Peripheral T-cell lymphoma: a clinicopathologic study of nine cases

Area of Science:

• Hematology
• Oncology
• Pathology

Background:

• Peripheral T-cell lymphoma (PTCL) encompasses a heterogeneous group of lymphoid malignancies.
• Understanding the clinicopathologic spectrum of PTCL is crucial for accurate diagnosis and treatment.

Purpose of the Study:

• To analyze the clinicopathologic features of nine PTCL cases.
• To identify characteristic histopathologic features of PTCL.
• To explore potential correlations between morphology, clinical presentation, and patient outcomes.

Main Methods:

• Retrospective analysis of nine PTCL cases.
• Detailed histopathologic examination of tumor samples.
• Review of clinical data, including patient demographics, disease stage, treatment, and survival.

Main Results:

• Median patient age was 59.8 years, with a range from 18 years.
• Most cases presented with widespread disease and aggressive clinical courses, with a median survival of 10.9 months for seven deceased patients.
• Histopathologic findings included mixed cell type (five cases), large cell type (three cases), and small cell type (one case).
• Notable outcomes included one patient with small cell PTCL (PDL) remaining symptom-free for over 3 years without treatment, and another with nodular sclerosis-like fibrosis achieving complete remission after chemotherapy.

Conclusions:

• Peripheral T-cell lymphoma exhibits significant morphologic and clinical heterogeneity.
• A modified Rappaport classification system may aid in clarifying variations in PTCL biologic behavior.
• Further research into standardized classification is warranted to improve patient management and outcomes.