Gaeta Michele, Minutoli Fabio, Mileto Achille, Racchiusa Sergio, Donato Rocco, Bottari Antonio, Blandino Alfredo
Department of Radiological Sciences, Policlinico "G.Martino'', Messina, Italy.
Abdom Imaging. 2010 Dec;35(6):737-41. doi: 10.1007/s00261-010-9607-7.
The purpose of this study was to describe the MR imaging findings of Nuck canal endometriosis (NCE).
In a 10-year period, 486 out of 612 patients, with laparoscopically and/or surgically proven diagnosis of pelvic endometriosis, underwent MR imaging examination. The examinations were reviewed by two urogenital experienced radiologists working in consensus. Data analysis included: lesions location, size, morphological and signal intensity pattern, involvement of the adjacent muscles, and tendons.
In 372 out of 486 patients an MRI diagnosis of endometriosis was made. NCE was found in eight patients. All the lesions were located on the right side. The mean size of the lesions was 2.5 cm (range 1.5-4.5 cm). Two patterns of NCE were found: type 1, prevalently cystic (n = 2); and type 2, prevalently solid with small scattered cysts within lesion (n = 6). In all the patients, hemorrhagic hyperintense cysts could be seen on T1-weighted images. In four patients, the lesions involved the inguinal canal, and in another four patients, the lesions were only outside the inguinal canal. Involvement of the abdominis rectus muscle was seen in two patients, and of the adductor common tendon in two patients.
MR imaging permits the diagnosis of NCE as well as the evaluation of exact extension of the disease.
本研究旨在描述Nuck管子宫内膜异位症（NCE）的磁共振成像（MR）表现。
在10年期间，612例经腹腔镜和/或手术证实诊断为盆腔子宫内膜异位症的患者中，486例接受了MR成像检查。由两位泌尿生殖系统经验丰富的放射科医生共同对检查结果进行评估。数据分析包括：病变位置、大小、形态和信号强度模式、相邻肌肉和肌腱的受累情况。
486例患者中，372例经MRI诊断为子宫内膜异位症。8例患者发现有NCE。所有病变均位于右侧。病变的平均大小为2.5 cm（范围1.5 - 4.5 cm）。发现NCE有两种模式：1型，以囊性为主（n = 2）；2型，以实性为主，病变内有小的散在囊肿（n = 6）。所有患者在T1加权图像上均可见出血性高信号囊肿。4例患者的病变累及腹股沟管，另外4例患者的病变仅位于腹股沟管外。2例患者的病变累及腹直肌，2例患者的病变累及内收肌腱。
MR成像有助于诊断NCE并评估疾病的确切范围。
