Paramomastia is a congenital abnormality that can occur in both men and women, most often in the bilateral armpits and unilaterally on the right side. In addition to affecting the aesthetic appearance, the breast tissue contained in the parametrium also has a chance of developing malignant tumors of the breast. Lymph nodes are part of the body’s immune system and are named according to their location, such as the axillary lymph nodes. The lymph nodes can be distinguished from the axillary lymph nodes by palpation and ultrasonography.
I. Differentiation by palpation
1.Parametrial breast
(1) Localized elevation of the axilla, some patients may have parametrial nipples.
(2) Similar to palpation of the breast, a tougher, smooth-surfaced gland can be palpated.
(3) Mostly no obvious pressure pain.
(4) If mammary hyperplasia is present in the parametrium, periodic pain may occur.
2. Lymph nodes
(1) Not palpable under normal conditions.
(2) A single isolated smooth lymph node may be palpable in the pathological state and may be accompanied by pressure pain.
(3) Acute inflammation may cause enlargement.
Identification by ultrasound examination
1.Parametrial breast
(1) Blood flow signal can be seen in the gland-like tissue of the parametrium.
(2) The echogenicity is the same as that of normal breast tissue.
(3) The parametrial tissue has no envelope and is poorly defined from the surrounding tissue.
(2) Lymph nodes: low density shadow changes, often without obvious blood flow signal.
Susceptible to diseases
1. Parametrial breast: prone to mammary hyperplasia, and complete parametrial breast has a higher chance of hyperplastic inflammation than normal breast, which may develop into breast cancer.
2.Lymph nodes: If unexplained enlargement of axillary lymph nodes occurs and the shape is suspicious under ultrasound, it is recommended to have surgery or puncture biopsy as soon as possible to clarify whether there is a possibility of axillary lymph node cancer.