title: Russell body duodenitis with immunoglobulin kappa light chain restriction.
abstract: Russell bodies are eosinophilic intracytoplasmic globules which are likely the result of disturbed secretion of immunoglobulins that accumulate within the plasma cell. Russell body collections have been identified within the stomach, known as Russell body gastritis. Similar lesions within the duodenum are referred to as Russell body duodenitis, which is rare. Several Russell body gastritis case reports are associated with Helicobacter pylori. However, the etiology of Russell body duodenitis remains unclear. Here we report the first case of Russell body duodenitis with immunoglobulin light chain restriction in a background of peptic duodenitis.
authors.affiliation: William R Munday, Lucy Harn Kapur, Mina Xu, Xuchen Zhang, Department of Pathology, Yale University School of Medicine, New Haven, CT 06516, United States.
authors.forename: William R
authors.initials: WR
authors.lastname: Munday
authors.affiliation: William R Munday, Lucy Harn Kapur, Mina Xu, Xuchen Zhang, Department of Pathology, Yale University School of Medicine, New Haven, CT 06516, United States.
authors.forename: Lucy Harn
authors.initials: LH
authors.lastname: Kapur
authors.affiliation: William R Munday, Lucy Harn Kapur, Mina Xu, Xuchen Zhang, Department of Pathology, Yale University School of Medicine, New Haven, CT 06516, United States.
authors.forename: Mina
authors.initials: M
authors.lastname: Xu
authors.affiliation: William R Munday, Lucy Harn Kapur, Mina Xu, Xuchen Zhang, Department of Pathology, Yale University School of Medicine, New Haven, CT 06516, United States.
authors.forename: Xuchen
authors.initials: X
authors.lastname: Zhang
keywords: Immunoglobulin; Russell bodies; Russell body duodenitis