Surgery MCQs Q11

FreeMedSite MCQ Decoder - Testicular Torsion Case 2
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SURGERY • UROLOGY

A 16-year-old boy presents to the emergency department with sudden onset of severe scrotal pain that started while he was resting. The pain is associated with scrotal swelling and tenderness. On examination, the affected testis is very tender and swollen.

Which of the following statements regarding acute testicular torsion is most accurate?

A It is always seen in elderly thin laborers
B It can present with dysuria and hematuria
C Surgical intervention can be delayed
D It is characterized by sudden severe testicular pain with tender swelling and usually affects one testis

Testicular torsion is a urological emergency caused by twisting of the spermatic cord, compromising blood supply. Immediate surgical exploration and detorsion is required to save the testis, ideally within 6 hours.

Decoding Clue

1
CLUE "Sudden onset of severe scrotal pain"
TRANS The hallmark symptom indicating rapid twisting of the spermatic cord and resulting ischemia. Often unilateral.
2
CLUE "Tender and swollen testis"
TRANS Mechanical venous outflow obstruction rapidly leads to edema and tenderness prior to complete arterial occlusion.
3
CLUE "Started while he was resting"
TRANS Can occur spontaneously, during sleep, or after trauma. Usually linked to the underlying "bell-clapper" anatomical predisposition.

Differential Breakdown

A. Elderly thin laborers: Incorrect. This demographic and descriptor is typical for an obturator hernia. Torsion most commonly occurs in adolescents and young males.

B. Dysuria and hematuria: Incorrect. These symptoms are more suggestive of an infectious or stone etiology such as urinary tract infection or epididymo-orchitis, not torsion.

C. Surgical intervention can be delayed: Incorrect. Immediate surgical exploration is strictly required because testicular viability rapidly decreases and is usually lost after 6–8 hours.

High-Yield Takeaway

"Testicular torsion is a surgical emergency characterized by sudden severe unilateral scrotal pain. The salvage rate is highest within 6 hours. Both testes must be fixed during surgery (orchiopexy) to prevent recurrence."

Relevant High-Yield Challenges

Challenge #1: Surgical Necessity

Because the anatomical predisposition (Bell-clapper deformity) is usually bilateral, what must be done to the contralateral testis during surgery?

Answer: Contralateral orchidopexy (fixation) to prevent future torsion.

Challenge #2: Pathognomonic Sign

What is the name of the classic anatomical abnormality found in approximately 90% of torsion patients?

Answer: Bell-clapper deformity.

Challenge #3: The Golden Window

What is the salvage rate if detorsion is performed within the first 6 hours of symptom onset?

Answer: Approximately 90-100%. This drops significantly after 12 hours.

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