Primary Signet Ring Cell Carcinoma of Rectum Diagnosed by Boring Biopsy in Combination with Endoscopic Mucosal Resection

<div>Hematoxylin and eosin (a) and periodic acid-Schiff (b) staining demonstrate scattered SRCC cells (arrows) in the lamina propria mucosae with fibrous stromal reaction.</div>

Case Reports in Medicine

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Figure 4: Primary Signet Ring Cell Carcinoma of Rectum Diagnosed by Boring Biopsy in Combination with Endoscopic Mucosal Resection 