title: Anaplastic large cell lymphoma with primary involvement of the skeletal muscle: A case report.
abstract: The present study reported the case of a patient with primary anaplastic large cell lymphoma (ALCL) occurring in the left major psoas. A 24-year-old male patient presented with one-month history of left lower back pain, which had been exacerbated for 10 days prior to admission. Magnetic resonance imaging (MRI) scans revealed an enlarged major psoas muscle that protruded into the inguinal region. The presence of an intense soft tissue mass on MRI scans, as well as the results of fine-needle aspiration biopsy and immunohistochemical analysis of the mass, may help establish an early diagnosis, allowing for the appropriate treatment strategy to be initiated.
authors.affiliation: Department of Orthopedic Center, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China ; Key Orthopedic Biomechanics Laboratory of Hebei, Shijiazhuang, Hebei 050051, P.R. China ; Orthopaedic Research Institution of Hebei, Shijiazhuang, Hebei 050051, P.R. China.
authors.forename: Zongyou
authors.initials: Z
authors.lastname: Yang
authors.affiliation: Department of Orthopedic Center, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China ; Key Orthopedic Biomechanics Laboratory of Hebei, Shijiazhuang, Hebei 050051, P.R. China ; Orthopaedic Research Institution of Hebei, Shijiazhuang, Hebei 050051, P.R. China.
authors.forename: Yueju
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Department of Medical Imaging, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China.
authors.forename: Fuqian
authors.initials: F
authors.lastname: Guo
authors.affiliation: Department of Orthopedic Center, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China ; Key Orthopedic Biomechanics Laboratory of Hebei, Shijiazhuang, Hebei 050051, P.R. China ; Orthopaedic Research Institution of Hebei, Shijiazhuang, Hebei 050051, P.R. China.
authors.forename: Wei
authors.initials: W
authors.lastname: Chen
authors.affiliation: Department of Orthopedic Center, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China.
authors.forename: Yingchao
authors.initials: Y
authors.lastname: Yin
authors.affiliation: Department of Orthopedic Center, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China ; Key Orthopedic Biomechanics Laboratory of Hebei, Shijiazhuang, Hebei 050051, P.R. China ; Orthopaedic Research Institution of Hebei, Shijiazhuang, Hebei 050051, P.R. China.
authors.forename: Zhaoyu
authors.initials: Z
authors.lastname: Chen
authors.affiliation: Department of Orthopedic Center, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China ; Key Orthopedic Biomechanics Laboratory of Hebei, Shijiazhuang, Hebei 050051, P.R. China ; Orthopaedic Research Institution of Hebei, Shijiazhuang, Hebei 050051, P.R. China.
authors.forename: Han
authors.initials: H
authors.lastname: Li
authors.affiliation: Department of Orthopedic Center, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China ; Key Orthopedic Biomechanics Laboratory of Hebei, Shijiazhuang, Hebei 050051, P.R. China ; Orthopaedic Research Institution of Hebei, Shijiazhuang, Hebei 050051, P.R. China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Luo
authors.affiliation: Department of Orthopedic Center, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China ; Key Orthopedic Biomechanics Laboratory of Hebei, Shijiazhuang, Hebei 050051, P.R. China ; Orthopaedic Research Institution of Hebei, Shijiazhuang, Hebei 050051, P.R. China.
authors.forename: Yingze
authors.initials: Y
authors.lastname: Zhang
keywords: anaplastic large cell lymphoma; diagnosis; skeletal muscle