• Toru Watanabe, Tomoka Matsuda, Ryoichi Kitagata, Iwao Tajima, Hiroyuki Ono, Keiko Hirano, Masami Shirai, Akira Endoh, and Teruaki Hongo.
• Department of Pediatrics, Iwata City Hospital, Iwata, Japan.
• Pediatr Int. 2014 Oct 1; 56 (5): e68-71.

AbstractWe report the case of a 6-month-old boy with transient renal dysfunction who had an intensified signal in the splenium of the corpus callosum on magnetic resonance imaging. He presented to hospital with fever and sudden disturbance of consciousness. Cerebrospinal fluid analysis did not show pleocytosis. The mild consciousness disturbance disappeared after 30 min, but the splenial signal persisted even after 8 days. Further, renal glucosuria, increased excretion of select amino acids, and abnormal fractional excretion of electrolytes were observed, indicating renal tubular dysfunction. The abnormal urinary findings spontaneously resolved by day 9 of hospitalization. The splenial lesion took 21 days to normalize. There were no signs of neurological complications 2 months later. This case suggests the possibility of renal involvement in splenial lesions.© 2014 Japan Pediatric Society.

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