A splendid angiomatoid (malignant) fibrous histiocytoma. As of 2013, the WHO reclassified them as angiomatoid fibrous histiocytoma, but...

This duodenal polyp is formed by gastric heterotopia (oxyntic mucosa; nodular gastric heterotopia). www.innovativesciencepress.com Case...

This neuroendocrine carcinoma of the appendix arose in association with an adenomatous precursor. Case provided by Dr. Elizabeth...