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  • Title: [Clinical significance of lymphadenopathy in the upper abdomen; ultrasound demonstration].
    Author: Maeda T, Hori Y, Yamaguchi N, Mori H, Hata H, Yamada Y, Tanaka R, Kiyosue H, Takaki H.
    Journal: Nihon Igaku Hoshasen Gakkai Zasshi; 1995 Mar; 55(4):228-32. PubMed ID: 7746723.
    Abstract:
    Little attention has been paid to the ultrasound differentiation of benign abdominal lymphadenopathy from the malignant type. We reviewed 133 ultrasound examinations of 116 patients with lymphadenopathy seen over the upper abdomen and high retroperitoneum to clarify the differences in ultrasound findings of enlarged lymph nodes caused by benign and malignant abdominal diseases. The location, number, internal texture, size, length/thickness ratio of the lymph nodes, and relation with hepatitis virus infection were evaluated. Among 75 patients with benign diseases, 63 patients showed liver dysfunction and 42/65 (65%) showed positive hepatitis C virus antibody (HCV-Ab). Enlarged lymph nodes were seen over the common hepatic artery or hepatoduodenal ligament in 84%. Most patients had fewer than 4 enlarged nodes, and 46 patients had a single enlarged node. The length/thickness ratio of nodules was more than 2.5 in 63%. In 41 patients with malignant diseases, enlarged lymph nodes tended to be more widespread in location, larger in number, and smaller in length/thickness ratio than those of benign diseases. Lymphadenopathy over the common hepatic artery or hepatoduodenal ligament may suggest the presence of chronic active hepatitis, especially relating to HCV infection, even though hepatic sonotexture is normal on ultrasound examination.
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