• Roentgenographic examination of the chest in three patients revealed the existence of well-defined nodular lesions in the midpulmonary or mediastinal areas. Thoracotomy in each case led to the removal of circumscribed granulomas that were negative for tuberculosis but yielded Brucella suis when cultured. In one instance the patient's complaint of hoarseness was explained by the finding of a diseased tracheobronchial lymph node adherent to the recurrent laryngeal nerves.
Bacteriological examination of the sputum or bronchial washings, skin tests, and agglutination tests gave little information of positive value, and blood cultures were negative. Recovery followed the surgical excision of the lesions.