We herein report a 10-month-old female infant with a 4-month history of diarrhea with electrolyte abnormalities and growth impairment. A 4-cm right adrenal tumor was detected by computed tomography. No metastasis or accumulation on I123-metaiodobenzylguanidine scintigraphy was recognized in the tumor. A vasoactive intestinal peptide-secreting neuroblastic tumor was suspected, and octreotide was started, but the diarrhea persisted. Tumor extirpation was performed laparoscopically. After tumor removal, the symptoms improved immediately, and her growth caught up by nine months after surgery. A minimally invasive approach for pediatric solid tumor is difficult, especially for neuroblastoma, but may be beneficial for the patient's recovery.