[Appendiceal mucocele as differential diagnostic problem of palpable mass in the right lower abdominal region].

Appendiceal mucocele is a rare disease (0.2-0.3% of all appendectomies) and it is defined as abnormal accumulation of mucoid material in the appendiceal lumen. Almost half of the patients are asymptomatic. The most common clinical manifestation is pain and palpable mass in the right iliac fossa, which is difficult to differentiate from the malignant or benign adnexal masses. By presenting our three cases, we would like to draw attention to the diagnostic difficulties of the pain and palpable mass in the right lower abdominal region.