title: Anaplastic lymphoma kinase-positive large B-cell lymphoma: a potential diagnostic pitfall.
abstract: Anaplastic lymphoma kinase-positive large B-cell lymphoma (ALK + LBCL) is a rare variant of LBCL with an abnormal immunophenotype, which is easily misdiagnosed as carcinoma or plasma cell neoplasm. Here, we present two cases of ALK + LBCL in the lymph node; describe their clinical, pathological, and immunophenotype features; and compare them with those of the reported cases.
authors.forename: Hong
authors.initials: H
authors.lastname: Yu
authors.forename: Junxing
authors.initials: J
authors.lastname: Huang
authors.forename: Juanjuan
authors.initials: J
authors.lastname: Sun
authors.affiliation: Department of Pathology, Cancer Hospital of Fudan University, Shanghai 200032, China.
authors.forename: Chaofu
authors.initials: C
authors.lastname: Wang
authors.forename: Mei
authors.initials: M
authors.lastname: Lin
authors.forename: Hui
authors.initials: H
authors.lastname: Li
mesh_terms: D000328:Adult; D000077548:Anaplastic Lymphoma Kinase; D006651:Histocytochemistry; D006801:Humans; D007150:Immunohistochemistry; D016130:Immunophenotyping; D016403:Lymphoma, Large B-Cell, Diffuse / Q000175:diagnosis* / Q000473:pathology*; D008297:Male; D008853:Microscopy; D020794:Receptor Protein-Tyrosine Kinases / Q000032:analysis*
chemical_list: C000626173:ALK protein, human; D000077548:Anaplastic Lymphoma Kinase; D020794:Receptor Protein-Tyrosine Kinases