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Difficulty: MediumUrologic Surgery

A 64-year-old man is evaluated in the emergency department for severe perineal and scrotal pain that has progressively worsened over the past 3 days. He has a history of poorly controlled type 2 diabetes mellitus and hypertension. His temperature is 39.2∘C39.2^\circ\text{C} (102.6∘F102.6^\circ\text{F}), pulse is 118/min118/\text{min}, respirations are 22/min22/\text{min}, and blood pressure is 88/54 mmHg88/54\text{ mmHg}. Physical examination reveals a markedly swollen, tense, and erythematous scrotum with areas of dusky discoloration. Palpation of the scrotum and perineum elicits exquisite tenderness, and distinct crepitus is felt within the subcutaneous tissues. Laboratory studies show a leukocyte count of 24,000/mm324,000/\text{mm}^3 and a serum glucose of 310 mg/dL310\text{ mg/dL}. Which of the following is the most appropriate next step in the management of this patient?

  1. Emergent surgical exploration and debridementAnswer
  2. B
    Intravenous administration of broad-spectrum antibiotics and close observation
  3. C
    Computed tomography scan of the abdomen and pelvis with intravenous contrast
  4. D
    Scrotal ultrasonography with Doppler color flow
  5. E
    Bedside incision and drainage of the scrotal wall

Answer

Emergent surgical exploration and debridement
The correct answer is emergent surgical exploration and debridement. This patient's presentation is highly characteristic of Fournier gangrene, a rapidly progressive and life-threatening polymicrobial necrotizing fasciitis of the perineal and genital fascia. Classic clinical features include severe pain out of proportion to early physical findings, tense edema, dusky or purplish discoloration of the skin, and subcutaneous crepitus (due to gas-producing organisms). It most commonly affects older men with poorly controlled diabetes mellitus or immunocompromise. Fournier gangrene is a true urologic and surgical emergency. Because the infection spreads rapidly along fascial planes (Colles, Dartos, and Scarpa fascia) and causes microvascular thrombosis and tissue necrosis, patients rapidly develop septic shock. Immediate management consists of aggressive intravenous fluid resuscitation, broad-spectrum intravenous antibiotics, and most importantly, emergent radical surgical debridement of all nonviable tissue in the operating room.

Step-by-Step Solution

1
Identify the primary clinical syndrome based on the patient's presentation.
The patient has severe scrotal/perineal pain, dusky discoloration, and crepitus (subcutaneous gas) along with septic shock (hypotension, tachycardia, fever, leukocytosis) and a history of poorly controlled diabetes.
Recognizing these classic signs points directly to Fournier gangrene (necrotizing fasciitis of the perineum).
2
Determine the urgency and necessary intervention for the diagnosed condition.
Fournier gangrene is a rapidly progressive and highly lethal surgical emergency.
Source control via wide excision of necrotic tissue is required immediately; medical management alone is universally fatal.
3
Evaluate the choices to select the definitive immediate management.
Immediate transport to the operating room for surgical exploration and debridement is the most appropriate next step.
Diagnostic imaging or conservative therapy would delay life-saving treatment in this hemodynamically unstable patient.

Key Concept

Fournier gangrene is a polymicrobial necrotizing fasciitis of the perineal, perianal, and genital regions that requires immediate fluid resuscitation, broad-spectrum antibiotics, and emergent surgical debridement. Diagnosis is clinical, and imaging should not delay surgical intervention, especially in hemodynamically unstable patients.
Estimated Time:1m 15s
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Topics

Urologic Surgery

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