Rahman Nadeem Ur, Neeli Hemanth, Gupta Ayush, Sharma Jitendra, Minj Pratik
Radiology, All India Institute of Medical Sciences, Bhopal, Bhopal, IND.
Pathology, All India Institute of Medical Sciences, Bhopal, Bhopal, IND.
Cureus. 2024 Oct 6;16(10):e70927. doi: 10.7759/cureus.70927. eCollection 2024 Oct.
Renal cell carcinoma (RCC) is one of the most prevalent malignancies in adults. Accurate staging and assessment of tumor extent are critical for effective management. RCC often demonstrates a tendency for venous invasion, commonly extending into the renal vein and inferior vena cava. However, RCC extending into the gonadal veins is an uncommon manifestation. In this report, we present the imaging features of a 62-year-old woman presented with left flank pain. The ultrasound examination revealed a large hyperechoic mass in the left renal fossa, replacing almost the entire left kidney with the contiguous extension of the tumor into the left renal vein and ovarian vein. Color Doppler showed the presence of flow within the thrombus, confirming the presence of a malignant thrombus. Contrast-enhanced CT examination revealed a large heterogeneously enhancing mass in the left kidney with the contiguous extension of tumor thrombus in the left renal vein, IVC, and into the left ovarian vein. This report highlights how imaging techniques can be instrumental in detecting and characterizing rare but significant tumor extensions, which can have crucial prognostic implications for overall patient management.
肾细胞癌（RCC）是成人中最常见的恶性肿瘤之一。准确分期和评估肿瘤范围对于有效治疗至关重要。RCC常表现出静脉侵犯倾向，通常延伸至肾静脉和下腔静脉。然而，RCC延伸至性腺静脉是一种罕见表现。在本报告中，我们呈现了一名62岁左侧腰痛女性的影像学特征。超声检查显示左肾窝有一个大的高回声肿块，几乎取代了整个左肾，肿瘤连续延伸至左肾静脉和卵巢静脉。彩色多普勒显示血栓内有血流，证实存在恶性血栓。增强CT检查显示左肾有一个大的不均匀强化肿块，肿瘤血栓连续延伸至左肾静脉、下腔静脉并进入左卵巢静脉。本报告强调了影像学技术在检测和表征罕见但重要的肿瘤延伸方面的作用，这对患者的整体治疗具有关键的预后意义。
