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The prognosis and optimal therapy for high-risk early-stage extranodal nasal-type natural killer/T-cell lymphoma (NKTCL) are not well defined. This study was conducted to evaluate the prognostic factors and treatment outcomes in patients with stage II NKTCL of the upper aerodigestive tract (UADT-NKTCL). One hundred and twenty-four patients with stage II UADT-NKTCL were enrolled. Primary tumors were located in the nasal cavity ( n = 53) or extranasal UADT ( n = 71). Eighty-four patients were treated with combined modality therapy (CMT), and 40 patients were treated with radiotherapy alone ( n = 30) or chemotherapy alone ( n = 10). The 5-year overall survival (OS) and progression-free survival (PFS) rates for all stage II patients were 60.1% and 47.8%, respectively. Primary location and disease extent were the important prognostic factors in univariate and multivariate analyses. CMT significantly improved survival. The 5-year OS and PFS rates were 71.2% and 56.7% for CMT, compared with 35.1% ( p < 0.001) and 26.7% for single modality therapy ( p < 0.001). Survival differences between CMT and single modality therapy were also observed in nasal and extranasal subgroups of UADT-NKTCL. This retrospective study showed significant improvements in OS and PFS in patients who received both chemotherapy and radiotherapy for stage II NKTCL. The findings need further validation in other datasets. [ABSTRACT FROM AUTHOR]

The aim of this study was to evaluate the prognostic importance of rituximab and radiotherapy in patients with primary mediastinal large B-cell lymphoma (PMBCL) receiving doxorubicin-containing chemotherapy. Seventy-nine patients with PMBCL received CHOP chemotherapy with ( n = 39) or without rituximab ( n = 40), and 60 patients received additional radiotherapy. Patients treated with rituximab, cyclophosphamide, doxorubicin, vincristine and prednisone (R-CHOP) had significantly superior survival rates. The 5-year overall survival (OS) and progression-free survival (PFS) rates were 83.7% and 76.7% for R-CHOP, compared with 48.3% ( p = 0.011) and 44.2% ( p = 0.012) for CHOP, respectively. Similarly, the 5-year OS and PFS rates for early stage patients were 93.8% and 84.6% with R-CHOP, and 52.0% ( p = 0.002) and 46.6% ( p = 0.003) with CHOP, respectively. Patients treated with chemotherapy and radiotherapy had better survival and local control (LC) rates compared with chemotherapy alone. The 5-year OS, PFS and LC rates for early stage patients were 73.6%, 69.9% and 92.6% for chemotherapy and radiotherapy, and 50.8% ( p = 0.076), 36.9% ( p = 0.008) and 56.4% ( p < 0.001) for chemotherapy alone, respectively. Early stage patients treated with R-CHOP and radiotherapy had 5-year OS, PFS and LC rates of 96.4%, 85.9% and 93.1%. R-CHOP plus consolidation radiotherapy was associated with excellent survival and LC rates. [ABSTRACT FROM AUTHOR]

The aim of this study was to analyze outcomes in adult patients with early stage systemic anaplastic large-cell lymphoma (ALCL) treated with doxorubicin-based chemotherapy and radiotherapy. Forty-six adult patients with early stage systemic ALCL received chemotherapy followed by radiotherapy. All patients except two received chemotherapy with cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) or a CHOP-like regimen. Twenty patients had stage I disease, and 26 patients had stage II disease. The 5-yr overall survival (OS), progression-free survival (PFS), and local control rates for all patients were 84.4%, 63.6%, and 90.8%, respectively. The 5-yr OS and PFS rates were 95.0% and 77.4% for Ann Arbor stage I disease, and 75.1% and 51.7% for stage II disease, respectively. Lymph node involvement was the main pattern of disease progression or relapse for these patients. Adult patients with early stage systemic ALCL treated with doxorubicin-based chemotherapy and radiotherapy had a favorable prognosis. [ABSTRACT FROM AUTHOR]

This study aimed to determine whether the phenotypic characteristics of the two subtypes of CD56++ and CD56−− lymphoma have relevance for their clinical behavior and prognosis. The immunophenotypes of all patients were confirmed using standard criteria for CD20, CD3ℇε, CD56, cytotoxic molecules (T-cell intracellular antigen-1 [[TIA-1]] and granzyme B), and Ki-67, and in situ hybridization for Epstein--Barr virus (EBV)-encoded RNA (EBER). CD56 was expressed in 90 of 118 (76.3%%) patients. The majority (83.3%%) of patients with nasal natural killer/T-cell lymphoma (NKTCL) presented with CD56++ lymphoma, whereas patients with NKTCL of the extranasal upper aerodigestive tract were more likely to have CD56−− lymphoma (53.6%%, p < 0.000). A lower percentage of expression of granzyme B and Ki-67 (>50%%) was found in patients with CD56−− lymphoma compared with those with CD56++ lymphoma ( p < 0.05). The clinical characteristics and prognosis were comparable between patients with CD56++ and CD56−− lymphomas. The corresponding overall survival and progression-free survival rates were 74.1%% and 56.7%%, respectively, for patients with CD56++ lymphoma compared with 81.6%% and 60.5%% for those with CD56−− lymphoma ( p > 0.05). There was no clinical or prognostic significance in determining the two subtypes of CD56++ and CD56−− NKTCL based on their immunophenotypic profiles, which has clinical implications for pathological diagnosis and insight into disease behavior. [ABSTRACT FROM AUTHOR]