Atlas of Gastrointestinal Imaging Figure 2.1.4 Colonic perforation from toxic ulcerative colitis

Dr. Perry Pickhardt
Aug 26, 2007
FIGURE 2.1.4 Colonic perforation from toxic ulcerative colitis. Supine radiograph (A) from a patient with severe abdominal pain and leukocytosis shows colonic fold thickening ("thumbprinting") and massive pneumoperitoneum (Rigler's sign) related to perforation from toxic colitis. This was the initial presentation of UC in this patient. Contrast-enhanced CT image (B) from another patient with colonic perforation from UC shows massive intraperitoneal air (asterisks) anterior to an inflamed transverse colon. Note the prominent inflammatory pseudopolyp (arrowhead).
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Images in a 62-year-old woman who presented for screening. (A) Image from DBT screening (the synthesized 2D mediolateral oblique view of the left breast is shown) at year on was interpreted as negative and showing heterogeneously dense breast. (B) Image from molecular breast imaging screening (mediolateral oblique view) at year one reveals a 0.9-cm non-mass focal area of uptake in the left breast (arrow). (C) Targeted ultrasound scan (transverse image) shows a suspicious mass in the 3-o’clock position of the left breast, 4 cm from the nipple. Ultrasound-guided core biopsy and lumpectomy revealed a 0.9-cm grade 2 invasive ductal carcinoma, an estrogen receptor–negative, progesterone receptor–negative, human epidermal growth factor receptor 2–negative lesion, with two sentinel nodes negative (N0).
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