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INTRODUCTION: Distal blockage of the Bartholin's gland duct can result in the retention of secretions, with consequent formation of a cyst or abscess. CASE REPORT: A 57-year-old woman, in whom a bulky vulvar mass in the left labia majora was detected during cystoscopy for urinary symptoms, was referred to the gynaecology clinic. We performed complete removal of the mass as well as ipsilateral vulvar reconstruction. Histological analysis confirmed a large benign Bartholin's duct cyst without acute infection. DISCUSSION: Epidermoid cysts take a long time to develop and so large cysts are rare. The differential diagnosis of a Bartholin's cystic mass should be considered among many other pathologies in the vulvovaginal area. Treatment with complete surgical excision should be carefully performed, under prophylactic antibiotic coverage if required. CONCLUSION: Urogynaecological complaints require a careful consideration of the symptoms and an adequate physical examination before additional tests are requested. Although a differential diagnosis can be made preoperatively, confirmation is necessarily histological.
RESUMO
This study evaluates and compares the effectiveness of solar photo-Fenton systems for the inactivation of hepatitis A virus (HAV) in water. The effect of solar irradiance, dark- Fenton reaction and three different reactant concentrations (2.5/5, 5/10 and 10/20 mg/L of Fe2+/H2O2) on the photo-Fenton process were tested in glass bottle reactors (200 mL) during 6 h under natural sunlight. Disinfection kinetics were determined both by RT-qPCR and infectivity assays. Mean water temperatures ranged from 25 to 27.3 °C, with a maximum local noon UV irradiances of 22.36 W/m2. Photo-Fenton systems yielded increased viral reduction rates in comparison with the isolated effect under the Fenton reaction in darkness (negligible viral reduction) or the solar radiation (0.25 Log of RNA reduction). With the highest concentration employed (10-20 mg/L Fe2+-H2O2), an average RNA reduction rate of ~ 1.8 Log (initial concentration of 105 pfu/mL) and a reduction of 80% in the infectivity capacity were reached. Results showed a strong synergistic effect between Fe2+/H2O2 and sunlight, demonstrating that significant disinfection rates of HAV under photo-Fenton systems may occur with relatively higher efficiency at middle environmental temperatures and without the need for an energy-intensive light source.