Lymphangiomas or cystic hygromas are quite commonly seen in children. During a 22-year period, from January 1980 to December 2001, 117 patients with lymphangioma were treated and followed in the Department of Pediatric Surgery at Hanyang University Hospital. The male-to-female ratio was 1.9:1(77:40) with a male preponderance. As for the age incidence at time of diagnosis, 10(8.5 %) patients were noted under 1 month of age, 37(31.6%) were between 1 month and 1 year of age, 12(10.3%) between 1 and 2 years of age, so 59(50.4%) were under 2 years of age. Sixty one (52.1%) lymphangioma-cases were located in the neck, including one case at the nape. Axilla was the second in frequency and the rest were scattered at various sites. The intrascrotal lymphangioma is very rare but we have experienced one case of primary intrascrotal lymphangioma. Eighteen (15.4%) cases were located in the intraabdominal area, 10 in the mesentery, 2 in the greater omentum and 6 in the retroperitoneum. The chief complaints of intraabdominal lymphangioma were abdominal pain, intestinal obstruction, inguinal hernia, palpable mass, and/or abdominal distension. Among 77 histologically proven cases, 14 cases were cavernous lymphangiomas and the rest were cystic lymphangiomas. Bleeding in the lymphangioma was noted in 20(17.1%) cases of all. As for the treatment, a complete excision was performed in 77(65.8%) patients and $AgNO_3$ sclerotherapy after incomplete excision was performed in 23(19.7%). Picibanil (OK-432) sclerotherapy was performed in 17(14.5%) patients. Recurrence rate was 7.7 % and mortality occurred in one case who had a large neck lymphangioma extending into the mediastinum.