Perirectal cystic paragonimiasis: endorectal coil MRI.
We report the transrectal ultrasonographic (TRUS) and endorectal surface coil MR findings for paragonimiasis involving the perirectal space. The patient presented with voiding difficulty. TRUS showed a well demarcated, oval-shaped hyperechoic mass in the perirectal space. On endorectal MR images, the lesion was depicted as a well defined cystic mass with homogeneous intermediate signal intensity on T1-weighted images and heterogeneous hyperintensity on T2-weighted images. Ectopic paragonimiasis can appear as a well defined cystic mass in the peritoneum and should be included in the differential diagnosis of cystic mass in the abdomen and pelvic cavity, including the perirectal space.
Kim
M J
MJ
Department of Diagnostic Radiology, Yonsei University College of Medicine, Seoul, Republic of Korea.
Park
S
S
Kim
N K
NK
Kim
M J
MJ
Chung
J J
JJ
Outwater
E K
EK
D000368:Aged; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010237:Paragonimiasis / Q000175:diagnosis*; D012002:Rectal Diseases / Q000175:diagnosis*