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Vascular Surgery2 papers

Thrombosed hemorrhoids

Last edited: 4/16/2026

Overview

Thrombosed hemorrhoids occur when blood clots form within the hemorrhoidal veins, leading to acute pain, swelling, and sometimes ulceration in the perianal region. 1

Diagnosis

  • Clinical Presentation: Painful perianal mass, often with visible thrombosis.
  • Imaging: MRI and CT can help differentiate from other inguinal masses, showing serpentine mass lesions with blood elements 1.
  • Differential Diagnosis: Important to distinguish from other causes of inguinal masses to avoid unnecessary surgery.
  • Management

  • Conservative Management: Pain control with analgesics (e.g., NSAIDs), sitz baths, and stool softeners.
  • Surgical Intervention: Considered for severe cases with significant pain or complications; options include incision and drainage or hemorrhoidectomy 1.
  • Monitoring: Regular follow-up to assess resolution and prevent complications.
  • Special Populations

  • Pregnancy: Thrombosis can occur post-delivery; imaging may be necessary for accurate diagnosis 1.
  • Comorbidities: No specific guidance provided in the abstracts; management should consider overall patient health status.
  • Key Recommendations

  • Differentiate Thrombosed Hemorrhoids from Other Inguinal Masses Using imaging studies to avoid unnecessary surgical interventions (Evidence: Expert opinion 1).
  • Initiate Conservative Treatment Including pain management and conservative measures before considering surgical options (Evidence: Expert opinion 1).
  • Monitor Post-Delivery Cases Closely in pregnant women for timely diagnosis and management of thrombosed hemorrhoids (Evidence: Expert opinion 1).
  • References

    1 Tokue H, Aoki J, Tsushima Y, Endo K. Characteristic of computed tomography and magnetic resonance imaging finding of thrombosed varices of the round ligament of the uterus: a case report. Journal of computer assisted tomography 2008. link

    Original source

    1. [1]

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