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hemidiaphragm

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
hemidiaphragm /hemi·dia·phragm/ (-di´ah-fram) one half of the diaphragm.
hemidiaphragm
[-dī′əfram]
either the left or right functional half of the diaphragm. Although the diaphragm is a single anatomic unit, it is divided by the union of its central tendon and the pericardium into separate leaves, each with its own nerve supply, and each hemidiaphragm can function independently.

hemidiaphragm
see diaphragmatic crus.


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On the chest radiograph, Bochdalek hernias can present as a focal bulge in the hemidiaphragm or as a mass adjacent to the posteromedial aspect of either hemidiaphragm.
Nonetheless, common anteroposterior radiographic findings include (1) increased opacification, (2) mediastinal/tracheal shift toward the ipsilateral (affected) side, (3) hilar displacement, (4) elevation of the hemidiaphragm on the ipsilateral side, (5) compensatory hyperinflation of the contralateral lung, (6) crowded pulmonary vasculature, and (7) fissure displacement toward the affected region.
The x-ray revealed free air under the left hemidiaphragm suggesting a perforation.
 
 
 
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