Abstract
We report the occurrence of symmetrical thalamic calcifications (STC) in one of a
pair of monozygotic twins born at term without evidence of pre- or peri-natal asphyxia.
STC is known to be an extremely rare condition in infants. Judging from the few cases
reported in the literature, the clinical presentation is very severe: low Apgar score,
no spontaneous movements, spasticity or marked hypotonia, impaired suck and swallow,
facial diplegia. The prognosis is also very poor. The etiology is still a matter of
debate: genetic, infectious, toxic or hypoxic-ischemic insults have been hypothesized.
In our case, the presence of the lesion in one of a pair of monozygotic twins would
rule out any genetic origin, nor was there any evidence of toxic or infectious disease.
The only potential risk factor for fetal damage was hypoxic-ischemic insult related
to the twin pregnancy.
Keywords
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References
- Symmetrical infantile thalamic degeneration in two sibs.J Med Genet. 1981; 18: 448-450
- Axonal dystrophy in a case of connatal thalamic and brain stem degeneration.Acta Neuropathol. 1984; 64: 68-71
- Symmetrical thalamic degeneration with calcifications of infancy.Am J Dis Child. 1989; 143: 1056-1060
- Symmetrical thalamic lesions in infants.Arch Dis Child. 1992; 67: 15-19
- Antenatal thalamic lesions in the newborn: two anatomoclinical cases.Brain Dev. 1997; 19: 495-498
- Discordant infantile encephalopathy with symmetrical thalamic calcifications in identical twins.Am J Med Genet. 1994; 52: 218-222
- Neurology of the newborn. 3rd ed. Saunders, Philadelphia, PA1999
- Damage of thalamus and basal ganglia in asphyxiated full-term neonates.Neuropediatrics. 1987; 18: 176-181
- Anoxic-ischemic encephalopathy in the human neonatal period. The significance of brain stem involvement.Arch Neurol. 1977; 34: 109-113
- Brain damage in monozygous twins.Biol Neonate. 1990; 57: 261-278
Article info
Publication history
Accepted:
April 14,
2004
Received in revised form:
April 8,
2004
Received:
May 13,
2002
Identification
Copyright
© 2004 Elsevier B.V. Published by Elsevier Inc. All rights reserved.