The appendiceal mass is a common complication in the natural evolution of acute appendicitis, often manifested by a mass in the right quadrant, ranging from the appendiceal phlegmon to the collected abscess. Our study consist on determining the epidemiological, clinical, diagnostic and therapeutic aspects in the care of the appendiceal plastron, as well as the role of surgery in this special care. This is a retrospective study including 30 cases of appendiceal mass, excluding appendicular abscesses, collected to the general surgery department of the military hospital Avicenne of Marrakesh, over a period of 5 years, from January 2011 to December 2015