Simple and complex renal cysts in adults: Classification system for renal cystic masses.

Ultrasound and slice imaging are currently the key modalities for diagnosing simple renal cysts. Benign simple renal cysts are defined by a set of strict criteria. Any cystic lesions that do not meet these criteria should be classified as "atypical" or "complex" and considered as suspicious. For over three decades, the Bosniak classification has been the central tool for diagnosing renal cystic masses larger than 1 cm. The Bosniak classification is based upon the results of a well-established pre- and post-contrast computed tomography (CT) protocol. Lesions that are difficult to classify or that remain indeterminate after CT can benefit from a multimodal diagnostic approach combining CT, non-contrast-enhanced and contrast-enhanced ultrasound, and magnetic resonance imaging.

[Perineal groove: Case report and review of the literature]. / Rainure périnéale congénitale : à propos d'un cas.

Perineal groove is a rare anoperineal congenital malformation, usually occurring in girls, unknown to many pediatricians. We report the case of a 17-day-old girl admitted for urinary infection, who presented a wet sulcus with mucous membrane, extending from the vaginal fourchette to the anterior border of the anus. The diagnosis of perineal groove was clinically confirmed, after elimination of misdiagnosis such as infection or trauma. This benign malformation tends to be self-epithelialized in the 1st year of life, and no surgical treatment is recommended, except for cosmetic reasons or for recurrent infections. This diagnosis must be known so as to avoid unnecessary explorations and anxiogenic misdiagnosis.