Fig. 1
From: The tip of the iceberg: lipomatous tumours presenting as abdominal or pelvic wall hernias
a Schematic coronal drawing of the anterior abdominal wall muscles with the typical hernia locations marked by circles with dotted lines. Abbreviations stand for: E epigastric, S Spigelian hernia (between rectus and oblique abdominal muscles), Div rectus divarication, I indirect inguinal hernia (lateral to the origin of the epigastric vessels), D direct inguinal hernia (medial to the epigastric vessels), F femoral (inferior to the inguinal ligament and medial to the femoral vein), U umbilical. b Schematic axial drawing of the abdomen with hernia locations marked by the circles with dotted lines. Anteriorly, in the midline there is the umbilical or paraumbilical hernia (small circle). Between the recti (orange) and the transverse (dark green), internal oblique (beige) and external oblique (light green) abdominal muscles there is the Spigelian hernia and the interparietal wall hernia also occurs here. Posterolaterally, the lumbar hernia arises between the internal oblique abdominal muscle and the quadratus lumborum muscle (red)