Retroperitoneal pseudolymphadenopathy

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Murine Bilateral Renal Lymphadenectomy

Murine Bilateral Renal Lymphadenectomy

Published on: December 30, 2025

G T Thompson, R J Jackson, M P Pirani

Journal of the Canadian Association of Radiologists

|December 1, 1983

Abstract:

Computed tomography is very sensitive in detecting enlarged retroperitoneal lymph nodes. Several structures such as vessels, bowel loops, fibrous tissue and hemorrhage can simulate pathologic retroperitoneal nodal enlargement. A thorough awareness of the normal retroperitoneal anatomy will help in correct interpretations and may obviate the need for more invasive diagnostic procedures.

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Appendicitis

Appendicitis

Appendicitis is an acute inflammatory condition of the vermiform appendix, most commonly caused by obstruction of its lumen. The appendix is a narrow, blind-ended pouch that extends from the cecum, making it particularly prone to obstruction. Causes include fecaliths, lymphoid hyperplasia (often after viral infections), parasites, tumors, or foreign bodies. This obstruction initiates a cascade of pathological changes.Luminal Obstruction and Early InflammationAfter obstruction, normal mucosal...

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