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.
Department of Diagnostic Radiology, Yonsei University College of Medicine, Seoul, Republic of Korea.
M J
MJ
Kim
S
S
Park
N K
NK
Kim
M J
MJ
Kim
J J
JJ
Chung
E K
EK
Outwater
D000368:Aged; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010237:Paragonimiasis / Q000175:diagnosis*; D012002:Rectal Diseases / Q000175:diagnosis*