Sometimes a constriction occurs across the sac at the level of Poupart's ligament.
"Manual of Surgery" by Alexis Thomson and Alexander Miles
Immediately above the middle of Poupart's ligament, at the point E, Pl.
"Surgical Anatomy" by Joseph Maclise
In a few cases the cellulitis mounts above Poupart's ligament, between the peritoneum and the abdominal wall.
"A System of Practical Medicine by American Authors, Vol. I" by Various