POSTER SECTIONS Coverpage Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References

ECR 2024 / C-17313

Certificate of Merit

Solid primary retroperitoneal tumors: an algorithmic approach

Congress:

ECR 2024

Poster Number:

C-17313

Type:

Educational Exhibit

Keywords:

Abdomen, Oncology, Retroperitoneum, CT, MR, Diagnostic procedure, Education, Neoplasia

Authors:

C.-G. Pitusac-Prisacaru, C. Lupascu-Ursulescu, L. Gheorghe, C.-E. Hincu, D. Negru

DOI:

10.26044/ecr2024/C-17313

DOI-Link:

https://dx.doi.org/10.26044/ecr2024/C-17313

Conclusion

Solid retroperitoneal tumors are rare and represent diverse groups of lesions with overlapping and non-specific imaging findings;

A systematic approach to such lesions is essential and implies knowledge of retroperitoneal anatomy and characteristic imaging findings, such as the composition, enhancement pattern, location, spread, and growth pattern, combined with clinical information.

Fig 1: Anatomy of retroperitoneal space. APS- Anterior Pararenal Space; PRS-...

Fig 2: Table 1. Classification of retroperitoneal neoplastic lesions according to the...

Fig 3: (A) Axial contrast-enhanced CT image of a 40-year-old man reveals a...

Fig 4: Negative “embedded organ” sign (A) Post-contrast axial CT image shows a...

Fig 5: “Phantom organ” sign. (A) Contrast-enhanced axial CT image of a 40-year-old...

Fig 6: Prominent feeding artery. MIP reconstruction of coronal and axial...

Fig 7: Differential diagnosis of solid retroperitoneal lesions according to the...

Fig 8: Differential diagnosis of solid retroperitoneal lesions based on the...

Fig 9: Scheme for the differential diagnosis of solid retroperitoneal lesions...

Fig 11: Well-differentiated liposarcoma. (A) coronal arterial phase CECT; (B) axial...

Fig 12: De-differentiated liposarcoma: (A) arterial phase axial CECT; (B) venous phase...

Fig 14: Retroperitoneal non-Hodking lymphoma: Arterial phase CECT (A) coronal plane...

Fig 16: Abdominal axial MRI images illustrating a left paraaortic nodular lesion (A)...

Fig 19: Contrast-enhanced CT images of a 56-year-old man (A) arterial phase (B) venous...

Fig 10: Particular signs that can suggest a specific type of solid retroperitoneal...

Fig 13: Retroperitoneal leiomyosarcoma: (A) sagittal arterial phase CECT; (B)...

Fig 15: Mature teratoma: Abdominal CECT (A) sagittal plane ; (B) non-enhanced CT; (C)...

Fig 17: Axial contrast-enhanced CT images of a 76-year-old man (A) arterial phase (B)...

Fig 18: (A, B, C, D) Pelvic MRI images illustrating a well-defined nodular lesion, with...

Fig 20: Cystic lymphangioma - coronal and axial T2 weighted MRI images showing a...

Fig 21: Cystic lymphangioma in a 44-year-old woman. Axial (A) T1w fat-suppression and...

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