Children with metastatic cancer who develop headaches or any other neurologic symptom should be investigated for possible brain metastasis. Although, the outcome for these patients is dismal in this series and in the literature; reports of long term survival in a few cases with Wilms' tumor, osteosarcoma and alveolar soft part sarcoma who had isolated brain metastasis, suggest that a subset of patients may benefit from therapy.

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Medical records of 71 children with Wilms' tumor at Sisli Etfal Education and Research Hospital between 1990 and 2014 were reviewed. Mean age at diagnosis was 3.11 years (2 days-7 years). Male to female ratio was M/F = 6/10. The incidence of associated anomaly was 16.9%. Clinical manifestations included abdominal mass (89%), hematuria (30%), hypertansion (25%), abdominal pain (15%), fever (5%), restlessness (2%), weight loss (2%), varicocele (1%). Ultrasound (USG) was the most often initial study in a child presenting with abdominal mass. Doppler USG was also made to evaluate the inferior vena cava (IVC) for the presence of tumor extension in children with renal mass. The left kidney was affected in 33 patients (46.5%), the right was affected in 31 patients (43.7%). Two patients was extrarenal (2.8%). And 5 patients (7.04%) were bilateral on the presentation. Preoperative chemotheraphy was done in 14 cases. In 63 patients with unilateral Wilm tm, unilateral radical nefrectomy is performed. In one patient with solitary kidney, nephron sparing surgery (NSS) is performed. In 3 patients with bilateral tm NSS is performed and in 2 patients with bilateral Wilms' tm NSS is performed in one side and nefrectomy on the other side. Out of 71 Wilms tumor (WT) patients, 17 of them has been out of our follow. And 4 of them are died. Ten of them has metastases. Forty children are under follow with no metastases. Patients with WT needs a multimodal, multidisiplinary treatment with the cooperation of pediatric oncologist and pediatric surgeon and needs close follow-up.

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BACKGROUND AND OBJECTIVES:Hepatitis B is a disease that is preventable with vaccination. Antibody levels after vaccination may be affected by suppression of the immune system due to cancer therapy. Children with cancer have a high risk of hepatitis B virus (HBV) infection. We aimed to assess the pretreatment immunization status against HBV infection and the rate of continuity of immunization after therapy in children with cancer.DESIGN AND SETTING:Retrospective case review of patients treated from 2004 to 2008.PATIENTS AND METHODS:We reviewed the medical records of patients treated in the departments of pediatric hematology and oncology and collected data on immunization history and hepatitis B serology. Anti-HBs antibody titers were compared before and after treatment.RESULTS:This study included 159 (99 males, 60 females) children who had a serologic examination. Antineoplastic therapy had been given for acute leukemia (n=66), non-Hodgkin lymphoma (n=27), Hodgkin lymphoma (n=20), and solid tumors (n=46). Fifty-one patients had not been immunized against HBV prior to the therapy; HBV serology was negative in 49 of these patients and HBsAg was positive in 2 patients. Anti-HBs antibody positivity was present in 99 of 108 patients with an immunization history, whereas no vaccination response was present in 9 patients. The titer of anti-HBs antibody was decreased below the protection level in 33 (33%) patients with positive anti-HBs antibody, whereas the protection level was found to be maintained in 66 (67%) patients. The most significant decrease (63.6%) was observed in leukemia patients. Posttreatment HBsAg and HBV DNA positivity was detected in two of the patients with negative pretreatment serology, whereas no HBV infection developed in the group with positive anti-HBs antibody.CONCLUSIONS:This study demonstrated the importance of routine childhood vaccination in reducing the risk of HBV infection in patients with cancer.