Question:

What is the estimated prevalence of thoracolithiasis?
1. 1-5%
2. Nearly all patients with lung disease have pleural stones
3. 5-10%
4. 0.1-1%
5. < 0.1%





Answer:

The correct answer for the question "What is the estimated prevalence of thoracolithiasis?" is:

5. < 0.1%



Explanation
["Kinoshita et al. estimated a prevalence of 0.086% after reviewing 12,835 individuals who received at least two CT scans [1]."]



From the manuscript:
Bilateral Mobile Thoracolithiasis
Radiology Case. 2014 Sep; 8(9):16-20


This article belongs to the Chest section.




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From the manuscript

Bilateral Mobile Thoracolithiasis

Free full text article: Bilateral Mobile Thoracolithiasis

Abstract
Thoracolithiasis is the presence of one or more freely mobile pleural stones (with or without calcification) in the pleural space. They occur with a reported incidence of less than 0.1% and are benign and do not require intervention. Historically, they have led to unnecessary interventions - something unlikely in the era of multidetector computed tomography (CT). Thoracolithiasis should be included in the differential diagnosis of a single or multiple, mobile peripheral pulmonary nodules. Here, we review the imaging characteristics of a rare case of bilateral mobile thoracolithiasis.






References



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