title: Primary anaplastic lymphoma kinase-negative anaplastic   large-cell lymphoma of the breast in a male patient.
abstract: Anaplastic large-cell lymphoma is an extremely rare lymphoma subtype. We describe the mammographic and ultrasonographic findings in a 51-year-old male patient who suffered from a palpable lump caused by this rare disease.
authors.affiliation: Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea. mathilda0330@gmail.com
authors.forename: E S
authors.initials: ES
authors.lastname: Ko
authors.forename: H
authors.initials: H
authors.lastname: Seol
authors.forename: J H
authors.initials: JH
authors.lastname: Shin
authors.forename: E Y
authors.initials: EY
authors.lastname: Ko
mesh_terms: D000077548:Anaplastic Lymphoma Kinase; D018567:Breast Neoplasms, Male / Q000000981:diagnostic imaging* / Q000201:enzymology / Q000473:pathology; D006801:Humans; D017728:Lymphoma, Large-Cell, Anaplastic / Q000000981:diagnostic imaging* / Q000201:enzymology / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011859:Radiography; D020794:Receptor Protein-Tyrosine Kinases / Q000032:analysis; D014463:Ultrasonography
chemical_list: C000626173:ALK protein, human; D000077548:Anaplastic Lymphoma Kinase; D020794:Receptor Protein-Tyrosine Kinases