乳腺外佩吉特病的超声特征

目的 探讨乳腺外佩吉特病（EMPD）的超声声像图特征。方法 回顾性分析经病理证实的41例EMPD患者的超声资料及声像图特征。结果 41例中，病灶位于外阴33例，腹股沟2例，肛周2例，上胸壁1例，下腹壁1例，额部1例，拇指1例。超声检出病变36例，根据形态可分为弥漫型和肿块型。弥漫型31例，均表现为形态不规则、边缘不清的弥漫性病变，超声显示皮肤增厚30例，无增厚1例；病灶呈低回声8例，稍低回声23例；CDFI血流分级0级2例，1级6例，2级11例，3级12例；腹股沟淋巴结异常9例。肿块型5例，均表现为边缘清晰的肿块样病变，超声显示皮肤增厚1例，无增厚4例；肿块内部呈低回声3例，稍低回声2例；形态规则4例，不规则1例；CDFI血流分级0级1例，1级2例，2级1例，3级1例；腹股沟淋巴结异常3例。5例（5/41，12.20%）超声未见明显异常。结论 超声可敏感识别EMPD病变区回声异常及血流异常，诊断EMPD需结合临床表现。

Ultrasonographic characteristics of extramammary Paget's disease

Objective To explore the ultrasonographic features of extramammary Paget''s disease (EMPD). Methods The ultrasonographic data of 41 patients with EMPD confirmed by pathology were retrospectively analyzed, and the ultrasonographic features of EMPD were observed. Results Among the 41 patients of EMPD, lesions located at vulva in 33 cases, at groin in 2, at perianal in 2 cases, while at upper chest wall, lower abdominal wall, forehead and thumb in 1 case, respectively. Among 36 patients with ultrasonographic found lesions, EMPD could be divided into diffuse type and mass type according to the morphology of the lesions. There were 31 diffuse type lesions with irregular shape and unclear margin. Ultrasound showed skin thickening in 30 lesions and no thickening in 1, hypoechoic echo in 8 and slightly hypoechoic echo in 23, while CDFI blood flow demonstrated grade 0 in 2, grade 1 in 6, grade 2 in 11, grade 3 in 12. Inguinal abnormal lymph nodes were found in 9 patients with diffuse type EMPD. There were 5 patients of mass type EMPD with clear margins, among them ultrasound showed 1 patient with skin thickening and 4 without thickening, and hypoechoic lesions were found in 3 patients and slightly hypoechoic lesions in 2 patients. The shape of 4 lesions were regular and 1 was irregular, 1 lesion with CDFI blood flow of grade 0, 2 of grade 1, 1 of grade 2, 1 of grade 3. The abnormal inguinal lymph nodes were found in 3 patients. Ultrasonography showed no obvious abnormality in the other 5 patients (5/41, 12.20%). Conclusion Ultrasound could sensitively identify abnormal echo and blood flow in EMPD lesions. Clinical manifestations should be considered in ultrasound diagnosis of EMPD.