Ultrasound Doppler of the right cervical region performed on 6 November 2019: signs of an enlarged right internal jugular vein with heterogeneous echogenic material (a) over its entire height and taken over by collaterals, which led to the diagnosis of a recent thrombosis of the right internal jugular vein; signs of an infiltration and thickening of soft cervical tissue (b); numerous right cervical infracentimetric lymph nodes; no abscess of the soft parts of the sterno-cleido-mastoid muscle (c) was observed.