Lee Joo Yeon, Kang Byeong Seong, Shim Hyun Seok, Song In Hye, Kim Misung, Lee Sang Hoon, Chung Hye Won, Lee Min Hee, Shin Myung Jin
Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
Department of Radiology, University of Ulsan College of Medicine, Ulsan University Hospital, Ulsan, Korea.
J Ultrasound Med. 2018 Aug;37(8):1993-2001. doi: 10.1002/jum.14552. Epub 2018 Feb 1.
The purpose of this study was to evaluate the imaging features of clear cell hidradenoma on ultrasonography (US), computed tomography (CT), and magnetic resonance imaging (MRI).
The radiologic and pathologic databases at 2 medical institutions were searched retrospectively from 2004 to 2016 to identify patients with a diagnosis of clear cell hidradenoma. Ultrasonographic, CT, and MRI features were described, and pathologic specimens were reviewed.
There were 5 female and 4 male patients. The mean patient age was 48.9 years (range, 28-70 years). Five patients underwent only US; 2 patients underwent only CT; 1 patient underwent both US and CT; and 1 patient underwent US and MRI. Most of the tumors were located primarily in the subcutaneous fat layer. The mean tumor size was 18.4 mm. On US, 6 masses had a heterogeneous echo texture, including an anechoic portion with protruding echogenic portions. Two masses had multiple septa in the anechoic portion. On color Doppler US, blood flow was both central and peripheral in 5 patients. All 3 cases seen on CT presented as a low-attenuation mass with an enhanced solid internal nodule. On MRI, the mass showed heterogeneous signal intensity on T2-weighted images and enhancement of the peripheral wall and internal solid component on contrast-enhanced T1-weighted images.
Clear cell hidradenoma is usually located in the subcutaneous fat layer, has a well-defined margin, appears as a cystic mass with an internal solid nodule, and occasionally has multiple septa on US, CT, and MRI.
本研究旨在评估透明细胞汗腺瘤的超声（US）、计算机断层扫描（CT）和磁共振成像（MRI）的影像特征。
回顾性检索2家医疗机构2004年至2016年的放射学和病理学数据库，以确定诊断为透明细胞汗腺瘤的患者。描述超声、CT和MRI特征，并复习病理标本。
有5例女性和4例男性患者。患者平均年龄为48.9岁（范围28 - 70岁）。5例患者仅接受了超声检查；2例患者仅接受了CT检查；1例患者接受了超声和CT检查；1例患者接受了超声和MRI检查。大多数肿瘤主要位于皮下脂肪层。肿瘤平均大小为18.4毫米。在超声检查中，6个肿块具有不均匀回声结构，包括一个无回声部分伴有突出的回声部分。2个肿块在无回声部分有多个分隔。在彩色多普勒超声检查中，5例患者的血流既有中央型也有周边型。CT检查所见的3例均表现为低密度肿块，内部实性结节有强化。在MRI上，肿块在T2加权图像上表现为不均匀信号强度，在对比增强T1加权图像上周边壁和内部实性成分有强化。
透明细胞汗腺瘤通常位于皮下脂肪层，边界清晰，表现为带有内部实性结节的囊性肿块，在超声、CT和MRI上偶尔有多个分隔。
