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These are actual cases to Stimulate your reading Test your knowledge of the material Look for the sound icon (usually in the top right portion of the slide). 18 year old male Malaise and purulent nasal discharge Increasing dyspnea and hemoptysis History otherwise unremarkable. - PowerPoint PPT Presentation
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• These are actual cases to– Stimulate your reading– Test your knowledge of the material
• Look for the sound icon (usually in the top right portion of the slide)
• 18 year old male• Malaise and purulent nasal
discharge• Increasing dyspnea and
hemoptysis• History otherwise
unremarkable
• Physical exam: vitals signs stable, bibasilar crackles, especially at left base
• Initial Labwork:– Hgb 100– BUN 17– Cr 170– Urinalysis: 3+ red cells
• Q1: Interpret the CXR.• Answer (Q1)
• Q2: How does the CXR help you distinguish amongst the potential causes of hemoptysis?
• Answer (Q2)
• Q3: Based on the clinical, radiologic, and laboratory information presented so far, what are the diagnostic possibilities and your most likely diagnosis?
• Answer (Q3)
• Patient is admitted to hospital• Bronchoscopy - alveolar
hemorrhage without an airway lesion
• cANCA positive (1 / 2560 titer), pANCA and anti-GBM negative
• urine for cytodiagnostics – RBC casts
• Q4: What should you do next and why?a) CT chest to look for areas of
microcavitationb) Repeat bronchoscopy with
transbronchial lung biopsyc) Open lung biopsyd) Renal biopsye) Start empiric treatment with
steroidsf) Follow
• Answer (Q4)
• Renal biopsy - pauci-immune crescentic, necrotizing glomerulonephritis