Mohammad Afzal Khan, Faris Mohammed Nour Altaf, Muhammad Mazhar Hijazi.
A Cascade Of Unicuspid Valves In The Internal Jugular Vein.
Khyber Med Uni Med J Jan ;8(3):147-8.

We are reporting here a unique cascade-like arrangement of single cusps in the right internal jugular vein observed in a formalin-fixed embalmed cadaver of a 65 year old male which has not been observed and described in the literature. The anomaly may be of interest not only to the morphologist but also to the clinical practitioner working on the internal jugular veins.

PakMediNet -Pakistan's largest Database of Pakistani Medical Journals - http://www.pakmedinet.com