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Copyright of Der Internist is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Der Radiologe is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Rechtsmedizin is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

A 71-year-old man presented to this clinic for evaluation of an unclear abdominal tumor. He complained of abdominal pain, weight loss and motility disorders, which began some weeks previously. Ultrasound and computed tomography (CT) scans showed a large mesenterial space-occupying lesion with accompanying lymphadenopathy, slight accumulation of ascites and venous congestion. For confirmation of the suspected diagnosis of a sclerosing mesenteritis and exclusion of a lymphoma a laparoscopy was carried out with excision of tissue. The material was not adequately representative so that a laparotomy was carried out for removal of a new tissue specimen. The tissue specimen confirmed the rare diagnosis of sclerosing mesenteritis and due to the complaints a pharmaceutical treatment with prednisone and tamoxifen was initiated., (© 2021. Springer Medizin Verlag GmbH, ein Teil von Springer Nature.)

Copyright of Der Urologe A is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Background: Sclerosing mesenteritis (SM) and mesenteric panniculitis are rare processes of the mesentery which pose a major clinical and imaging challenge. This review article attempts to introduce a systematic nomenclature to address typical symptoms, imaging and major differential diagnoses., Results: SM with its subtypes-mesenteric lipodystrophy, panniculitis and retractile mesenteritis-is a chronic process with a very diverse and heterogeneous clinical appearance. The typical radiological characteristics ("misty mesentery", increased lymph nodes, pseudocapsule and "fat halo") are also not very specific. A link between SM and malignant diseases is not proven, but there is controversial discussion. Therefore, if there are doubts about the diagnosis, further examinations and a biopsy are desired., Conclusion: When diagnosing SM, "red flags", i. e. characteristics that are atypical for SM in imaging, should be considered. In case of ambiguous imaging, differential diagnostics should also consider malignant diseases and exclude them.

The IgG4-associated diseases of connective tissue are caused by allergen-mediated autoimmune processes. The retroperitoneum, mesentery and mediastinum as well as other less common localizations, such as the neck, orbit and periarticular connective tissue can be affected. Inflammatory fibrosis is initially dominated by a lymphocytic and plasma cell-rich infiltrate and later by cell-poor storiform fibrosis. Stenosis and occlusion of vessels, ureters and intestines can cause severe complications. Computed tomography (CT) and magnetic resonance imaging (MRI) can be implemented in the diagnostic algorithm to narrow the differential diagnosis, delineate the distribution of fibrosis and reveal complications.