<prompt> A child with retarded growth came with triangular face, micrognathia, tripod skull and fifth finger clinodactyly. What is the probable diagnosis?Russell Silver syndromeBeckwith - Wiedemann syndromeAngelman syndromePrader - Willi syndrome  <response>: Russell Silver syndrome : Sho stature Craniofacial and body asymmetry Low bih weight Microcephaly Triangular facies Fifth finger clinodactyly Congenital cardiac defects Beckwith - Wiedemann syndrome - hemihyperophy, macroglossia, omphalocele, organomegaly Wilms tumour. Angelman syndrome- Seizures, ataxia, mental retardation, inappropriate laughter happy puppets. Prader - Willi syndrome- Mental retardation, obesity, hypotonia, hypogonadism. 