Rectal Cancer Diagnosed after Cesarean Section in Which High Microsatellite Instability Indicated the Presence of Lynch Syndrome

Figure 4

(a) Lower anterior resection with lateral pelvic lymphadenectomy was performed after chemoradiation with S-1 (TS-1, an oral fluoropyrimidine). The rectum was swollen. (b) Histopathology of the solid tumor beneath the area of ulceration prepared via formalin fixation. A localized advanced rectal cancer was diagnosed, pStage IIA (pT3 pN0 M0).

(a)

(b)