On physical examination, it is difficult to palpate the hernia sac as it is usually concealed beneath the pectineus muscle.
As in this case, the linear probe demonstrated that the hypoechoic mass was, in fact, edematous intestine wall deep to the pectineus muscle [Figure 1]b.
8] A branch to the pectineus muscle
is given off as the femoral nerve enters the femoral triangle.
A triangular region bordered by the superior pubic ramus, posterior margin of the pectineus muscle
and anterior aspect of the external obturator muscle containing the obturator vessels and nerve was defined and later used clinically to perform obturator nerve block with ultrasound guidance.
The pectineus muscle
generates low forces easily counteracted by other thigh muscles, and the saphenous and medial cutaneous sensory nerves are unessential to standing.
A multiloculated hydatid cyst between the iliopsoas and pectineus muscle
had been diagnosed using an ultrasonography and magnetic resonance imaging (MRI).