Journal of Clinical Medicine Research, ISSN 1918-3003 print, 1918-3011 online, Open Access
Article copyright, the authors; Journal compilation copyright, J Clin Med Res and Elmer Press Inc
Journal website http://www.jocmr.org

Case Report

Volume 7, Number 7, July 2015, pages 571-574

Transformation of Low-Grade Mucinous Neoplasm of the Appendix With Pseudomyxoma Peritonei to High-Grade Sarcomatoid Carcinoma

Figures

Figure 1.
Figure 1. Abdominal computed tomographic scan before the initial operation showing massive ascites and peritoneal thickening with coarse calcifications.
Figure 2.
Figure 2. Microscopic appearance of the appendiceal tumor showing tall columnar epithelium with abundant extracellular mucin involving the submucosa and muscularis propria. Epithelium had no cytologic atypia or mitosis. The lumen was filled with pus and mucoid material (hematoxylin-eosin stain, original magnification, × 10; inset, × 200).
Figure 3.
Figure 3. Abdominal computed tomographic scan after disease recurrence showing rim-enhanced lesions with calcification over rectus abdominis muscle and peritoneum (arrows).
Figure 4.
Figure 4. Biopsy of the recurrent lesions showing spindling and epithelioid pleomorphic tumor cells (hematoxylin-eosin stain, original magnification, × 10).