Are patients with autoimmune thyroid disease and autoimmune gastritis at risk of gastric neuroendocrine neoplasms type 1?

Objective: The aim of this study was to investigate the prevalence of autoimmune gastritis, enterochromaffin-like cell (ECL-cell) hyperplasia and gastric neuroendocrine neoplasms type 1 (GNEN1) in patients with autoimmune thyroid disease.

Design: Prospective observational study in a single institutional study.

Patients And Measurements: One hundred and twenty patients with autoimmune thyroid disease were consecutively recruited from the Endocrine Unit.

Primary hyperparathyroidism in patients with gastric carcinoid tumors type 1: an unusual coexistence.

Objective: Although a number of familiar syndromes are associated with primary hyperparathyroidism (PHP), there is no information regarding the prevalence of PHP in other sporadic neuroendocrine diseases. The aim of this study is to investigate the prevalence of PHP in our group of patients with gastric carcinoid (GC) type 1 tumors.

Methods: Twenty-six patients with biopsy-proven GC type 1 tumors were retrospectively studied.