Intestinal T-cell lymphoma presenting as colonic perforation in the setting of ulcerative colitis: a case report.

The intestinal T-cell lymphomas are a rare group of lymphatic malignancies arising from the gastrointestinal tract. They frequently manifest with non-specific clinical and radiographic findings that may mimic several other disease processes. The most common subtype is linked with refractory coeliac disease and commonly affects the small intestine.

A case report of metastatic mixed adeno-neuroendocrine carcinoma of the anus presenting as anal pain.

Introduction: Mixed adeno-neuroendocrine carcinoma (MANEC) is a rare disease, and much of the available literature to date has consisted of case reports. A recent systematic review revealed heterogeneity in the data as not all reports documented treatment regimens and course of disease. The recent 2019 WHO update on neuroendocrine carcinoma nomenclature adds to the pre-existing classification system based on biologic activity, to better represent the spectrum of neuroendocrine non-neuroendocrine tumours (Frizziero et al.