Bannayan-Riley-Rubalcaba syndrome in pediatrics

Abstract

Background: Bannayan-Riley-Ruvalcaba syndrome (BRRS) is part of the PTEN tumor-hamartoma disease, which includes the Cowden, Proteus and Proteus-like syndromes, which present a spectrum of skin, mucosal, breast, thyroid, and gastrointestinal tract lesions, as well as autosomal dominant hereditary polypomatosis. BRRS is characterized by macrocephaly, lipomatosis, hemangiomatosis, intestinal polyps, genital lentiginosis, and intellectual disability. Clinical diagnosis and diagnosis of pathogenic variants in the PTEN gene, detectable in 60% of those affected, provides the opportunity for appropriate management and genetic counseling. Case report: We report the case of a school-age patient who was sent to an initial dermatological evaluation for presenting a history of macrocephaly at birth, genital lentiginosis, delayed psychomotor development and later rectal bleeding secondary to intestinal polypomatosis. A clinical and molecular diagnosis of BRRS was carried out. Conclusions: BRRS is rare, which can delay the diagnosis for patients and relatives at risk, so it is important to know its clinical characteristics in pediatric patients to achieve a timely diagnosis and management.