Question:

Which of the following statements is true?
1. Right Partial Anomalous Pulmonary Venous Connection is the most common type.
2. Left Partial Anomalous Pulmonary Venous Connection is the most common type.
3. Partial Anomalous Pulmonary Venous Connection is a common entity.
4. Partial Anomalous Pulmonary Venous Connection is commonly associated with an intact atrial septum.
5. Partial Anomalous Pulmonary Venous Connection has a higher incidence in males.





Answer:

The correct answer for the question "Which of the following statements is true?" is:

1. Right Partial Anomalous Pulmonary Venous Connection is the most common type.



Explanation
A) Right Partial Anomalous Pulmonary Venous Connection is the most common type. [Of these, only approximately 10% are left sided (4).]

B) Left Partial Anomalous Pulmonary Venous Connection is more rare than the right. [Of these, only approximately 10% are left sided (4).]

C) Partial Anomalous Pulmonary Venous Connection is rare. [The reported incidence is between 0.4 - 0.7% (1).]

D) An intact atrial septum is rare. [Partial Anomalous Pulmonary Venous Connection most commonly presents with an atrial septal defect (ASD), reportedly in 80-90% of cases (7).]

E) Partial Anomalous Pulmonary Venous Connection has no definitive gender predilection. [No definitive data is available to establish whether PAPVC is more common in males or females.]



From the manuscript:
Rare Case of Left Upper Lobe Partial Anomalous Pulmonary Venous Connection
Radiology Case. 2013 Jun; 7(6):9-14


This article belongs to the Chest section.




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From the manuscript

Rare Case of Left Upper Lobe Partial Anomalous Pulmonary Venous Connection

Free full text article: Rare Case of Left Upper Lobe Partial Anomalous Pulmonary Venous Connection

Abstract
Partial anomalous pulmonary venous connection is a rare abnormality with failure of connection between the initial draining system of the lungs and the common pulmonary vein. Right sided anomalous return is the most common form of anomalous connection, with left sided anomalous return uncommon. Presented is a case of left upper lobe partial anomalous pulmonary venous connection that was diagnosed incidentally on computed tomography (CT). This is an example of the utility of CT, in particular coronal, sagittal and 3-d reconstructions, in assessment of cardiopulmonary anatomy.






References



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2. Adler SC, Silverman JF. Anomalous venous drainage of the left upper lobe. Radiology 1973;108:563-565
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6. Zylak CJ, Eyler WR, Spizarny DL, Stone CH. Developmental lung anomalies in the adult: radiologic-pathologic correlation. Radiographics 2002;22:S25-43
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