HYDRANENCEPHALY

PORENCEPHALY  

Partial or subtotal defects in cerebral hemispheres due to ischemia, hemorrhage infection or tumor (1). Occurs between the second trimester and early post natal period. 

PORENCEPHALY 

 

 

 

HYDRANENCEPHALY  

 

ULTRASOUND

 

 

 

 

No cerebral cortex; Falx intact and usually present

 

DIFFERENTIAL DIAGNOSIS

 

 

ASSOCIATED SYNDROMES

 

 

 

REFERENCES

  1. Volpe JJ. Hypoxic-ischemic encephalopathy, neuropathology, and pathogenesis. In: Neurology of the newborn: Neuronal proliferation, migration, organization and myelination. Philadelphia, WB Saunders;1995:299-307.
  2. Myers RE. Brain pathology following fetal vascular occlusion: an experimental study. Invest Opthalmol 1969;8:41-50.
  3. Greene MF, Benacerraf B, Crawford JM. Hydranencephaly: Ultrasound appearance during in utero evolution. Radiology 1985;156:779-780.
  4. Lin YS, Chang FM, Liu CH. Antenatal detection of Hydranencephaly at 12 weeks menstrual age. J Clin Ultrasound 1992;20:62-64.
  5. Edmondson SR, Hallak M, Carpenter RJ et.al. Evolution of hydranencephaly following intracerebral hemorrhage. Obstet Gynecol 1992;79:870-871.