Fig. 3From: ALK-positive anaplastic large cell lymphoma undiagnosed in a patient with tuberculosis: a case report and review of the literatureReview of the second lymph node biopsy revealed: a Typical fibrocaseous granulomas in black rectangular box and lymphoma area in red oval at low magnification (hematoxylin and eosin stain, ×4); b large lymphoma cells at high magnification (hematoxylin and eosin stain, ×1000); c CD30+ lymphoma cells (immunostained for CD30, ×40); and, d ALK+ lymphoma cells (immunostained for ALK protein, 20×)Back to article page