A great saphenous vein aneurysm in a child: A rare disorder misdiagnosed as an inguinal hernia

We report a case of primary great saphenous vein aneurysm (GSVA) in a 3 years old girl. A growing mass at the right groin region had been detected in the upright position during the last two years, which was misdiagnosed as inguinal hernia at the referral hospital. The Doppler ultrasound scanning (DUS) showed the findings of GSVA such as the 2 cm soft cystic mass from the great saphenous vein accompanying with the turbulence flow, whereas with no vein thrombosis. GSVA was resected after the ligation of the distal part of the great saphena vein. There was no sign of the recurrence in 1-year follow up at the outpatient examination. Primary GSVAs are rare lesion and were often misdiagnosed and confused as soft tissue tumor or inguinal hernia (J.S. de Miranda et al., 2015; G.A. Ranero-Juárez et al., 2005). As the diagnostic imaging for GSVAs, DUS is therefore effective in detecting the aneurysms and the presence of a thrombus.