In:
Japanese Journal of Radiology, Springer Science and Business Media LLC, Vol. 42, No. 4 ( 2024-04), p. 398-405
Abstract:
To retrospectively assess the time course of complications after image-guided small renal mass biopsy using initial follow-up imaging. Materials and methods A total of 190 masses (mean, 2.1 ± 0.70 cm; range, 0.6–3.8 cm) were assessed using initial computed tomography (43 non-enhanced and 141 enhanced) or magnetic resonance imaging (five non-enhanced and one enhanced) after biopsy. Initial follow-up imaging was classified into two groups (i.e., with or without hematoma) and various factors were compared. Results The masses were histologically diagnosed in all patients except one. Post-procedural complications included 129 Grade I hematomas, 1 Grade I hemothorax, 9 Grade II hematomas, and 1 Grade IIIa pneumothorax. Residual 28 Grade I and 6 Grade II hematomas and 8 new complications (6 small hematomas, 1 pseudoaneurysm, and 1 arteriovenous fistula) were observed on the initial follow-up imaging obtained at a median of 21 days (3–90 days) after the biopsy. On the initial follow-up imaging, the groups with and without hematoma differed significantly in the following factors: age ( P = 0.04), size ( P = 0.02), guided images ( P 〈 0.01), hematoma at the end of the procedure ( P 〈 0.01), and days after biopsy ( P 〈 0.01). Although three masses exhibited 〉 25% shrinkage, no significant change was observed in mass diameter on initial follow-up imaging (mean, 2.1 ± 0.71 cm; P = 0.90). Conclusion Initial follow-up imaging after a biopsy revealed improvements in most of the complications, a few new complications, and an unchanged mass diameter.
Type of Medium:
Online Resource
ISSN:
1867-1071
,
1867-108X
DOI:
10.1007/s11604-023-01509-9
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2024
detail.hit.zdb_id:
2488919-2
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