A 62-year-old male presents with a tender, irreducible bulge in the right groin below the inguinal ligament. What type of hernia is this and why does it carry the highest risk of strangulation?

Answer and explanation

Correct answer: B. Femoral hernia; high strangulation risk due to narrow femoral ring

  1. Step 1: A hernia located below and lateral to the pubic tubercle and inferior to the inguinal ligament enters the femoral canal.
  2. Step 2: The femoral ring is rigid, bordered by the inguinal ligament anteriorly, Cooper's ligament posteriorly, and lacunar ligament medially.
  3. Step 3: This tight unyielding ring causes a high rate of incarceration and strangulation (30-40%), mandating prompt surgical repair.
Answer
Femoral hernia; high strangulation risk due to narrow femoral ring.
Why not the others: 'Direct inguinal hernia; high strangulation risk through Hesselbach's triangle' passes above the inguinal ligament through a wide fascial defect with low strangulation risk; 'Indirect inguinal hernia; high risk' arises above the inguinal ligament via the deep inguinal ring; 'Obturator hernia; high risk due to compression of the obturator nerve' occurs deep in the obturator canal.

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A 62-year-old male… | Oman Medical Specialty Board Examination (OMSB)