Abstract
A 9-year-old girl presented with a right supraclavicular mass that had persisted for a month. She visited a clinic because the mass started to increase in size. An US evaluation revealed a 35 mm cystic mass with blood flow in the right supraclavicular region. She was referred to our hospital for further investigation. The blood flow was confirmed in the mass by dynamic CT. We suspected a venous aneurysm (VA) because the contrast enhancement in the mass was poor in the arterial phase on the obtained dynamic CT images. We resected the VA because the patient complained of pain in the right supraclavicular region. Intraoperatively, the mass was found to be 50 × 35 mm in size, connected to the right external jugular vein, and to contain a thrombus. We diagnosed the mass as VA. Following surgery, the patient has remained asymptomatic for more than one year. VA is a rare disease, especially in children, and different from varix. VAs in the head and neck regions are typically asymptomatic. However, we recommend resection if possible for VA patients, especially symptomatic patients, such as our present patient.
