Background The location of the sigmoid sinus within the mastoid cavity is quite variable. An anteriorly- displaced vertical segment of the sigmoid sinus constitutes an uncommon but dangerous anatomical variation that surgeons rarely encounter during surgery. In this variation, the sigmoid sinus lays underneath a very thin bony flap, which makes it easily damaged. Thus, an abrupt fatal bleeding ...

The digastric muscle is formed by two muscle bellies: one anterior and one posterior, joined by an intermediate tendon. It is localized in the anterior cervical region. The anterior belly divides the region between the hyoid bone and the mandible into two: laterally the submandibular triangle, and medially the submental triangle. The anatomical variations described in the literature relate to t...

A numerical anomaly of the celiac trunk and anatomical variation in origin, and course of the dorsal pancreatic artery were encountered during a routine upper abdomen dissection of a 62-year-old male cadaver. The aim of this study was to describe a rare celiac trunk and dorsal pancreatic artery variation in detail, which can be a guide and precaution during operative procedures in this region. ...