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General Surgery · Hernia: Spigelian hernia
Sample itemA 60-year-old woman has localised pain and a small tender swelling lateral to the rectus sheath, below the umbilicus. It is visible only on straining and the external oblique aponeurosis is intact. Which hernia is it?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Spigelian hernia
A Spigelian hernia protrudes through the linea semilunaris, most often near the arcuate line below the umbilicus. It is usually interparietal, lying beneath an intact external oblique aponeurosis, so it is easily missed clinically, and ultrasound or CT confirms it. Repair is advised because the neck is narrow and strangulation is common.
Option by option
A. Spigelian hernia (correct)
Correct. A defect at the linea semilunaris near the arcuate line is characteristic.
B. Direct inguinal hernia
Direct inguinal hernia occurs through Hesselbach's triangle above the inguinal ligament.
C. Obturator hernia
Obturator hernia presents with medial thigh pain and obstruction, not an abdominal wall swelling.
D. Epigastric hernia
Epigastric hernia occurs in the midline linea alba above the umbilicus.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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