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Zorluk: OrtaInterpreting Imaging Results

A 42-year-old male presents to the urgent care clinic complaining of sudden-onset, sharp left lower quadrant abdominal pain that began 12 hours ago. He denies nausea, vomiting, fevers, chills, or changes in bowel habits. His medical history is unremarkable, and he takes no medications. Vital signs show a temperature of 37.1°C (98.8°F), blood pressure of 124/80 mm Hg, heart rate of 78/min, and respiratory rate of 14/min. Physical examination reveals a non-distended abdomen with focal tenderness to deep palpation in the left lower quadrant. There is no guarding or rebound tenderness. Laboratory studies reveal a leukocyte count of 7,500/mm³ and a completely normal comprehensive metabolic panel. A contrast-enhanced computed tomography scan of the abdomen and pelvis reveals a 2.5-cm, oval-shaped, fat-attenuating lesion with a hyperdense peripheral rim abutting the anterior wall of the descending colon. Mild inflammatory stranding is seen surrounding the lesion. The appendix and colonic wall appear normal, and there is no evidence of diverticulosis. Based on the interpretation of these imaging findings, which of the following is the most appropriate next step in management?

  1. Discharge home with a prescription for oral nonsteroidal anti-inflammatory drugsCevap
  2. B
    Hospital admission and initiation of intravenous piperacillin-tazobactam
  3. C
    Surgical consultation for an urgent diagnostic laparoscopy
  4. D
    Magnetic resonance imaging of the abdomen with gadolinium enhancement
  5. E
    Urgent scheduling of a colonoscopy to evaluate for occult malignancy

Cevap

Discharge home with a prescription for oral nonsteroidal anti-inflammatory drugs
The correct answer correctly aligns the pathognomonic radiologic findings with the standard of care. The computed tomography findings of an oval, fat-attenuating structure with a hyperdense ring abutting a normal colon are diagnostic of epiploic appendagitis. This condition results from the torsion or spontaneous venous thrombosis of one of the colonic epiploic appendages. Because the condition is self-limiting and rarely results in significant complications, it is managed conservatively with outpatient oral analgesics, primarily nonsteroidal anti-inflammatory drugs.

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1
Analyze the patient's clinical presentation.
The patient has acute, localized left lower quadrant abdominal pain without systemic signs of infection (normal temperature, normal leukocyte count) or peritonitis.
Establishing the acuity and severity of the abdominal pain rules out immediate life-threatening conditions and guides the interpretation of the imaging.
2
Interpret the specific radiologic findings provided in the vignette.
The computed tomography reveals a fat-attenuating oval lesion with a hyperdense rim (the 'hyperattenuating ring sign') adjacent to the normal-appearing colon.
This precise imaging description differentiates epiploic appendagitis from other causes of acute abdominal pain, such as acute diverticulitis (which would show colonic wall thickening and diverticula).
3
Determine the appropriate clinical management based on the definitive diagnosis.
Epiploic appendagitis is an ischemic infarction of an epiploic appendage. It is a self-limiting condition that resolves within a few weeks.
Because it is benign and self-limiting, the standard of care is symptomatic pain control with nonsteroidal anti-inflammatory drugs on an outpatient basis.

Anahtar Kavram

Epiploic appendagitis is diagnosed via computed tomography demonstrating a fat-attenuating oval lesion with a hyperdense rim adjacent to the colon. Management consists of supportive care with oral analgesics.
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Interpreting Imaging Results

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