Fig. 2From: Thyroid abscess associated with thyrotoxicosis caused by Yersinia enterocolitica subsp. palearctica in a patient with follicular adenoma of the thyroid glanda Drainage fluid culture test detecting Gram-negative rod bacteria (Gram stain, magnification 1000 ×). b A blood culture test detecting Gram-negative rod bacteria (Gram stain, magnification 1000 ×)Back to article page