Utility of fascin and JunB in distinguishing nodular lymphocyte predominant from classical lymphocyte-rich Hodgkin lymphoma

Loss of TCR-beta F1 and/or EZRIN expression is associated with unfavorable prognosis in nodal peripheral T-cell lymphomas

Nodal peripheral T-cell lymphoma (nodal PTCL) has an unfavorable prognosis, and specific pathogenic alterations have not been fully identified. The biological and clinical relevance of the expression of CD30/T-cell receptor (TCR) genes is a topic under active investigation. One-hundred and ninety-three consecutive nodal PTCLs (89 angioimmunoblastic T-cell lymphomas (AITL) and 104 PTCL-unspecified (PTCL-not otherwise specified (NOS)) cases) were analyzed for the immunohistochemical expression of 19 molecules, involving TCR/CD30 pathways and the associations with standard prognostic indices. Mutually exclusive expression was found between CD3 and TCR-beta F1 with CD30 expression. Taking all PTCL cases together, logistic regression identified a biological score (BS) including TCR molecules (TCR-beta F1 and EZRIN) that separates two subgroups of patients with a median survival of 34.57 and 5.20 months (P<0.001). Multivariate analysis identified BS and the prognostic index for PTCL (PIT) score as independent prognostic factors. This BS maintained its significance in multivariate analysis only for the PTCL-NOS subgroup of tumors. In AITL cases, only a high level of ki67 expression was related to prognosis. A BS including molecules involved in the TCR signaling pathway proved to be an independent prognostic factor of poor outcome in a multivariate analysis, specifically in PTCL-NOS patients. Nevertheless, validation in an independent series of homogeneously treated PTCL patients is required to confirm these data.

[Hodgkin's lymphoma in otorhinolaryngology]

OBJECTIVES

To evaluate the implication of Hodgkin's lymphoma (HL) in Otorhinolaryngology.

PATIENTS AND METHODS

A longitudinal retrospective study on patients with HL diagnosed, treated and followed-up in our Centre from 1996 to 2010.

RESULTS

From 413 individuals having lymphoma, 120 were labelled as HL (29%). Patients were males in 76% and greater incidence was observed in ages between 15 and 30 years old, as well as between 45 and 60. Samples for biopsy from adenopathies were obtained in 84 cases (61 from the neck), and in 15 its origin was extranodal. The most usual finding at physical exploration was the presence of cervical (86%) and axillary nodes (68%), followed by B symptoms (37%). Waldeyer's ring was affected in 4%. The most frequent histopathological variety was classic HL with nodular sclerosis (50%) and mixed cellularity (28%). Patients were usually diagnosed at stages I (28%) and II (47%). Recurrence of disease in the neck after conventional oncologic therapies was detected in 17 patients, in 7 of which the pathologic study had varied. Mortality was 8%. The main unfavourable prognostic factors for neoplasm recurrence were lymphocyte depletion variety, lymphadenopathy larger than 10 cm and B symptoms.

CONCLUSIONS

Clinical HL findings are strongly associated with the head and neck area, making its suspicion obligatory in differential diagnosis on cervical nodes.