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Future studies in this area are anticipated and will hopefully determine whether rare CD34 SP + sp stem cell clones with lymphoma mutations exists in patients with lymphoma, and whether they have an impact on clinical course and treatment response. Patients were included if they had a diagnosis of lymphoma, were intended to undergo ASCT, had a sufficient stem cell harvest and had at least one additional vial of their stem cell product available for research purposes. However, another possibility is that the methods used in this report (detection limit of VAF >2%, hence able to identify mutations in four out of a 100 CD34 SP + sp cells) are not sensitive enough to detect possible B-cell lymphoma CD34 SP + sp stem cells. [Extracted from the article]

High-dose prednisolone is used in first-line treatment for lymphoma, but the potential adverse impact on bone health is unclear. Danish patients with diffuse large B-cell lymphoma or follicular lymphoma diagnosed between 2000 and 2012 were matched to the background population. Osteoporotic events (osteoporosis treatment or low-energy fracture) were identified using the Danish National Patient Registry and Prescription Registry. In total, 2589 patients and 12,945 controls were included. Lymphoma patients had increased risk of osteoporotic events compared to the matched population (hazard ratio 1.61 [95% confidence interval 1.40;1.84]). The 5- and 10-year cumulative risks of osteoporotic events for lymphoma patients were 10.0% [8.6;11.4] and 16.3% [13.8;18.7], whereas corresponding risks in the background population were 6.8% [6.3;7.3] and 13.5% [12.4;14.6]. Patients without osteoporotic event in the first two years after treatment were not at higher risk of osteoporotic events in subsequent years. Risk factors for osteoporotic events were female sex and age >70 years. [ABSTRACT FROM AUTHOR]

18F-Fluorodeoxyglucose positron emission tomography/ computed tomography (PET/CT) is a highly accurate staging method in classical Hodgkin lymphoma (cHL). We retrospectively compared the staging results obtained in two large cohorts of patients with cHL diagnosed before ( n = 324) and after ( n = 406) the introduction of PET/CT staging in a retrospective study. In PET/CT staged patients, stage I disease was less frequent (16% vs. 27%, p < 0.001) while stage IV disease was more frequent (17% vs. 10%, p = 0.02). Imaging-detected skeletal involvement was recognized more often in PET/CT staged patients (17% vs. 2%, p < 0.001), and the presence of focal skeletal PET/CT lesions was associated with higher risk of progression (hazard ratio [HR] 1.96, 95% confidence interval [CI]: 1.14-3.36). The German Hodgkin Study Group (GHSG) risk classification (early, intermediate, advanced disease) predicted outcome in PET/CT staged patients. In conclusion, PET/CT led to higher disease stages, and the more frequently diagnosed skeletal lesions may be an adverse prognostic factor. [ABSTRACT FROM AUTHOR]