Diagnostic Potential of Multidetector Computed Tomography for Characterizing Small Renal Masses
Objectives. To assess the potential of CT for characterizing small renal tumors. Methods. 76 patients with <4 cm renal tumors underwent CT examination. The following parameters were assessed: presence of calcifications, densitometry on unenhanced and enhanced scans, washout percentage, urinary tr...
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| Language: | English |
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Wiley
2015-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2015/476750 |
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| author | Maria Elisabetta Mancini Annamaria Albergo Marco Moschetta Mariacristina Angelelli Arnaldo Scardapane Giuseppe Angelelli |
| author_facet | Maria Elisabetta Mancini Annamaria Albergo Marco Moschetta Mariacristina Angelelli Arnaldo Scardapane Giuseppe Angelelli |
| author_sort | Maria Elisabetta Mancini |
| collection | DOAJ |
| description | Objectives. To assess the potential of CT for characterizing small renal tumors. Methods. 76 patients with <4 cm renal tumors underwent CT examination. The following parameters were assessed: presence of calcifications, densitometry on unenhanced and enhanced scans, washout percentage, urinary tract infiltration, star-shaped scar, and paradoxical effect. Results. Calcifications were found in 7/56 (12.5%) carcinomas. Clear cell carcinomas were as follows: mean density 183.5 HU (arterial phase), 136 HU (portal phase), and 94 HU (delayed phase), washout 34.3%; chromophobe carcinomas were as follows: mean density 135 HU (arterial phase), 161 HU (portal phase), and 148 HU (delayed phase), washout 28%; papillary carcinomas were as follows: mean density 50.3 HU (arterial phase), 60 HU (portal phase), and 58.1 HU (delayed phase), washout 2.7%. In 2/56 (3.6%) cases urinary tract infiltration was found. Oncocytomas were as follows: mean density 126.5 HU (arterial phase), 147.5 HU (portal phase), and 115.5 HU (delayed phase), washout 28.6%. On unenhanced scans, angiomyolipomas were as follows: density values <30 HU in 12/12 (100%) of cases and on enhanced scans: mean density 78 HU (arterial phase), 128 HU (portal phase), and 80 HU (delayed phase), washout 50%. Conclusions. Intralesional calcifications and urinary tract infiltration are suggestive for malignancy, with the evidence of adipose tissue for angiomyolipomas and a modest increase in density with a reduced washout for papillary carcinomas. The intralesional density on enhanced scans, peak enhancement, and washout do not seem significant for differentiating clear cell, chromophobe carcinomas, angiomyolipomas, and oncocytomas. |
| format | Article |
| id | doaj-art-3ee3b7158f23466392f94e0b5aded749 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-3ee3b7158f23466392f94e0b5aded7492025-02-03T05:46:13ZengWileyThe Scientific World Journal2356-61401537-744X2015-01-01201510.1155/2015/476750476750Diagnostic Potential of Multidetector Computed Tomography for Characterizing Small Renal MassesMaria Elisabetta Mancini0Annamaria Albergo1Marco Moschetta2Mariacristina Angelelli3Arnaldo Scardapane4Giuseppe Angelelli5Interdisciplinary Department of Medicine (DIM), Section of Diagnostic Imaging, Aldo Moro University of Bari Medical School, Piazza Giulio Cesare 11, 70124 Bari, ItalyInterdisciplinary Department of Medicine (DIM), Section of Diagnostic Imaging, Aldo Moro University of Bari Medical School, Piazza Giulio Cesare 11, 70124 Bari, ItalyInterdisciplinary Department of Medicine (DIM), Section of Diagnostic Imaging, Aldo Moro University of Bari Medical School, Piazza Giulio Cesare 11, 70124 Bari, ItalySSFO, U.O. Hospital Pharmacy, University Hospital Policlinico of Bari, Piazza Giulio Cesare 11, 70124 Bari, ItalyInterdisciplinary Department of Medicine (DIM), Section of Diagnostic Imaging, Aldo Moro University of Bari Medical School, Piazza Giulio Cesare 11, 70124 Bari, ItalyInterdisciplinary Department of Medicine (DIM), Section of Diagnostic Imaging, Aldo Moro University of Bari Medical School, Piazza Giulio Cesare 11, 70124 Bari, ItalyObjectives. To assess the potential of CT for characterizing small renal tumors. Methods. 76 patients with <4 cm renal tumors underwent CT examination. The following parameters were assessed: presence of calcifications, densitometry on unenhanced and enhanced scans, washout percentage, urinary tract infiltration, star-shaped scar, and paradoxical effect. Results. Calcifications were found in 7/56 (12.5%) carcinomas. Clear cell carcinomas were as follows: mean density 183.5 HU (arterial phase), 136 HU (portal phase), and 94 HU (delayed phase), washout 34.3%; chromophobe carcinomas were as follows: mean density 135 HU (arterial phase), 161 HU (portal phase), and 148 HU (delayed phase), washout 28%; papillary carcinomas were as follows: mean density 50.3 HU (arterial phase), 60 HU (portal phase), and 58.1 HU (delayed phase), washout 2.7%. In 2/56 (3.6%) cases urinary tract infiltration was found. Oncocytomas were as follows: mean density 126.5 HU (arterial phase), 147.5 HU (portal phase), and 115.5 HU (delayed phase), washout 28.6%. On unenhanced scans, angiomyolipomas were as follows: density values <30 HU in 12/12 (100%) of cases and on enhanced scans: mean density 78 HU (arterial phase), 128 HU (portal phase), and 80 HU (delayed phase), washout 50%. Conclusions. Intralesional calcifications and urinary tract infiltration are suggestive for malignancy, with the evidence of adipose tissue for angiomyolipomas and a modest increase in density with a reduced washout for papillary carcinomas. The intralesional density on enhanced scans, peak enhancement, and washout do not seem significant for differentiating clear cell, chromophobe carcinomas, angiomyolipomas, and oncocytomas.http://dx.doi.org/10.1155/2015/476750 |
| spellingShingle | Maria Elisabetta Mancini Annamaria Albergo Marco Moschetta Mariacristina Angelelli Arnaldo Scardapane Giuseppe Angelelli Diagnostic Potential of Multidetector Computed Tomography for Characterizing Small Renal Masses The Scientific World Journal |
| title | Diagnostic Potential of Multidetector Computed Tomography for Characterizing Small Renal Masses |
| title_full | Diagnostic Potential of Multidetector Computed Tomography for Characterizing Small Renal Masses |
| title_fullStr | Diagnostic Potential of Multidetector Computed Tomography for Characterizing Small Renal Masses |
| title_full_unstemmed | Diagnostic Potential of Multidetector Computed Tomography for Characterizing Small Renal Masses |
| title_short | Diagnostic Potential of Multidetector Computed Tomography for Characterizing Small Renal Masses |
| title_sort | diagnostic potential of multidetector computed tomography for characterizing small renal masses |
| url | http://dx.doi.org/10.1155/2015/476750 |
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