Fig. 2From: ALK-positive anaplastic large cell lymphoma undiagnosed in a patient with tuberculosis: a case report and review of the literatureReview of the first lymph node biopsy revealed: a Typical caseating granulomas (arrows) at low magnification (hematoxylin and eosin stain, ×10); b typical epithelioid histiocytes in granulomas at high magnification (hematoxylin and eosin stain, ×1000); c some scattered activated lymphoid cells outside the granuloma proven to be reactive (hematoxylin and eosin stain, ×1000); and, d detection of acid-fast bacillus within the white circle (hematoxylin and eosin stain, ×1000)Back to article page