Giovagnorio Francesco, Drudi Francesco Maria, Fanelli Gloria, Flecca Dorina, Francioso Antonella
Dipartimento di Scienze Radiologiche, Università "La Sapienza", Rome 00161 Italy.
Ultrasound Med Biol. 2005 Aug;31(8):1017-22. doi: 10.1016/j.ultrasmedbio.2005.04.012.
The object of this paper was to investigate lipoplastic lymphadenopathy in superficial locations with ultrasound. We selected 110 patients with a total number of 247 nodes with a central hyperechoic area extended for more than one third of the transverse diameter. We considered gender, age, body mass index (BMI), and associated disease such as thyroid disorders and diabetes. For each lymph node, we measured the long:short axis ratio and the parenchyma:fat (P:F) ratio. Differences between mean P:F ratio in diabetic and nondiabetic patients were significant (p=0.045). Mean P:F ratio was negatively related to BMI (r=0.62, p=0.015) and age (r=0.54, p=0.024). All of the nodes examined with a mean P:F ratio <or= 1.2 (58) were found in patients older than 72 y and with a BMI higher than 27.8. Fatty involution may mimic a macrometastasis at palpation and may cause difficulties in US detection.
本文的目的是利用超声研究浅表部位的脂肪性淋巴结病。我们选取了110例患者，共有247个淋巴结，其中心高回声区在横径上延伸超过三分之一。我们考虑了性别、年龄、体重指数（BMI）以及相关疾病，如甲状腺疾病和糖尿病。对于每个淋巴结，我们测量了长短轴比值和实质：脂肪（P:F）比值。糖尿病患者和非糖尿病患者的平均P:F比值差异有统计学意义（p = 0.045）。平均P:F比值与BMI呈负相关（r = 0.62，p = 0.015），与年龄呈负相关（r = 0.54，p = 0.024）。所有平均P:F比值≤1.2的58个淋巴结均见于72岁以上且BMI高于27.8的患者。脂肪化生在触诊时可能会模拟大转移，并且可能会给超声检测带来困难。
