Cystic Hygroma of the Neck: Association with a Growing Venous Aneurysm
Erini Makarioua,
Andreas Pikisc and
Earl H. Harleyb
a Department of Radiology, Georgetown University Medical Center, Washington, DC
b Department of Otolaryngology-Head and Neck Surgery, Georgetown University Medical Center, Washington, DC
c National Institute of Dental and Craniofacial Research, Oral Infection and Immunity Branch, Bethesda, MD
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FIG 1. Images from the case of a 4-year-old child with a cystic hygroma. Comparison with images obtained at the age of 2 years.
A, Axial postcontrast CT image of the neck at the level of the mandibular angle obtained during the current admission. It shows the cystic hygroma to be increased in size and the vascular structure to be markedly enlarged (arrow).
B, Pulsed Doppler sonography image of the neck posterior to the left mandibular angle shows spectra with slow-velocity blood flow from the ovoid vascular lesion (obtained during current admission).
C, Axial postcontrast CT image of the neck obtained at the age of 2 years reveals bilateral multiloculated cystic hygromas more prominent over the left side. A well-defined ovoid vascular structure (arrow) is seen within a cystic sac posterior to the mandibular angle.
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FIG 2. Intraoperative image demonstrates a large aneurysm (arrow) adjacent to an intact parotid gland. The aneurysm originated from the left posterior facial vein.
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