Pericoccygeal hidrocystoma.
We report the imaging findings of pericoccygeal hidrocystoma in a 52-year-old woman. Sonography showed a large cystic lesion with internal echoes in the pericoccygeal region; it appeared as a well-defined, low-density mass on CT, and as a high-signal-intensity mass on T1- and T2-weighted MR images. Histopathologic examination revealed an apocrine hidrocystoma.
Chin
S C
SC
Department of Diagnostic Radiology, Tri-Service General Hospital, National Defensive Medical Center, Taipei, Taiwan, ROC.
Chen
C Y
CY
Zimmerman
R A
RA
D005260:Female; D018251:Hidrocystoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D012445:Sacrococcygeal Region; D013544:Sweat Gland Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D014463:Ultrasonography