The University of Wisconsin School of Medicine & Public Health, Madison, WI, USA.
Department of Diagnostic Radiology, Baylor College of Medicine, Houston, TX, USA.
Br J Radiol. 2021 Mar 1;94(1119):20201288. doi: 10.1259/bjr.20201288. Epub 2021 Jan 5.
Pathologic involvement of the peritoneum can result from a wide variety of conditions, including both neoplastic and non-neoplastic entities. Neoplastic involvement of the peritoneal ligaments, mesenteries, and spaces from malignant spread of epithelial cancers, termed peritoneal carcinomatosis, is frequently encountered at CT evaluation. However, a host of other more unusual benign and malignant neoplasms can manifest with peritoneal disease, including both primary and secondary peritoneal processes, many of which can closely mimic peritoneal carcinomatosis at CT. In this review, we discuss a wide array of unusual peritoneal-based neoplasms that can resemble the more common peritoneal carcinomatosis. Beyond reviewing the salient features for each of these entities, particular emphasis is placed on any specific clinical and CT imaging clues that may allow the interpreting radiologist to appropriately narrow the differential diagnosis and, in some cases, make an imaging-specific diagnosis.
腹膜的病变可能由多种情况引起，包括肿瘤性和非肿瘤性病变。腹膜韧带、肠系膜和上皮性癌转移引起的腹膜间隙的肿瘤性累及，称为腹膜转移癌，在 CT 评估中经常遇到。然而，还有许多其他更不常见的良性和恶性肿瘤也可以表现为腹膜疾病，包括原发性和继发性腹膜过程，其中许多在 CT 上可与腹膜转移癌非常相似。在这篇综述中，我们讨论了一系列可以类似于更常见的腹膜转移癌的不同寻常的腹膜肿瘤。除了回顾这些病变的主要特征外，特别强调了可能使放射科医生能够适当缩小鉴别诊断范围的任何特定的临床和 CT 成像线索，并且在某些情况下能够进行成像特异性诊断。
