<prompt> All of the following are seen in RASopathies except:Hair abnormalitiesCraniofacial abnormalitiesKeratosis pilarisDesquamation of skin  <response>: Ans: d Desquamation of skinGenetic Home ReferenceThis is an entirely new topic, not for an undergraduate. Know the below and no need to learn anything more for a normal exam. Any further questions of this difficult nature will not be a competition in exams as almost for every student these questions will be a Doosra.RASopathies include:Neurofibromatosis type 1 NF1Noonan syndrome NSNoonan syndrome with multiple lentigines NSMLCapillary malformation-ateriovenous malformation syndrome CM-AVMCostello syndrome CSCardio-facio-cutaneous syndrome CFCLegius syndrome.Skin FindingsEctodermal findings typically consist of sparse, curly hair with sparse eyebrows and eyelashes, hyperkeratosis, keratosis pilaris, hemangioma, ichthyosis and progressively forming nevi.Desquamation of skin is not a finding in RAS-o-Pathies. 