Cavitary pulmonary nodule caused by Haemophilus influenzae in a renal transplant recipient.

Primary Haemophilus influenzae lung abscess has not previously been reported in renal transplant recipients. Our patient had a single cavitary pulmonary nodule and a subacute clinical course. This case demonstrates that infections in immunosuppressed patients may behave in uncharacteristic fashion, and exhaustive attempts must be made to secure the diagnosis so that proper therapy can be instituted.