Bannayan–Riley–Ruvalcaba syndrome (BRRS) Associated with type1 diabetis and hyperlipidemia
Author(s): Fakhriah Mustafa Madani, Nabilah sulaimani, Amal Alwedainani,Saleh Alshanbari, Fouzia ahmed Alsobhi, Reem
Batawi, Najia owish Al hojaili, Khulud abdurhman Sadaqah
Bannayan–Riley–Ruvalcaba syndrome (BRRS) is a rare overgrowth syndrome and hamartomatous disorder with occurrence of multiple
subcutaneous lipomas, macrocephaly, and hemangiomas. The disease is inherited in an autosomal dominant manner . The disease belongs
to a family of hamartomatous polyposis syndromes, which also includes Peutz–Jeghers syndrome, juvenile polyposis, and Cowden syndrome.
Mutation of the PTEN gene underlies this syndrome, as well as Cowden syndrome, Proteus syndrome, and Proteus-like syndrome, these four
syndromes are referred to as PTEN Hamartoma-Tumor Syndromes 
A rare developmental defect during embryogenesis characterized by hamartomatous intestinal polyposis, lipomas, macrocephaly and genital
lentiginosis. The features of Bannayan-Riley-Ruvalcaba syndrome overlap with those of another disorder called Cowden syndrome. People
with Cowden syndrome develop hamartomas and other noncancerous growths; they also have an increased risk of developing certain types
of cancer. Both conditions can be caused by mutations in the PTEN gene. Some people with Bannayan-Riley-Ruvalcaba syndrome have
had relatives diagnosed with Cowden syndrome, and other individuals have had the characteristic features of both conditions. Based on
these similarities, researchers have proposed that Bannayan-Riley-Ruvalcaba syndrome and Cowden syndrome represent a spectrum of
overlapping features known as PTEN hamartoma tumor syndrome instead of two distinct conditions.