microcephalic osteodysplastic primordial dwarfism type II (Monarch Disease Ontology id MONDO_0008872) is a form of microcephalic primordial dwarfism (MPD) characterized by severe pre- and postnatal growth retardation, with marked microcephaly in proportion to body size, skeletal dysplasia, abnormal dentition, insulin resistance, and increased risk for cerebrovascular disease. Also known as: MOPD type II, Majewski osteodysplastic primordial dwarfism type II, osteodysplastic primordial dwarfism type II.