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Guidelines: Inguinal nodes
subsite
limits
image
recommendations
Cranial:
Where the
deep circumflex vein
crosses the external
iliac artery.
Alternatively (if
difficult detection on
CT images) between
the acetabulum roof
and the superior pubic
rami
Caudal:
Where the
great saphenous vein
enters the femoral
vein
Anterior:
At least 20
mm margin around
inguinal vessels
including any visible
lymph nodes or
lymphocoeles
Posterior:
The
femoral triangle
formed by iliopsoas,
pectineus and
abductor longus
muscles
Medial:
10-20 mm
margin around the
femoral vessels
including any visible
lymph nodes or
lymphocoeles
Lateral:
Medial edge
of the sartorius or
iliopsoas muscles
Include when there is
infiltration of the external
anal sphincter or the ischio-
rectal fossa
Inguinal nodes