The word hiatus means an interruption, break or gap. It can be a slight pause or a separation. It can be a break or interruption from work. It can be a missing piece.
"hiatal hernia" and "hiatus hernia"
Retroperitoneal is the medical term meaning behind the peritoneum. The kidneys and ureters are retroperitoneal.
Hiatus is a Latin word meaning opening, gap or rupture
The nasopharynx is the space behind the nose.
ABAFT
An abscess behind the tonsils is a retrotonsillar abscess.
Retropharyngeal is the medical term meaning behind the pharynx.
No such specific term and I guess you may call it retro renal
Bullous keratopathy is the medical term meaning blisters behind the cornea of the eye. The condition may be caused by eye surgery, eye trauma, or inflammatory eye disorders.
export hiatus
Retropharyngeal is the medical term meaning behind the pharynx, or throat.
Anterior, the front. As opposed to posterior, behind