<prompt> Diplegia means:Weakness of upper limbsWeakness of lower limbsWeakness of unilateral upper and lower limbsWeakness of the all four limbs  <response>: Ref: Nelsons Textbook of Pediatrics 18th edition: page no.2494-95Explanation:All these terminology are used to describe cerebral palsy in childrenSpastic hemiplegia is a weakness of unilateral upper and lower limbs. The arm is often more involved than the leg.Spastic diplegia is bilateral spasticity of the legs greater than in the armsSpastic quadriplegia is the most severe form of CP because of marked motor impairment of all extremities and the high association with mental retardation and seizures. See the following tableClassification of Cerebral Palsy and Major CausesMotor SyndromeNeuropathologyMajor CausesSpastic diplegiaPeriventricular leukomalacia PVLPrematurityIschemiaSpastic quadriplegiaMulti cystic encephalomalacia. MalformationsIschemia, infection geneticdevelopmentalHemiplegiaStroke :in utero or neonatalThrombophilic disorders InfectionGeneticdevelopmental Periventricular hemorrhagic infarctionExtra pyramidal athetoid, dyskineticPathology:putamen, globus pallidus, thalamus, basal gangliaAsphyxiaKernicterus 