Adnexal masses associated with peritoneal involvement: diagnosis with CT and MRI

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This review describes the clinical and imaging patterns of peritoneal involvement associated with adnexal lesions, aiming to help radiologists narrow differentials and make accurate diagnoses.

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This review examines how adnexal masses that spread to the peritoneum can present across a spectrum of conditions, including infections, endometriosis, and benign or malignant ovarian tumors, with an emphasis on imaging evaluation. It synthesizes clinical and CT/MRI imaging patterns used to recognize peritoneal involvement, noting that CT is typically the initial modality and that careful assessment of CT findings or additional MRI can shift the differential diagnosis away from presumed peritoneal carcinomatosis from ovarian cancer. A stated limitation is that the review is focused on pattern recognition and does not provide new diagnostic performance estimates for specific imaging sequences. Relevance to endometriosis: the paper explicitly cites endometriosis as a condition within the spectrum of adnexal diseases with peritoneal seeding and discusses associated imaging patterns, though its main focus is radiologic characterization of peritoneal involvement across multiple adnexal etiologies.

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Abstract

Given the unique intra-peritoneal anatomic location of the adnexa, tubo-ovarian diseases can commonly spread into the peritoneal cavity. Peritoneal seeding may occur in a spectrum of adnexal conditions including infectious diseases, endometriosis, and benign or malignant primary or secondary ovarian tumors. CT is usually the imaging modality on which the concomitant involvement of the peritoneum and the ovary is depicted. The first diagnosis to be considered by the radiologist is generally peritoneal carcinomatosis from ovarian cancer but other conditions cited above have also to be borne in mind and may be suggested on the basis of careful assessment of CT findings or on further MR findings. MRI may indeed help characterize the lesions in some cases. The purpose of this review is to describe the clinical and imaging patterns of peritoneal involvement that may be found in association with different ovarian lesions. Familiarity with these patterns and diagnoses will help the radiologist narrow the differential diagnosis and make an accurate diagnosis, thus facilitating patient management and avoiding unnecessary invasive treatment.
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Abstract

Given the unique intra-peritoneal anatomic location of the adnexa, tubo-ovarian diseases can commonly spread into the peritoneal cavity. Peritoneal seeding may occur in a spectrum of adnexal conditions including infectious diseases, endometriosis, and benign or malignant primary or secondary ovarian tumors. CT is usually the imaging modality on which the concomitant involvement of the peritoneum and the ovary is depicted. The first diagnosis to be considered by the radiologist is generally peritoneal carcinomatosis from ovarian cancer but other conditions cited above have also to be borne in mind and may be suggested on the basis of careful assessment of CT findings or on further MR findings. MRI may indeed help characterize the lesions in some cases. The purpose of this review is to describe the clinical and imaging patterns of peritoneal involvement that may be found in association with different ovarian lesions. Familiarity with these patterns and diagnoses will help the radiologist narrow the differential diagnosis and make an accurate diagnosis, thus facilitating patient management and avoiding unnecessary invasive treatment. Similar content being viewed by others

References

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Acknowledgements

The authors thank Pr Régent for providing iconographic material. Author information Authors and Affiliations Corresponding author Ethics declarations Funding No funding was received for this study. Conflict of interest Pierre-Jean Valette receives personal income from Philips Medical Systems for providing medical advice on image management but has no financial activities related to the present article. The other authors declare that they have no conflict of interest. Ethical approval All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The Institutional Review Board approval was obtained. Informed consent For this type of study formal consent is not required. Rights and permissions About this article Cite this article Ognong-Boulemo, A., Dohan, A., Hoeffel, C. et al. Adnexal masses associated with peritoneal involvement: diagnosis with CT and MRI. Abdom Radiol 42, 1975–1992 (2017). https://doi.org/10.1007/s00261-017-1089-4 Published: Issue date: DOI: https://doi.org/10.1007/s00261-017-1089-4

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MeSH descriptors

Adnexal Diseases Magnetic Resonance Imaging Peritoneal Diseases Tomography, X-Ray Computed Adnexal Diseases Diagnosis, Differential Female Humans Magnetic Resonance Imaging Peritoneal Diseases Tomography, X-Ray Computed

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