Importance of immunohistochemistry in the differential diagnosis of gastric mesenchymal tumors.

Although morphology is the key to histological diagnosis, gastric mesenchymal tumors can share very similar growth and cellularity patterns, sometimes being indistinguishable. Therefore, immunohistochemical techniques are going to be crucial in the definitive diagnosis. The objective of this work is to perform an immunohistochemical differential diagnosis of gastric mesenchymal tumors.

Surgical indication for right hemicolectomy in goblet cell adenocarcinoma of the appendix.

We have read with interest the article by Pérez Montiel CA et al., in which goblet cell adenocarcinoma (GCA) is described as a cause of acute appendicitis. Although the article is brilliant in terms of histopathological description of the appendiceal GCA, the surgical indication for right hemicolectomy should be analyzed in depth due to the great controversy that exists in the scientific literature.