title: 72-Year-Old Man With Fever and Malaise.
authors.affiliation: Resident in Internal Medicine, Mayo School of Graduate Medical Education, Rochester, MN.
authors.forename: Kathryn S
authors.initials: KS
authors.lastname: Handlogten
authors.affiliation: Resident in Internal Medicine, Mayo School of Graduate Medical Education, Rochester, MN.
authors.forename: Bradley W
authors.initials: BW
authors.lastname: Anderson
authors.affiliation: Advisor to residents and Consultant in General Internal Medicine, Mayo Clinic, Rochester, MN. Electronic address: mohabbat.arya@mayo.edu.
authors.forename: Arya B
authors.initials: AB
authors.lastname: Mohabbat
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D005221:Fatigue / Q000175:diagnosis* / Q000209:etiology; D005334:Fever / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D008297:Male; D049268:Positron-Emission Tomography; D013154:Spleen / Q000473:pathology*; D013156:Splenectomy; D014057:Tomography, X-Ray Computed