PMC10116390_01
CT abdomen and pelvis as well as MRI pelvis of a patient presenting with clinical signs and symptoms of Fournier's Gangrene. a, b Mass-like rectal wall thickening as well as left perirectal fat stranding with foci of air in the left perirectal soft tissues that extend into the left pelvic sidewall, perineum, buttocks, and left proximal thigh. c Large exophytic soft tissue mass arising off the posterior wall of the rectum. d Multiple rim-enhancing perirectal abscesses.
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F1
CT abdomen/pelvis showed a mass-like rectal wall thickening, as well as left perirectal fat stranding with foci of air in the left perirectal soft tissues that extended into the left pelvic sidewall, buttocks, proximal thigh, and perineum (Fig. 1a, b). CT chest and MRI pelvis revealed no bone, lung, omental, or lymph node involvement, whereas the latter also showed a 7.4 cm x 5 cm x 5 cm rectal mass and multiple perirectal abscesses (Fig. 1c, d).
MRI pelvis after neoadjuvant chemotherapy (FOLFOX) showing decreased tumor size.
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F2
As an outpatient, imaging demonstrated partial response to the chemotherapy where the tumor had shrunk to 3.4 cm x 3.4 cm x 3.2 cm (Fig. 2).