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Peritoneal inclusion cysts (PICs) are benign multilocular cysts that consist of fluid localized between intraperitoneal adhesions. They usually present in women in the third and fourth decades of life with a history of prior pelvic or abdominal surgery, especially months to 20 years ago. PICs have low mortality and the potential for high morbidity. Transvaginal ultrasound with color Doppler has an important role in the differential diagnosis. Also, a very important role is played by CA 125 plasma level or use of the ROMA algorithm. But thanks to laparoscopy and the possibility of biopsy from suspicious lesions the correct diagnosis can be established. Treatment of PICs depends individually on the patient’s condition, symptoms, other diseases, and desire for procreation. Among other contemplated are hormonal oral contraceptive, an image-guided aspiration, minimally invasive or open surgery. The issue of diagnosis and treatment of PICs requires the continuation of multicentre, randomized clinical trials to find and standardize effective, personalized treatments for PICs.

Allergic conjunctivitis is one of the most common non-traumatic extraocular inflammatory diseases. The comparison of olopatadine with ketotifen remains elusive for the treatment of allergic conjunctivitis, and this meta-analysis aims to explore the impact of olopatadine versus ketotifen on treatment efficacy for allergic conjunctivitis. PubMed, Embase, Web of Science, EBSCO, and Cochrane library databases were systematically searched, and we included randomized controlled trials (RCTs) assessing the effect of olopatadine versus ketotifen on efficacy in patients with allergic conjunctivitis. Seven RCTs were included in the meta-analysis. Overall, compared with ketotifen intervention for allergic conjunctivitis, olopatadine intervention was associated with substantially lower hyperaemia (mean difference (MD) = -0.77; 95% confidence interval (CI) = -1.24 to -0.30; = 0.001), but demonstrated no significant impact on itching, tearing or papillae. These suggested that olopatadine may be more effective to relieve the symptoms of allergic conjunctivitis than ketotifen.