Abstract
Primary retroperitoneal serous cystadenomas (PRSCs) are rare cystic lesions whose
pathogenesis is currently not well understood. Although the vast majority of tumors
are benign, early recognition and resection is necessary to avoid malignant transformation,
rupture, and secondary infection. Here we present the case of a 79-year-old woman
who presented with confusion, visual hallucinations, and a history of fall. As part
of the work-up for abdominal distension, computed tomography scan of the abdomen and
pelvis was performed, which revealed a right-sided retroperitoneal cystic lesion measuring
26.6 × 16.7 cm in size. The lesion was resected laparoscopically, and the surgical
specimen measured 28 × 17 cm. Histology revealed a serous cystadenoma. The postsurgical
course was uneventful, and no radiological recurrence was noted on 3 months follow-up.
Very few primary retroperitoneal cystic lesions have been reported in the literature.
Most lesions are benign and predominantly occur in females. They may remain asymptomatic
for long periods of time and are usually discovered when they reach very large in
size. In rare cases, these lesions may have malignant potential. Diagnosis of PRSC
should be considered in the differential diagnosis of all retroperitoneal cysts.
Keywords
primary - retroperitoneal - serous - cystadenomas - cystic
