深在性囊性胃炎，又称囊性息肉状胃炎，是一种罕见的胃黏膜下病变。其发病为各种原因导致的胃黏膜破坏，胃黏膜腺体向黏膜肌层以下生长并形成囊性扩张所致。既往认为该病是一种良性病变，但现在越来越多的研究认为深在性囊性胃炎是一种癌前病变、具有恶性进展的潜能。近年来，随着消化内镜诊治技术的迅猛发展以及病理诊断水平的不断提高，对深在性囊性胃炎的认识及诊治都取得了长足的进展。本文将从深在性囊性胃炎的病因、发病机制、疾病性质、诊断与鉴别诊断、治疗与预后等方面作一综述，为临床合理诊治该疾病作一参考。

Gastritis cystica profunda(GCP), also known as gastritis cystica polypsa in the past, is a rare gastric submucosal lesion. It is caused by the destruction of gastric mucosa caused by various reasons. The glands of gastric mucosa grow below the muscularis mucosa and form cystic dilatation. In the past, the disease was considered as a benign disease, but now more and more studies reveal that the GCP is a precancerous disease with the potential of malignant progress. In recent years, with the rapid development of endoscopy technology and the continuous improvement of pathological diagnosis, great progress has been made in the understanding, diagnosis and treatment of GCP. This article reviews the etiology, pathogenesis, nature, diagnosis, differential diagnosis, treatment and prognosis of cystic gastritis, so as to provide a reference for clinical rational diagnosis and treatment of the disease.