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Assessment of the frequency of additional cancers in patients with splenic marginal zone lymphoma

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Iannitto E, Minardi V, Callea V, Stelitano C, Calvaruso G, Tripodo C, Quintini G, De Cantis S, Ambrosetti A, Pizzolo G, Franco V, Florena AM, Abbadessa V. Assessment of the frequency of additional cancers in patients with splenic marginal zone lymphoma.
Eur J Haematol 2005. © Blackwell Munksgaard 2005. Abstract: 

Objectives: Solid second primary cancers (SPC) have become an issue of extensive research. The purpose of the present study was to estimate the standardised incidence ratio (SIR) and the absolute excess risk (AER) of SPC in patients with splenic marginal zone lymphoma (SMZL).Methods: We investigated the incidence of additional cancers in 129 patients consecutively diagnosed with SMZL in three Italian haematological centres, asking the cooperating doctors for additional information on initial and subsequent therapies and on the onset and type of second cancers.Results: Twelve SPC were recorded (9.3%); the 3- and 5-yr cumulative incidence rates were 5.5% and 18.3% respectively, with an SIR of 2.03 [95% confidence interval (CI): 1.05–3.56; P < 0.05; AER = 145.81]. Of 12 SPC observed, four were urinary tract neoplasms (SIR, 3.70; 95% CI: 1.01–9.48; P < 0.05; AER = 70.06), four were lung cancers (SIR, 9.16; 95% CI: 1.41–13.25; P < 0.05; AER = 85.50) and the other four were hepatic carcinoma, endometrial cancer, breast cancer and colorectal cancer. Conclusions: Our findings evidence a high frequency of additional cancers in patients with SMZL and suggest that the incidence rate of SPC is significantly different from that expected in the general population. The frequency of cases with urinary tract and lung malignancies in our series is higher than expected. Although confirmatory data are needed, it is our opinion that SMZL patients are at risk of second cancer and should be carefully investigated on diagnosis and monitored during the follow-up.
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Keywords: additional neoplasm; lung cancer; non-Hodgkin's lymphoma; second cancer; splenic lymphoma with villous lymphocytes; splenic marginal zone lymphoma

Document Type: Research Article

Affiliations: 1: Hematology and BMT Unit, Department of Oncology, University of Palermo, Palermo 2: Hematology and BMT Unit, Melacrino-Morelli Hospital, Reggio Calabria 3: Surgical Pathology 4: Quantitative Methods for Human Sciences, University of Palermo, Palermo 5: Hematology and BMT Unit, Department of Experimental and Clinical Medicine, University of Verona, Verona, Italy

Publication date: February 1, 2006

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