A 38-year-old man with a history of Crohn disease presents with severe perianal pain and fever (39.2°C). Vital signs show BP 128/82, HR 102, RR 18, SpO2 98% on room air. Examination reveals a fluctuant abscess in the ischioanal fossa. MRI confirms a 4×3 cm fluid collection. Lab work shows WBC 13,200/μL; blood cultures remain pending. He denies recent trauma. During surgical drainage, the surgeon carefully avoids the critical neurovascular structure traversing the lateral wall of this fossa. Which structure is at greatest risk of iatrogenic injury?
- A)Greater sciatic foramen
- B)Femoral canal
- C)Pudendal canalGABARITO
- D)Obturator canal
- E)Lesser sciatic foramen
Explicação
The pudendal canal, also called Alcock canal, is embedded in the obturator fascia along the lateral wall of the ischioanal fossa. It contains the pudendal nerve and internal pudendal vessels and is clinically important during drainage of deep perineal infectio... Ver explicação completa e trilha adaptativa →