(C) Diminished breath sounds; also (B) Bronchial breath sounds and (D) Egophony. The diagnosis in the fifth case is left pleural effusion. The most common auscultatory finding in cases of left pleural effusion is diminished breath sounds over the left lower hemithorax. Bronchial breath sounds and egophony may also be heard just above the pleural effusion. The absence of egophony excludes consolidation.

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