From the Departments of Radiology.
Pathology.
J Comput Assist Tomogr. 2021;45(3):447-451. doi: 10.1097/RCT.0000000000001146.
The purpose of this study was to evaluate magnetic resonance (MR) imaging findings of poroma and porocarcinoma.
Six patients (3 male, 3 female; age range, 40-84 years; mean age, 61 years) with histologically confirmed skin appendage tumors with apocrine and eccrine differentiation (2 poromas and 4 porocarcinomas) were enrolled. All patients underwent preoperative MR imaging and the MR images were retrospectively reviewed.
The configurations were classified as pedunculated solid in 5 lesions and subcutaneous cystic with mural nodules in 1. Well-demarcated deep tumor margins and smooth skin surfaces were observed in all 6 lesions, and peritumoral fat stranding was observed in 2. In all 5 pedunculated solid lesions, T2-hyperintense foci, T1 hyperintensity, and homogeneous solid components were observed within the lesions.
Poroma and porocarcinoma usually exhibited pedunculated solid homogeneous lesion. Intratumoral T2-hyperintense foci and T1 hyperintensity were observed in pedunculated solid lesions.
本研究旨在评估汗管瘤和汗管癌的磁共振成像（MR）表现。
本研究纳入了 6 名经组织学证实具有大汗腺和小汗腺分化的皮肤附属器肿瘤患者（2 例汗管瘤和 4 例汗管癌），其中男 3 例，女 3 例；年龄 40-84 岁，平均年龄 61 岁。所有患者均行术前 MR 成像，对 MR 图像进行回顾性分析。
5 例为带蒂实性，1 例为皮下囊性伴壁结节。6 例肿瘤边界清楚，表面皮肤光滑，其中 2 例可见肿瘤周围脂肪条索影。在 5 例带蒂实性病变中，均可见 T2 高信号灶、T1 高信号和均匀实性成分。
汗管瘤和汗管癌通常表现为带蒂实性均匀病变。带蒂实性病变中可见瘤内 T2 高信号灶和 T1 高信号。
