Sidhu Harsumeet, Kamal Anubhav
Dr Ram Manohar Lohia Hospital and Post Graduate Institute of Medical Education, Radiodiagnosis,Baba Kharag Singh marg, New Delhi 110001, India.
Radiol Case Rep. 2020 Feb 26;15(5):515-518. doi: 10.1016/j.radcr.2020.01.033. eCollection 2020 May.
Renal leiomyoma is a rare benign mesenchymal tumor. It arises from the smooth muscle cells of the kidney and renal capsule is its most common location. Small tumor may be asymptomatic and usually appears as a well circumscribed peripherally located solid mass. Large tumor may manifest with pain, palpable flank mass or hematuria. Intersecting fascicles of spindle cells showing immunoreactivity to actin or desmin are characteristic histologic features. We present a case of giant renal leiomyoma in a 20-year-old female with chief complaints of abdominal discomfort and lump in her left side of abdomen. AP radiograph showed a large abdominopelvic soft tissue opacity. Contrast-enhanced computed tomography scan revealed a massive well circumscribed exophytic complex solid cystic mass of size 17 cm × 15 cm × 13 cm arising from upper pole of left kidney. The role of percutaneous biopsy is limited in such lesions and surgery is the only therapeutic option.
肾平滑肌瘤是一种罕见的良性间叶组织肿瘤。它起源于肾脏的平滑肌细胞，最常见于肾包膜。小肿瘤可能无症状，通常表现为边界清晰的外周实性肿块。大肿瘤可能表现为疼痛、可触及的侧腹肿块或血尿。梭形细胞呈交叉束状排列，对肌动蛋白或结蛋白呈免疫反应，这是其特征性的组织学表现。我们报告一例20岁女性巨大肾平滑肌瘤病例，主要症状为腹部不适和左侧腹部肿块。腹部前后位X线片显示腹盆腔有一大片软组织密度影。增强计算机断层扫描显示一个巨大的、边界清晰的、向外生长的复杂实性囊性肿块，大小为17 cm×15 cm×13 cm，起源于左肾上极。经皮活检在这类病变中的作用有限，手术是唯一的治疗选择。
