title: Eosinophilic gastroenteritis associated with eosinophilic cystitis: Computed tomography and magnetic resonance imaging findings.
abstract: Eosinophilic gastroenteritis (EG) is a rare, distinct clinical entity, and EG associated with eosinophilic cystitis (EC) is extremely rare and has not been well documented. Here, we report two cases of EG and coexistent EC along with findings from computed tomography (CT) and magnetic resonance imaging (MRI). An 18-year-old male with a history of hematuria, urgency and occasional urodynia for two weeks and a 34-year-old male with a history of abdominal distention for one week were admitted to our hospital. Abdominal contrast-enhanced CT in both patients revealed wall thickening in different parts of the gastrointestinal tract with inhomogeneous reinforcement, coexistent with local or diffuse bladder wall thickening with progressive enhancement, and also showed that the bladder mucosal lining was nondestructive. Pelvic MRI showed that the local or diffuse thickened bladder wall was iso-intense on T1-weighted images, hypo-intense on T2-weighted images, and slightly restricted on diffusion weighted imaging (DWI) in one case. After therapy, the thickened wall of the gastrointestinal tract and urinary bladder had improved markedly in the two cases. To the best of our knowledge, this is the first report on the radiological imaging of EG and coexistent EC by both CT and MRI and the first with DWI findings.
authors.affiliation: Shu-Gao Han, Ying Chen, Zi-Hua Qian, Li Yang, Ri-Sheng Yu, Xiu-Liang Zhu, Qing-Hai Li, Department of Radiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China.
authors.forename: Shu-Gao
authors.initials: SG
authors.lastname: Han
authors.affiliation: Shu-Gao Han, Ying Chen, Zi-Hua Qian, Li Yang, Ri-Sheng Yu, Xiu-Liang Zhu, Qing-Hai Li, Department of Radiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Shu-Gao Han, Ying Chen, Zi-Hua Qian, Li Yang, Ri-Sheng Yu, Xiu-Liang Zhu, Qing-Hai Li, Department of Radiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China.
authors.forename: Zi-Hua
authors.initials: ZH
authors.lastname: Qian
authors.affiliation: Shu-Gao Han, Ying Chen, Zi-Hua Qian, Li Yang, Ri-Sheng Yu, Xiu-Liang Zhu, Qing-Hai Li, Department of Radiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China.
authors.forename: Li
authors.initials: L
authors.lastname: Yang
authors.affiliation: Shu-Gao Han, Ying Chen, Zi-Hua Qian, Li Yang, Ri-Sheng Yu, Xiu-Liang Zhu, Qing-Hai Li, Department of Radiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China.
authors.forename: Ri-Sheng
authors.initials: RS
authors.lastname: Yu
authors.affiliation: Shu-Gao Han, Ying Chen, Zi-Hua Qian, Li Yang, Ri-Sheng Yu, Xiu-Liang Zhu, Qing-Hai Li, Department of Radiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China.
authors.forename: Xiu-Liang
authors.initials: XL
authors.lastname: Zhu
authors.affiliation: Shu-Gao Han, Ying Chen, Zi-Hua Qian, Li Yang, Ri-Sheng Yu, Xiu-Liang Zhu, Qing-Hai Li, Department of Radiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China.
authors.forename: Qing-Hai
authors.initials: QH
authors.lastname: Li
authors.affiliation: Shu-Gao Han, Ying Chen, Zi-Hua Qian, Li Yang, Ri-Sheng Yu, Xiu-Liang Zhu, Qing-Hai Li, Department of Radiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Chen
mesh_terms: D000293:Adolescent; D000328:Adult; D003556:Cystitis / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000473:pathology; D038524:Diffusion Magnetic Resonance Imaging; D004751:Enteritis / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000473:pathology; D004802:Eosinophilia / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000473:pathology; D005756:Gastritis / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000473:pathology; D006801:Humans; D007166:Immunosuppressive Agents / Q000627:therapeutic use; D008297:Male; D011237:Predictive Value of Tests; D011239:Prednisolone / Q000627:therapeutic use; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
chemical_list: D007166:Immunosuppressive Agents; D011239:Prednisolone
keywords: Computed tomography; Diffusion weighted imaging; Eosinophilic cystitis; Eosinophilic gastroenteritis; Magnetic resonance imaging