Why did the CT show an enlarged spleen and the ultrasound was normal?

CT shows splenomegaly color ultrasound and normal, because the principle of color ultrasound and CT examination is different, for different parts of the human body sensitivity is also different. CT examination is more sensitive to the spleen, which is the use of X-ray scanning of a certain thickness of a certain part of the human body level, in the examination of the skeletal system, central nervous system, head and neck, chest and abdomen on the value of the value of the larger. CT can detect the abnormal density of the officers, in the abdominal examination accuracy is higher than color ultrasound. Color ultrasound has greater value in reference to the cardiovascular system, thyroid, superficial soft tissues, breast, abdomen, and urinary tract. Splenomegaly may be caused by impaired spleen function or inflammation and infection, it is recommended to further improve the magnetic resonance as well as related laboratory tests to clarify the cause of the disease, and symptomatic treatment under the guidance of the doctor.