Enteropathy associated T-cell lymphoma (EATL) is

Summary. This study evaluated the incidence and outcome of Hodgkin's disease (HD) in older patients using a population-based approach. In total, 102 patients (52 men, 50 women) aged ‡ 60 years presented in the Northern Health Region of England (population of 3AE09 million) between 1 January 1991 and 31 December 1998 and were studied prospectively. The age-specific incidence was 1AE97/ 100 000 for those aged 60-69 years, and 2AE18/100 000 for those aged 70 years or over. The median age of the cohort was 70 years (range 60-91) and the median follow up was 63 months (range 20-113). Out of 95 treated patients, 70 (74%) obtained complete or good partial (> 90% response) remissions. In the 60 to 69-year-old group, the disease-specific survival at 5 years was 100% for those presenting with early stage disease and 52% for those with advanced stage disease. In patients aged >70 years the 5 year disease-specific survival was 36% in patients with early stage and 14% for patients with advanced stage disease. The survival of patients with Epstein-Barr virus (EBV)-positive tumours was significantly poorer than that of patients with EBV-negative tumours (P ¼ 0AE007); median survival in the former group was 20 months versus undefined in the latter group. In total, 43 deaths were due to progressive HD and five were treatment-related. This study defined the incidence of HD in our population and demonstrated that the prognosis of elderly patients, particularly those with advanced stage disease, has not improved concurrently with that of patients aged < 60 years old. Novel approaches to assessment and treatment are necessary.

Determining the underlying cause of persistent eosinophilia is important for effective clinical management but remains a diagnostic challenge in many cases. We identified STAT5B N642H, an established oncogenic mutation, in 27/1715 (1.6%) cases referred for investigation of eosinophilia. Of the 27 mutated cases, a working diagnosis of hypereosinophilic syndrome (HES; n = 7) or a myeloid neoplasm with eosinophilia (n = 20) had been made prior to the detection of STAT5B N642H. Myeloid panel analysis identified a median of 2 additional mutated genes (range 0–4) with 4 cases having STAT5B N642H as a sole abnormality. STAT5B N642H was absent in cultured T cells of 4/4 positive cases. Individuals with SF3B1 mutations (9/27; 33%) or STAT5B N642H as a sole abnormality had a markedly better overall survival compared to cases with other additional mutations (median 65 months vs. 14 months; hazard ratio = 8.1; P < 0.001). The overall survival of STAT5B-mutated HES cases was only 30 months, suggesting that these cases should be reclassified as chronic eosinophilic leukemia, not otherwise specified (CEL-NOS). The finding of STAT5B N642H as a recurrent mutation in myeloid neoplasia with eosinophilia provides a new diagnostic and prognostic marker as well as a potential target for therapy.

These results indicate that in a population screened for colorectal neoplasia by FOB testing, anticoagulant medication being taken at the time of testing is associated with an increased likelihood of a negative colonoscopy.