PMC6159174_01
CT NC axial: a well-defined thin-walled smooth cystic SOL (C) compressing the anteriorly displaced rectum (R). UB, urinary bladder.
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(I) Non-contrast and contrast enhanced CT:Figure 1,2.
MRI axial: axial and sagittal T2 weighted images show the septa and a mural nodule within. The cyst wall appears to be tightly adherent to the posterior wall of the rectum (R). Urinary bladder (UB) with catheter bulb (B) in situ noted. S, sacrum; P, pubic bone.
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(II) MRI:Figure 3, 4.
MRI sag: axial and sagittal T2 weighted images show the septa and a mural nodule within. The cyst wall appears to be tightly adherent to the posterior wall of the rectum (R). Urinary bladder (UB) with catheter bulb (B) in situ noted. S, sacrum; P, pubic bone.
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(II) MRI:Figure 3, 4.
HPE: Section examined shows colonic tissues showing mucosa and sub mucosa. The mucosa contains crypts and glandular structures lined by mucus secreting tall columnar cells with basal nuclei. The sub-mucosa shows no significant histological abnormality.
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(III) HPE:Figure 5.