Anthropometric and Biochemical Assessment of Nutritional Status in Pediatric Cancer Patients. 
Children are at greater risk for malnutrition due to increased needs of nutrients to obtain appropriate growth, and they exhibit elevated substrate needs due to cancer and its treatment.  This study aimed to report anthropometric and biochemical evaluation of nutritional status in children with cancer at initial presentation and during treatment.  A prospective, controlled study was performed in the pediatric oncology department of a tertiary care center.  Control group consisted of the siblings of patients.  Weight, height, body mass index, triceps skinfold thickness, and serum levels of total protein, albumin, prealbumin, serum lipids, trace minerals, C-reactive protein (CRP), and vitamins were compared in patients and controls at initial presentation and at 6th month after the onset of treatment.  According to weight for height, the frequency of malnutrition was 16% at initial presentation and 22% at 6th month.  Triceps skinfold thickness was significantly thinner in patients than controls at both measurements.  Patients had lower levels of prealbumin, albumin, iron, folate, zinc, and vitamin C and higher levels of ferritin, vitamin B12, and copper.  Serum CRP levels were significantly higher in cancer patients at initial presentation and seemed to be correlated with copper levels.  Compared with other patients, malnourished patients had significantly higher levels of vitamin B12 at 6th month.  Results of the current study demonstrate that trace minerals, vitamins, and anthropometric measures may yield important clues for nutritional status and disease activity in pediatric oncology patients.  However, validation and updating these potential markers warrant further trials on larger series.