Monarch Disease Ontology identifier MONDO_0013899 (Weill-Marchesani syndrome 3) is any Weill-Marchesani syndrome in which the cause of the disease is a mutation in the LTBP2 gene. Also known as: LTBP2 Weill-Marchesani syndrome, Weill-Marchesani syndrome 3, recessive, Weill-Marchesani syndrome caused by mutation in LTBP2, Weill-Marchesani syndrome type 3.