A rare retrovesical hydatid cyst and value of transrectal ultrasonography in diagnosis: a case report and review of the literature

作者：Unal Emre^*; Keles Meryem; Yazgan Sibel; Karcaaltincaba Musturay

来源：Medical Ultrasonography, 2017, 19(1): 111-113.

DOI：10.11152/mu-944

• hydatid cyst
• rectovesical pouch
• retrovesical
• ball of wool sign
• transrectal ultrasonography

We present a large hydatid cyst located midline and posterior to prostatic gland and seminal vesicles in an asymptomatic patient. Computed tomography (CT) scan revealed a large retrovesical mass and the transrectal ultrasonography idetified a degenerated hydatid cyst with "ball of wool'' appearance. Although extremely rare, hydatid disease should be kept in mind in the differential diagnosis of pelvic particularly retrovesical midline masses.

• 出版日期2017