1. The sonographic appearance of the normal breast gland layer is: ()
A. Triangular shape, tip toward the nipple, base on the chest wall, linear, spot-like, relatively uniform Quality echo
B. Triangular shape, tip facing the chest wall, base pointing toward the nipple, homogeneous echo, smooth and neat border
C. Oval, enhanced echo, smooth and neat border
D. Long strip, enhanced echo, heterogeneous
2. The peak age of breast hyperplasia is: ()
A. 25 to 30 years old
B. 30 to 50 years old
C. 55 to 60 years old
D. Over 65 years old
3. Typical breast fibroadenoma The sonogram performance is: ()
A. Hypoechoic mass with clear boundaries, regular shape, uneven echo, and mostly enhanced rear echo
B. Hypoechoic mass, The boundary is unclear, the shape is regular, the echo is uniform, and the echo at the rear is much enhanced
C. The hypoechoic mass, the boundary is clear, the shape is regular, the echo is uniform, and the echo behind is unchanged
D. A hypoechoic mass with clear boundaries, regular shape, uniform echo, and mostly enhanced echo at the rear
4. The diameter of breast fibroma is generally: ()
A.lt; 1cm
B.lt; 2cm
C.lt; 3cm
D.lt; 4cm
5. Xiao Wang, female, 22 Years old, bilateral breast swelling and pain are unbearable. The pain worsens before menstruation and I dare not touch it. It is slightly relieved after menstruation. Ultrasound shows that the breast structure is disordered and the echo is uneven. The most likely diagnosis is: ()
A. Mastitis
B. Breast cancer
C. Breast cystic hyperplasia
D. Breast cyst
6. The incorrect statement about hepatic echinococcosis is: ()
A. Single cystic type with a snow sign at the bottom of the cyst
B. Multiple infections are common and the growth is slow
p>C. Also called hepatic hydatid disease
D. No enhancement in contrast-enhanced ultrasound
Reference answers and analysis
1. Reference answer A. Analysis: Examine the basic echo characteristics of the breast gland layer. The sonogram of the normal breast gland layer is triangular in shape, with the tip facing the nipple and the base on the chest wall. It is linear and spot-like, with relatively homogeneous echoes. Therefore, choose A for this question.
2. Refer to answer B. Analysis: Examine the age at which breast hyperplasia occurs. Breast hyperplasia is a common disease of the female breast. The peak age of onset is between 30 and 50 years old, and the disease can occur unilaterally or bilaterally. Therefore, choose B for this question.
3. Refer to answer D. Analysis: Examine the sonographic manifestations of breast fibroma. Two-dimensional ultrasound: (1) The mass is round, oval or lobulated. (2) The border is clear and there is a complete envelope. (3) The internal echo is uniform and hypoechoic compared with the breast parenchyma. There is no posterior attenuation and the posterior echo is often enhanced. (4) The mass may have lateral sound shadow. (5) It has no adhesion to surrounding tissues and can be slightly compressed when pressurized. Doppler ultrasound: Smaller fibroadenomas often have no colored blood flow signals; larger tumors can have colored blood flow signals around and inside them. So choose D.
4. Refer to answer C. Analysis: Examine the characteristics of breast fibroma. Breast fibroma is the most common benign tumor of the female breast. It is more common in young women and manifests as a painless, solid, solitary nodule with clear borders that can be moved by touch. The tumor grows slowly and is usually 1 to 3 cm in size. So choose C.
5. Refer to answer C.
Analysis: According to the symptoms of the above patient, there is swelling and pain in both breasts before menstruation, which is slightly relieved after menstruation. Combined with the ultrasound performance, it is more consistent with the performance of cystic breast hyperplasia, so choose C.
6. Refer to answer B. Analysis: Hepatic echinococcosis is mostly solitary, and the course of the disease is progressive. In the unicystic type, small point-like reflections may accumulate at the bottom of the cyst, floating with changes in body position, forming the snow sign; in the multicystic type, a large cyst contains multiple small cysts, and the small cysts contain smaller cysts. Formation of cyst-within-a-cyst sign.