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Figure 3.14. Transillumination of the lateral view of the head of another infant with hydranencephaly. Note the large head size compared with that of the face. Typically infants with hydranencephaly present with heads that are macro-cephalic. Infants with hydrocephalus will also have transillumination of the skull, but this would become readily apparent only if there was massive enlargement of the head.

Figure 3.14. Transillumination of the lateral view of the head of another infant with hydranencephaly. Note the large head size compared with that of the face. Typically infants with hydranencephaly present with heads that are macro-cephalic. Infants with hydrocephalus will also have transillumination of the skull, but this would become readily apparent only if there was massive enlargement of the head.

Figure 3.15. Lateral and anterior-posterior views of the head of an infant with hydranencephaly. Note the large head, some prominence of scalp veins, the "jack-o-lantern" appearance of the eyes, and the total lack of brain tissue.

Figure 3.16. Clinical appearance of an infant with hydranencephaly. Note the prominent scalp veins and brow. There is macrocephaly and a large open anterior fontanelle associated with poor mineralization of the skull.

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Figure 3.16. Clinical appearance of an infant with hydranencephaly. Note the prominent scalp veins and brow. There is macrocephaly and a large open anterior fontanelle associated with poor mineralization of the skull.

Figure 3.17. Transillumination of the head of the same infant with hydranencephaly. Note the "jack-o-lantern" appearance of the eyes indicating the lack of neural tissue behind the globe.

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