Volume 57, Issue 1 pp. 161-170
Original Article
Free to Read

Characterization of B cell lymphoma in patients with Sjögren's syndrome and hepatitis C virus infection

Manuel Ramos-Casals

Corresponding Author

Manuel Ramos-Casals

Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, School of Medicine, University of Barcelona, Barcelona, Spain

Servei de Malalties Autoimmunes, Hospital Clínic, C/Villarroel, 170, 08036 Barcelona, SpainSearch for more papers by this author
Luca la Civita

Luca la Civita

S. Martino Hospital, Oristano, Italy

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Salvatore de Vita

Salvatore de Vita

University of Udine, Udine, Italy

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Roser Solans

Roser Solans

Hospital Vall d'Hebron, Barcelona, Spain

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Mario Luppi

Mario Luppi

University of Modena, Modena, Italy

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Francisco Medina

Francisco Medina

Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, School of Medicine, University of Barcelona, Barcelona, Spain

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Paola Caramaschi

Paola Caramaschi

Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, School of Medicine, University of Barcelona, Barcelona, Spain

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Patrizia Fadda

Patrizia Fadda

S. Martino Hospital, Oristano, Italy

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Ginevra de Marchi

Ginevra de Marchi

University of Udine, Udine, Italy

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Armando Lopez-Guillermo

Armando Lopez-Guillermo

Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, School of Medicine, University of Barcelona, Barcelona, Spain

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Josep Font

Josep Font

Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, School of Medicine, University of Barcelona, Barcelona, Spain

S. Martino Hospital, Oristano, Italy

University of Udine, Udine, Italy

Hospital Vall d'Hebron, Barcelona, Spain

University of Modena, Modena, Italy

Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Mexico DF, Mexico

University of Verona, Verona, Italy

Dr. Font is deceased.

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First published: 31 January 2007
Citations: 59

Abstract

Objective

To characterize the clinical and immunologic patterns of expression, response to therapy, and outcome of patients with Sjögren's syndrome (SS) and associated hepatitis C virus (HCV) infection who developed B cell lymphoma.

Methods

Various international reference centers constituted a multicenter study group with the purpose of creating a registry of patients with SS-HCV who developed B cell lymphoma. A protocol form was used to record the main characteristics of SS, chronic HCV infection, and B cell lymphoma.

Results

Twenty-five patients with SS-HCV with B cell lymphoma were included in the registry. There were 22 (88%) women and 3 (12%) men (mean age 55, 58, and 61 years at SS, HCV infection, and lymphoma diagnosis, respectively). The main extraglandular SS manifestations were cutaneous vasculitis in 15 (60%) patients and peripheral neuropathy in 12 (48%); the main immunologic features were positive rheumatoid factor (RF) in 24 (96%) and type II cryoglobulins in 20 (80%). The main histologic subtypes were mucosa-associated lymphoid tissue (MALT) lymphoma in 11 (44%) patients, diffuse large B cell lymphoma in 6 (24%), and follicular center cell lymphoma in 6 (24%). Fifteen (60%) patients had an extranodal primary location, most frequently in the parotid gland (5 patients), liver (4 patients), and stomach (4 patients). Twelve (52%) of 23 patients died after a median followup from the time of lymphoma diagnosis of 4 years, with lymphoma progression being the most frequent cause of death. Survival differed significantly between the main types of B cell lymphoma.

Conclusion

Patients with SS-HCV and B cell lymphoma are clinically characterized by a high frequency of parotid enlargement and vasculitis, an immunologic pattern overwhelmingly dominated by the presence of RF and mixed type II cryoglobulins, a predominance of MALT lymphomas, and an elevated frequency of primary extranodal involvement in organs in which HCV replicates (exocrine glands, liver, and stomach).

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