Left Lower Quadrant Abdominal Pain

Aka: Left Lower Quadrant Abdominal Pain, LLQ Abdominal Pain, LLQ Pain

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II. Causes: Gastrointestinal

  1. Appendicitis
  2. Intestinal Obstruction
  3. Constipation
  4. Diverticulitis
  5. Infectious Colitis
  6. Inflammatory Bowel Disease

III. Causes: Vascular

  1. Leaking aneurysm
  2. Mesenteric Ischemia

IV. Causes: Genitourinary

  1. See Acute Pelvic Pain Causes
  2. Ovarian Cyst or torsion
  3. Ureteral Calculus (Nephrolithiasis)
  4. Renal pain
  5. Seminal vesiculitis

V. Causes: Miscellaneous

  1. Psoas abscess
  2. Abdominal wall Hematoma

VI. Evaluation

  1. Diverticulitis suspected (e.g. fever, Diverticuli history, RLQ tenderness, Rectal Bleeding)
    1. Empiric treatment for Diverticulitis
    2. Consider CT Abdomen with oral and IV contrast
  2. Non-Diverticular cause suspected
    1. Evaluate for non-gastrointestinal cause as listed above

VII. Imaging: Preferred

  1. Abdominal CT with Oral Contrast

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