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Updated: Jan 23, 2026

Adult Mouse Venous Hypertension Model: Common Carotid Artery to External Jugular Vein Anastomosis.
Published on: January 27, 2015
Internal jugular vein tumor thrombus due to parapharyngeal extraosseous plasmacytoma
Catarina Oliveira1, Inês Rego1, Rui Ramos1
1Imaging Department, Centro Hospitalar Trás-os-Montes e Alto Douro, Avenida da Noruega, 5000 Vila Real, Portugal.
Abstract:
Tumor thrombosis of the internal jugular vein (IJV) represents an uncommon event, usually in the setting of underlying thyroid neoplasms. Extraosseous plasmacytoma (EMP) with tumor thrombosis of the IJV has not yet been reported in the literature. We present a unique case of a plasmacytoma in the left parapharyngeal space with direct extension to the left IJV, documented with contrast enhanced computed tomography and US Doppler. Presence of avid thrombus enhancement allowed differentiation between tumoral extension and thrombothic changes.
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