A total of 51 PTCL patients who underwent pre-treatment 18F-FDG PET/CT from March 2013 to May 2019 were enrolled in the present study. Inclusion criteria were set as follows: (1) histopathologically confirmed as PTCL (PTCL-NOS, AITL, or ALCL ALK-) and (2) availability of digital image data for analysis. ALCL ALK+ patients who had superior outcome after CHOP or CHOP-like regimens were excluded.
Characteristics of patients included age, gender, B symptoms, LDH (lactate dehydrogenase) level, IPI score, NCCN-IPI score, prognostic index for T-cell lymphoma (PIT) score, Eastern Cooperative Oncology Group (ECOG) performance status, Ann Arbor stage, bone marrow biopsy, and PET/CT data.
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