Department of Radiodiagnosis, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
Department of Urology and Renal Transplantation, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
BMJ Case Rep. 2020 Jul 16;13(7):e235224. doi: 10.1136/bcr-2020-235224.
Extramedullary haematopoiesis (EMH) is a physiological process of formation of blood cells outside the bone marrow in response to insufficient production or excessive destruction of blood cells. Most common sites of EMH are liver, spleen, lymph nodes, kidney and paraspinal regions. In this report, we have described a rare case of focal EMH which presented as a mass adjacent to the renal allograft. Imaging characteristics favoured a benign aetiology with MRI signals suggesting the presence of blood and fatty components. The final diagnosis of EMH was made by aspiration cytology and an unnecessary surgery was thus avoided.
髓外造血 (EMH) 是一种生理过程，即在骨髓外形成血细胞，以应对血细胞生成不足或过度破坏。EMH 最常见的部位是肝脏、脾脏、淋巴结、肾脏和脊柱旁区域。在本报告中，我们描述了一例罕见的局灶性 EMH 病例，表现为紧邻肾移植的肿块。影像学特征支持良性病因，MRI 信号提示存在血液和脂肪成分。最终通过细针抽吸细胞学诊断为 EMH，从而避免了不必要的手术。
