SENARRIAGA RUIZ DE LA ILLA, Nerea et al. Pelvic hydatid disease as an example of pelvic masses of uncertain aetiology. []. , 33, 10, pp.1129-1132. ISSN 0210-4806.

We present two new cases of pelvic hydatid cysts, one with a clinical profile of local compression and the other one asymptomatic. The first case is a 75 year-old man who reported difficulty defecating and urinating. The ultrasound revealed a large cystic pelvic mass displacing the bladder and rectosigmoid region. Computed tomography also showed images compatible with hydatid disease and a hydatid liver cyst. The patient underwent a surgical procedure, and the pelvic cyst was partially excised. The other case is an asymptomatic 75 year-old man with pelvic hydatid disease that was discovered by chance while examining a prostatic adenoma. Because he is asymptomatic, we opted for observation. The anatomical pathology study confirmed the diagnosis in the first case and radiological findings confirmed the second. Both patients remain asymptomatic. Hydatid disease must be considered in the differential diagnosis for any cystic masses in the pelvic organs, especially in countries where the disease is endemic. Although no 100% specific serological test exists, there are some radiological procedures which can help us to confirm the disease. Surgery is the treatment of choice.

: Hydatid cyst; Pelvis; Kidney; Echinococcal.

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