eventration of the diaphragm

Q: Complete eventration of the hemidiaphragm usually happens on? - select one

A) left 

B) right

Answer: A

Diaphragmatic eventration is defined as a thinning of a portion or all of the diaphragmatic muscle by fibroelastic tissue.

For a not completely understood reason:

• Partial eventration mostly happens on the right hemidiaphragm 
• Complete eventration mostly happens on the left hemidiaphragm

Bilateral involvement is rare.

Clinically, it may cause tachypnea, palpitations, chest pain, chronic cough, recurrent pneumonia, dyspepsia, GERD, and epigastric pain.

#pulmonary

#radiology

References:

1. Groth SS, Andrade RS. Diaphragmatic eventration. Thorac Surg Clin. 2009 Nov;19(4):511-9. doi: 10.1016/j.thorsurg.2009.08.003. PMID: 20112634.

2. Mouroux J, Venissac N, Leo F, et al. Surgical treatment of diaphragmatic eventration using video-assisted thoracic surgery: a prospective study. Ann Thorac Surg 2005; 79:308.