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Updated: Aug 20, 2026

Posterior Approach for Debridement of the Psoas Abscess
Published on: March 2, 2020
[Tuberculous psoas abscess in a patient with HIV]
Juan Antonio Sánchez-Valle1, José Luis Martínez-Ordaz, Roberto Blanco-Benavides
1Servicio de Gastrocirugía, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, IMSS. juanisv@hotmail.com
Abstract:
Psoas abscess is an uncommon disease with varied etiology. The most common pathogen in primary abscess is Staphylococcus aureus. Crohn's disease is the most common cause of a secondary abscess. Recently, drug abuse and HIV infection have become important risk factors in identification of a patient with psoas abscess. Mycobacterium tuberculosis is considered an extremely rare cause of psoas abscess, but it is reported in HIV patients. Physical presentation is insidious; classical symptoms are pain and fever. Computed tomography (CT) is the most important tool for diagnosis. Preferred treatment is percutaneous drainage guided by CT. Open surgical drainage should be reserved if percutaneous drainage fails, if possible by extraperitoneal approach; in secondary abscess, the transperitoneal approach is preferred to correct the possible disease.
Insights
Psoas abscess, a rare condition, often presents with pain and fever. Diagnosis relies on CT scans, with percutaneous drainage being the preferred treatment for this serious infection.
Area of Science:
- Infectious Diseases
- Radiology
- Gastroenterology
Background:
- Psoas abscess is an uncommon condition with diverse causes.
- Staphylococcus aureus is the most frequent pathogen in primary abscesses.
- Crohn's disease is the leading cause of secondary psoas abscess.
Observation:
- Recent trends highlight drug abuse and HIV infection as significant risk factors.
- Mycobacterium tuberculosis is a rare but reported cause in HIV-positive individuals.
- Clinical presentation is often subtle, characterized by insidious onset of pain and fever.
Findings:
- Computed tomography (CT) is the cornerstone diagnostic modality.
- Percutaneous drainage under CT guidance is the primary treatment strategy.
- Open surgical drainage is reserved for refractory cases or specific abscess types.
Implications:
- Early diagnosis and appropriate management are crucial for patient outcomes.
- Understanding evolving risk factors like HIV and drug abuse is essential for clinical awareness.
- Tailoring surgical approaches (extraperitoneal vs. transperitoneal) based on abscess etiology improves treatment efficacy.
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