Preliminary Diagnosis: Prostatitis
I. What imaging technique is first-line for this diagnosis?
Ultrasound of the prostate gland. Transrectal offers better imaging.
II. Describe the advantages and disadvantages of this technique for diagnosis prostatitis.
Advantages
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Highly portable imaging modality.
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Does not expose patients to ionizing radiation.
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Exquisitely details the vascularity of the prostate gland.
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May help guide percutaneous biopsy.
Disadvantages
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Limited in sensitivity and specificity in detailing the prostate anatomy and surrounding soft tissues.
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Prostatitis is more of a clinical diagnosis.
III. What are the contraindications for the first-line imaging technique?
No specific contraindications to ultrasound exist.
IV. What alternative imaging techniques are available?
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CT imaging of the pelvis with contrast.
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MR imaging of the pelvis with contrast.
V. Describe the advantages and disadvantages of the alternative techniques for diagnosing prostatitis.
CT imaging of the pelvis with contrast
Advantages
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Highly details the surrounding soft tissues, vasculature, and osseous structures with great sensitivity and specificity.
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Better evaluates for any secondary complications, i.e., abscess and hemorrhage, than other imaging modalities.
Disadvantages
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Limited in detecting subtle inflammatory change seen in subtle prostatitis.
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Exposes patients to ionizing radiation.
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Prostatitis is more of a clinical diagnosis.
MR imaging of the pelvis with contrast
Advantages
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Offers exquisite detail of the surrounding soft tissues and is able to detail subtle edema of the prostate gland noted in prostatitis.
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Gold standard in detailing and characterizing the anatomy of the prostate gland and detecting any underlying inflammatory change.
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Highly sensitive and specific in evaluating the primary pathology and evaluating and characterizing any secondary complications.
Disadvantages
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May be subject to motion and susceptibility weighted artifact, degrading image quality.
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Less exquisite in detailing the surrounding osseous structures.
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Expensive.
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Time consuming.
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Prostatitis is more of clinical diagnosis.
VI. What are the contraindications for the alternative imaging techniques?
CT imaging of the pelvis with contrast
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May be contraindicated in pregnant patients.
MR imaging of the pelvis with contrast
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May be contraindicated in patients with non-MR compatible hardware.
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