Noonan Syndrome Infant

Noonan Syndrome

Figure 2.73. Radiograph of the skulls of the same twins as in Figure 2.72 showing the marked lack of mineralization.

2.74

Figure 2.73. Radiograph of the skulls of the same twins as in Figure 2.72 showing the marked lack of mineralization.

2.75

Noonan SyndromeNoonan Syndrome Infant

Figure 2.74. Short-limbed dwarfism in an infant with the Saldino-Noonan syndrome. This infant demonstrates the marked narrowing of the thorax with a large abdomen. The large abdomen is commonly seen in infants with a narrow thorax because the subcostal space is too small to accommodate the liver. The abdomen, per se, is normal. In this form of short-limbed dwarfism there is a narrow chest, due to short ribs, and polydactyly. (Richardson MM, Beaudet Al, Wanger ML, Malinis Rosenberg HS, Lucci JL: Prenatal diagnosis of recurrence of Saldino-Noonan dwarfism. J. Pediatr 91: 467-471. Reprinted with permission from Mosby Year Book, Inc., St. Louis, MO.)

Figure 2.75. Body radiograph of an infant with Saldino-Noonan syndrome. In this form of short-limbed dwarfism, hydrops is usually present, the chest is extremely narrow due to the very short horizontal ribs, and the long bones are extremely short and jagged.

Noonan Syndrome

Figure 2.76. Anteroposterior and lateral radiograph of another infant with Saldino-Noonan syndrome. Note the horizontal, very short ribs, the high clavicles and the extremely short, jagged long bones.

Noonan Syndrome
Figure 2.77. Skull radiograph, anteroposterior and lateral, showing the poor mineralization. Note the high clavicles.

Figure 2.76. Anteroposterior and lateral radiograph of another infant with Saldino-Noonan syndrome. Note the horizontal, very short ribs, the high clavicles and the extremely short, jagged long bones.

Figure 2.78. A close-up of the right upper extremity showing the extremely short, jagged long bones and poor development of the metacarpals and phalanges. Note the poly-dactyly.

Figure 2.78. A close-up of the right upper extremity showing the extremely short, jagged long bones and poor development of the metacarpals and phalanges. Note the poly-dactyly.

Noonan Facies
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Responses

  • Essi
    What is noonan syndrome?
    3 years ago

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