Abstract
References
- Kirks DR. Practical pediatric imaging: diagnostic radiology of infants and children, 1998, 3rd edn. Lippincott-Raven, Philadelphia, pp 639-42.
- Rose RW, Ward BH. Spherical pneumonias in children simulating pulmonary and mediastinal masses. Radiology 1973; 106: 179-82.
- Kosut JS, Kamani NR, Jantausch BA. One-month-old infant with multilobar round pneumonias. Pediatr Infect Dis J 2006; 25: 95-7.
- Kim YW, Donnelly LF. Round pneumonia: imaging findings in a large series of children. Pediatric Radiology 2007; 37: 1235-40.
- Fretzayas A, Moustaki M, Alexopoulou E, Liapi O, Nicolaidou P, Priftis KN. Observations in febrile children with round air space opacities. Pediatrics Int 2010; 52: 444-6.
- Wagner AL, Szabunio M, Hazlett KS, Wagner SG. Radiologic manifestations of round pneumonia in adults. AJR.1998; 170: 723-6.
- McLennan MK, Radiology rounds. Round pneumonia. Can Fam Physician1998; 44: 757-9.
- Restrepo R, Palani R, Matapathi UM, Wu YY. Imaging of round pneumonia and mimics in children. Pediatr Radiol 2010; 40: 1931e40.
- Camargos PA, Ferreira CS. On round pneumonia in children. Pediatr Pulmonol 1995; 20: 194-5.
- Miyake H, Kaku A, Okino Y. Clinical manifestations and chest radiographic and CT findings of round pneumonia in adults. Nippon Igaku Hoshasen Gakkai Zasshi. 1999; 59: 448-51.
- Yikilmaz, A., Lee, E. Y. CT imaging of mass-like nonvascular pulmonary lesions in children. Pediatric Radiology 2007; 37: 1253-63.
- Hershey CO, Panaro V. Round pneumonia in adults. Arch Intern Med. 1988; 148: 1155-7.
- Camargo JJ, Camargo SM, Machuca TN, Perin FA. Round pneumonia: a rare condition mimicking bronchogenic carcinoma. Case report and review of the literature. Sao Paulo Med J. 2008; 126: 236-8.
- Liu YL, Wu PS, Tsai LP, Tsai WH. Pediatric round pneumonia. Pediatr Neonatol 2014; 55: 491-4.
- Joshi P, Vasishta A, Gupta M. Ultrasound of the pediatric chest. Br J Radiol 2019; 92: 20190058.
- Franquet T. Imaging of pneumonia: trends and algorithms. Eur Respir J 2001; 18: 196-208.
- Silver M, Kohler S. Evolution of a round pneumonia. West J Emerg Med 2013; 14: 643-4.
- Shady K, Siegel MJ, Glazer HS. CT of focal pulmonary masses in childhood. Radiographics 1992; 12: 505-14.
- Arkoudis NA, Pastroma A, Velonakis G, et al. Solitary round pulmonary lesions in the pediatric population: a pictorial review. Acta Radiol Open 2019; 31: 2058460119851998.
Abstract
Aim: Round pneumonia (RP) is a type of pneumonia that appears round on imaging studies and usually occurs in children. Although round pneumonia is a well-known clinical condition, few publications available in the literature describing the imaging findings and features of round pneumonia. The purpose of the review was to evaluate the chest radiographs, chest ultrasonography and CT findings associated findings of round pneumonia as compared to the published literature.
Material and Method: 65 children who were diagnosed with round pneumonia in our hospital between December 2010 and July 2020 were included in our study. Initial chest radiographs and CT scans were evaluated for lesion parameters: number, margin, opacity, size, location, and hilar LAP and air bronchogram accompaniment. Follow-up chest radiographs were evaluated for temporal variation (resolution or progression to lobar pneumonia). The findings of the patients who underwent chest ultrasonography were recorded.
