Arising from Behind the Posterior Peritoneum of the Descending Colon in a Child: A Case Report

This is the first report of a primary mucinous cystadenoma (MCA) arising from behind the posterior peritoneum of the descending colon in a paediatric patient. A large intra-abdominal cystic lesion was found incidentally during renal ultrasonography in a 14-year-old girl. Imaging studies showed a 13 x 9 x 15 cm homogeneous cystic lesion with mild contrast enhancement of the wall. The cyst appeared to originate from the retroperitoneum, but was separated from the left kidney, ovary, and pancreas. At laparotomy, there was a cyst behind the posterior peritoneum of the descending colon. The cyst was successfully excised, and histopathology showed MCA. Although primary MCA in the retroperitoneum is extremely rare in children, it should be considered in the differential diagnosis of an intra-abdominal cyst, since it needs to be excised to eliminate the risk of infection, recurrence, and malignancy.

Management of a Prenatally Diagnosed Huge Teratoma Arising from the Soft Palate

Teratomas arising from the oral cavity are relatively rare and can cause life-threatening airway obstruction immediately after birth. We report a case of a huge teratoma arising from the soft palate detected prenatally. To save the patient, a caesarean section and ex utero intrapartum treatment (EXIT) were planned at 29 weeks of gestation. However, during EXIT, the patients cardiopulmonary status deteriorated due to unstable cord blood flow secondary to uterine contractions. EXIT was abandoned, the patient was delivered and an emergency tracheotomy performed. The tumour was successfully excised 4 hours after tracheotomy. The tumour weighed 1,591 g and was 20 x 22 x 12 cm. The patient, a female, weighed 715 g. Histopathology showed Grade II teratoma. The postoperative course was uneventful and she is now 5 years old with no neurological sequelae. EXIT is indicated in patients who have a high risk for airway obstruction immediately after birth. However, if EXIT must be abandoned, as in this case, urgent tracheotomy is mandatory. Planned prevention of airway obstruction at delivery is indispensable for successful outcome and requires excellent coordination among obstetricians, neonatologists, anaesthesiologists and paediatric surgeons.

Physical Society of Japan : Recent Results from the LHCf Experiment

The LHCf experiment is an unique dedicated experiment for measurement of very forward particle production relevant to cosmic-ray air shower developments. The LHCf measured the spectra for forward photons, neutral pions and neutrons at

Liver transplantation for deterioration in native liver function after portoenterostomy for biliary atresia in Japan: Short- versus long-term survivors

\sqrt{s}

LHCf: Very forward measurement at LHC p-p and p-Pb

= 7 TeV p–p collisions and the nuclear modification factor for forward neutral pions at

Optimum prednisolone usage in patients with biliary atresia postportoenterostomy

\sqrt{s}

Maternal microchimerism in biliary atresia

= 5 TeV p-Pb. No hadronic interaction models used in air shower developments of very high energy cosmic-rays is able to reproduce all LHCf data reasonably while some of models are able to reproduce LHCf data partially.

Inchin-ko-to prevents medium-term liver fibrosis in postoperative biliary atresia patients

PURPOSE We reviewed our post-Kasai portoenterostomy biliary atresia (BA) patients who required liver transplantation (LTx) for deterioration in native liver (NL) function to investigate mortality in relation to age at LTx. METHODS BA patients indicated for LTx when less than 18years old (U18; n=17) and when 18 or older (18+; n=13) were compared. All achieved jaundice clearance postoperatively (TBil ≤1.2mg/dL (≈20μmol/L)). RESULTS In U18, living-donor (LD) LTxs were performed at a median of 6.1years (range: 0.5-16.7; n=14) and cadaveric (CD) LTxs at a median of 1.3years (1.1-1.5; n=3). In 18+, LDLTxs were performed at a median of 28years (18-37; n=8), and 1 case died from graft versus host disease. CDLTxs were indicated in 5, but 4 died at a median of 30years (26-32), a mean of 1.4years (0.7-1.8) after NL deterioration commenced. One case is awaiting CDLTx. At the time of review, all U18 and 7 LDLTx cases in 18+ were clinically stable. Mortality rates were 0% in U18 and 38% in 18+ (P=.006). CONCLUSION Our results highlight the extremely grave prognosis for long-term BA patients requiring LTx when 18 or older because of poor donor availability in Japan. LEVEL OF EVIDENCE Level III.

The role of monocyte chemoattractant protein-1 in biliary atresia

H. Menjo, O. Adriani, E. Berti, L. Bonechi, M. Bongi, G. Castellini, R. D’Alessandro, M. Del Prete, M. Haguenauer, Y. Itow, K. Kasahara, K. Kawade, Y. Makino, K. Masuda, E. Matsubayashi, G. Mitsuka, Y. Muraki, P. Papini, A-L. Perrot, D. Pfeiffer, S. Ricciarini, T. Sako, Y. Shimizu, Y. Sugiura, T. Suzuki, T.Tamura, A. Tiberio, S. Torii, A. Tricomi, W.C. Turner, Q. Zhou 1 Graduate school of Science, Nagoya University, Japan 2 INFN Section of Florence, Italy 3 Physics and Astronomy Department, University of Florence, Italy 4 IFAC-CNR, Italy 5 Ecole-Polytechnique, France 6 Solar-Terrestrial Environment Laboratory, Nagoya University, Japan 7 Kobayashi-Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Japan 8 RISE, Waseda University, Japan 9 CERN, Switzerland 10 JAXA, Japan 11 Kanagawa University, Japan 12 INFN Section of Catania, Italy 13 University of Catania, Italy 14 LBNL, Berkeley, USA