CTICasesSarcoidosis Presenting as Nodular Consolidation Mimicking Pneumonia
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Imaging findings
Initial chest X-ray showed presumed pneumonia. One month later, follow-up X-ray showed worsening abnormalities. CT scan revealed large areas of nodular consolidation with air bronchograms and a CT angiogram sign, accompanied by mediastinal and hilar lymph node enlargement. Biopsies confirmed sarcoidosis.
Key takeaways
Sarcoidosis can present with varied pulmonary manifestations, including nodular consolidation and lymphadenopathy, which may initially mimic pneumonia or malignancy, especially in emergency settings with acute symptoms. Rapid progression of granulomatous inflammation can lead to dramatic radiographic changes in a short period. Tissue biopsy is often necessary for definitive diagnosis.
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