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Updated: May 17, 2026
In Vivo, Percutaneous, Needle Based, Optical Coherence Tomography of Renal Masses
Published on: March 30, 2015
[Multi-slice computed tomography diagnosis of collecting duct carcinoma]
Qing-qiang Zhu1, Zhong-qiu Wang, Wen-rong Zhu
1Department of Radiology, People' s Hospital of Subei, Yangzhou 225001, China.
Objective:
To explore the diagnostic features of collecting duct carcinoma (CDC).
Methods:
A total of 7 CDC patients were retrospectively examined by multi-slice computed tomography (MSCT). The relevant diagnostic parameters were assessed.
Results:
All lesions were located in renal medulla. Among them, infiltrations extended to renal calyx (n = 3) and cortex (n = 5). There were indistinct boundaries (capsule sign) on enhanced phase (n = 6) and pre-capsule (n = 1). On non-enhanced CT, CDC attenuation was greater than normal renal cortex or medulla (43.8 ± 5.3 vs 37.6 ± 5.1 or 32.6 ± 4.1, P < 0.05). The degree of enhancement was less than normal renal cortex and medulla during all enhanced phases (P < 0.05 or 0.01). Excellent consistency existed between CT appearances of CDC and pathological characteristics.
Conclusion:
Dynamic contrast enhanced-CT can show distinct imaging features of CDC correlated with pathological characteristics so as to allow a better differential diagnosis.
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