Fig. 2From: Hepatic methotrexate-associated lymphoproliferative disorders identified by multiple liver tumors: a case report and review of the literaturePathological results obtained from endoscopic ultrasound-guided fine-needle aspiration biopsy for liver tumors indicated B cell lymphoma. a Hematoxylin and eosin stain × 200. b Cluster of differentiation 20 immunostain × 200Back to article page