Results: The mean age of the 65 children with round pneumonia included was 6.2 years and their ages ranged from 9 months to 16 years. Evaluation of chest radiographs showed one lesion in each of 63 children (96%, 63/65) and two lesions in two children (4%, 2/65). Lesion margins were sharp in 84% (55/65) and the mean diameter of lesions was 2,5 cm with a range of 1.5–9.5 cm. On the radiograph, the opacity of round pneumonia was low (60%, 39/65) and hilar lymphadenopathy was detected in 1 out of 5 patients (20%, 13/65). The location of the lesion tended to be posterior (51%, 33/65) and upper lobe (54%, 35/65). On chest ultrasonography, consalidation was seen in 8 patients, consalidation and pleural effusion were seen in 3 patients. CT images were available in 11 (17%) children. Pleural thickening or satellite lesions were not observed in any of the patients on tomography. Follow-up radiographs tended to show resolution in 95% (62/65) and progression to lobar pneumonia in 4.6% (3/65). 1 patient progressed to lobar pneumonia and died. 2 patients developed cavitary pneumonia.
Conclusion: Round pneumonia is a benign type of pneumonia that is mostly seen in children due to its physiopathology. Most patients with RP recover clinically and radiologically after antibiotic therapy. Although there are many diseases in the differential diagnosis, knowing the radiological features facilitates the diagnosis and prevents unnecessary diagnostic and imaging studies.
References
- Kirks DR. Practical pediatric imaging: diagnostic radiology of infants and children, 1998, 3rd edn. Lippincott-Raven, Philadelphia, pp 639-42.
- Rose RW, Ward BH. Spherical pneumonias in children simulating pulmonary and mediastinal masses. Radiology 1973; 106: 179-82.
- Kosut JS, Kamani NR, Jantausch BA. One-month-old infant with multilobar round pneumonias. Pediatr Infect Dis J 2006; 25: 95-7.
- Kim YW, Donnelly LF. Round pneumonia: imaging findings in a large series of children. Pediatric Radiology 2007; 37: 1235-40.
- Fretzayas A, Moustaki M, Alexopoulou E, Liapi O, Nicolaidou P, Priftis KN. Observations in febrile children with round air space opacities. Pediatrics Int 2010; 52: 444-6.
- Wagner AL, Szabunio M, Hazlett KS, Wagner SG. Radiologic manifestations of round pneumonia in adults. AJR.1998; 170: 723-6.
- McLennan MK, Radiology rounds. Round pneumonia. Can Fam Physician1998; 44: 757-9.
- Restrepo R, Palani R, Matapathi UM, Wu YY. Imaging of round pneumonia and mimics in children. Pediatr Radiol 2010; 40: 1931e40.
- Camargos PA, Ferreira CS. On round pneumonia in children. Pediatr Pulmonol 1995; 20: 194-5.
- Miyake H, Kaku A, Okino Y. Clinical manifestations and chest radiographic and CT findings of round pneumonia in adults. Nippon Igaku Hoshasen Gakkai Zasshi. 1999; 59: 448-51.
- Yikilmaz, A., Lee, E. Y. CT imaging of mass-like nonvascular pulmonary lesions in children. Pediatric Radiology 2007; 37: 1253-63.
- Hershey CO, Panaro V. Round pneumonia in adults. Arch Intern Med. 1988; 148: 1155-7.
- Camargo JJ, Camargo SM, Machuca TN, Perin FA. Round pneumonia: a rare condition mimicking bronchogenic carcinoma. Case report and review of the literature. Sao Paulo Med J. 2008; 126: 236-8.
- Liu YL, Wu PS, Tsai LP, Tsai WH. Pediatric round pneumonia. Pediatr Neonatol 2014; 55: 491-4.
- Joshi P, Vasishta A, Gupta M. Ultrasound of the pediatric chest. Br J Radiol 2019; 92: 20190058.
- Franquet T. Imaging of pneumonia: trends and algorithms. Eur Respir J 2001; 18: 196-208.
- Silver M, Kohler S. Evolution of a round pneumonia. West J Emerg Med 2013; 14: 643-4.
- Shady K, Siegel MJ, Glazer HS. CT of focal pulmonary masses in childhood. Radiographics 1992; 12: 505-14.
- Arkoudis NA, Pastroma A, Velonakis G, et al. Solitary round pulmonary lesions in the pediatric population: a pictorial review. Acta Radiol Open 2019; 31: 2058460119851998.
Details
| Primary Language | English |
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| Subjects | Health Care Administration |
| Journal Section | Original Article |
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| Publication Date | March 15, 2022 |
| Published in Issue | Year 2022 Volume: 5 Issue: 2 |
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