13-year-old female with history of pelvic rhabdomyosarcoma. Evaluate for possible relapse. PELVISUTERUS, ADNEXA: Flow voids seen within the anterior vaginal wall is unchanged. No focal lesion visualized in the uterus. BLADDER: No significant abnormality noted.LYMPH NODES: No pelvic or inguinal lymphadenopathy.BOWEL, MESENTERY: Unchanged focus of fluid signal intensity along the descending colon, likely fluid in the paracolic gutter.BONES, SOFT TISSUES: There has been interval improvement in high T2 signal seen in the marrow of the pubic symphysis. Again noted is T2 hyperintensity in the vaginal introitus and labia bilaterally. Additionally, there is new linear enhancement of the vagina (series 801, image 29). No mass or masslike enhancement is identified.OTHER: Small amount of free fluid in the pelvis.
1.New linear enhancement of the vagina is most likely secondary to vaginitis. This is a very unlikely appearance for disease recurrence.2.Persistent nonspecific T2 hyperintensity of the vaginal introitus and bilateral labia.3.Interval improvement in bone marrow signal abnormalities as above.