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eventration of diaphragm
Etiology:
- congenital anomal
Pathology:
- incomplete muscularization of the diaphragm with a thin membranous sheet replacing normal diaphragmatic muscle
- the region stretches & on inspiration does not contract normally
- frequently occurs in the anteromedial portion of the right hemidiaphragm [1]
- complete eventration almost invariably occurs on the left side; it is rare on the right [2]
Radiology:
- elevation of the affected portion of the diaphragm is usually seen as a smooth hump on the normal contour of the hemidiaphragm
Differential diagnosis:
- diaphragmatic paralysis
General
muscular disease; myopathy
congenital
anomaly
References
- Mudgal P et al
Diaphragmatic eventration
http://radiopaedia.org/articles/diaphragmatic-eventration
- Kansal AP et al
Right-sided diaphragmatic eventration: A rare entity.
Lung India. 2009 Apr-Jun; 26(2): 48-50
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2860415/