Question: What are clinical features of the de Morsier syndrome?

Context:
 SOD was formerly known as de Morsier syndrome, which associated a midline brain defect such as an absent septum pellucidum with optic nerve hypoplasia.
The triad consists of optic nerve hypoplasia, pituitary hormone abnormalities, and midline brain defects, although it can vary in the severity of clinical presentation and phenotype. 
INTRODUCTION: Previous studies have described septooptic dysplasia (SOD) to describe patients who have optic nerve hypoplasia, the absence of septum pellucidum, and pituitary hypoplasia.
BACKGROUND: Septo-optic dysplasia, also referred to as de Morsier syndrome, is a congenital condition characterized by classic triad features: midline brain abnormalities, optic nerve hypoplasia and pituitary endocrine dysfunction. 
Septo-optic dysplasia (SOD), otherwise called De Morsier syndrome, is a developmental anomaly of mid-line brain structures and includes optic nerve hypoplasia, absence of the septum pellucidum and hypothalamo-pituitary abnormalities). 
The frequently associated features of hypopituitarism and absent septum pellucidum were felt to have embryonic linkage as "septo-optic dysplasia" or "de Morsier's syndrome."
An MRI of the brain demonstrated the absence of the septum pellucidum, which confirmed a diagnosis of septo-optic dysplasia or de Morsier syndrome.
Septo-optic dysplasia (De Morsier syndrome) is a developmental anomaly of mid-line brain structures and includes optic nerve hypoplasia, absence of the septum pellucidum and hypothalamo-pituitary abnormalities.
Septo-optic dysplasia, also known as de Morsier syndrome, is a rare congenital entity almost always characterized by hypoplasia/dysplasia of the optical nerve, chiasma or optic radiations and the complete or partial absence of the septum pellucidum.
The de Morsier syndrome, or septo-optic dysplasia, is a developmental anomaly characterized by involvement of the optic system, hypothalamic-pituitary axis and septum pellucidum.
The term septooptic dysplasia was coined in 1956 by de Morsier, who pointed out the association of optic nerve hypoplasia and absence of the septum pellucidum.
Septo-optic dysplasia, also referred to as de Morsier syndrome, is a congenital condition characterized by classic triad features: midline brain abnormalities, optic nerve hypoplasia and pituitary endocrine dysfunction
Septo-optic dysplasia (SOD), also referred to as de Morsier syndrome, is a rare congenital condition, characterized by two of the classic triad features: midline brain abnormalities, optic nerve hypoplasia (ONH) and pituitary endocrine dysfunction
Septo-optic dysplasia (SOD), also referred to as de Morsier syndrome, is a rare congenital condition, characterized by two of the classic triad features: midline brain abnormalities, optic nerve hypoplasia (ONH) and pituitary endocrine dysfunction. 
Septo-optic dysplasia, also referred to as de Morsier syndrome, is a congenital condition characterized by classic triad features: midline brain abnormalities, optic nerve hypoplasia and pituitary endocrine dysfunction.
Septo-optic dysplasia (SOD), also referred to as de Morsier syndrome, is a rare congenital condition, characterized by two of the classic triad features: midline brain abnormalities, optic nerve hypoplasia (ONH) and pituitary endocrine dysfunction.
[Optic nerve hypoplasia and growth hormone deficiency: de Morsier's syndrome].

Answer: Classic triad of the De Morsier syndrome (septooptic dysplasia) includes optic nerve hypoplasia, the absence of septum pellucidum, and pituitary hypoplasia.
Exact answer: optic nerve hypoplasia, absence of septum pellucidum, pituitary hypoplasia