
Are there any arteries in your breast?
The internal thoracic artery is the dominant artery supplying the breast, and its branches supply the medial and central breast parenchyma. The lateral thoracic artery supplies the superolateral breast parenchyma.Nov 8, 2011
Are there veins in the breast?
Veins are a critical component of your body, but in most cases, people don't like the look of them. One of the most common body parts to develop visible veins over time are the breasts. Most women are unhappy when this occurs because it impacts the aesthetic of the area.Jul 9, 2021
What vein drains the breast?
Internal thoracic veinPosterior surface of sternum and costal cartilages, showing Transversus thoracis. (Internal mammary vessels labeled at center top.)DetailsDrains fromsuperior epigastric veinDrains tobrachiocephalic vein8 more rows
What type of innervation does the breast have?
The breast was supplied mainly by branches of the upper intercostal nerves, with a small contribution from the supraclavicular nerves distributed to the upper part. From the lateral side, the lateral cutaneous branches of the second to the sixth intercostal nerves are involved (Fig. 2).
What does blue veins on my breast mean?
Blue veins on your breasts indicate that valves within your breast veins are likely malfunctioning. They may also indicate swelling in the breasts, an increase in blood volume or thinning of your skin. Regardless of the circumstances, treatment may be available for visible veins breasts.Jun 11, 2020
What causes spider veins on breasts?
Chest. Spider veins that form on the chest are particularly concerning for women since they frequently grace the breasts. Like other spider veins, breast veins can be the result of genetics. They can also form due to strenuous exercise, rapid weight loss or even a breast augmentation procedure.
How is the breast supplied with arterial blood?
The blood supply to the breast skin depends on the subdermal plexus, which is in communication with deeper underlying vessels supplying the breast parenchyma. The blood supply is derived from the following: The internal mammary perforators (most notably the second to fifth perforators) The thoracoacromial artery.Jun 29, 2016
How does lymph drain from the breast?
Most (75-90%) of the lymphatic drainage of the breast is to the ipsilateral (same side) axillary nodes. Nearly all lymphatics of the breast drain along a subdermal plane into the axillae, typically collecting in a single sentinel lymph node at the lateral border of the pectoralis major muscle.
What is lymphatic system in the breast?
Lymphatic circulation in breast tissue helps regulate the local fluid balance as well as filter out harmful substances. But the breast's lymphatic system can also spread diseases such as cancer through the body. Lymphatic vessels provide a highway along which invasive cancerous cells move to other parts of the body.Aug 13, 2020
Where is the posterior part of the breast?
The mammary tissue also extends variably into the axilla as the glan- dular Tail of Spence. The posterior surface of the breast rests on portions of the fasciae of the pectoralis major, serratus anterior, external abdominal oblique, and rectus abdominis muscles. of the pectoralis fascia and a layer of muscle as well.
What is composition of breast?
Breasts are made up of lobules, ducts, and fatty and fibrous connective tissue. Lobules are the small glands that produce milk, while ducts are the tiny tubes that carry the milk from the lobules to the nipple. Together, the lobules and ducts are referred to as glandular tissue.
What is the breast composed of?
What is a breast made of? Female breasts contain different types of fatty, fibrous, and glandular tissue: glandular tissue includes the breast lobes and breast ducts. fibrous, or supportive or connective, tissue is the same tissue that ligaments and scar tissue are made of.
What is the base of the breast?
The base of the breast lies on the pectoral fascia – a flat sheet of connective tissue associated with the pectoralis major muscle. It acts as an attachment point for the suspensory ligaments. There is a layer of loose connective tissue between the breast and pectoral fascia – known as the retromammary space.
Where is the breast located?
The breast is located on the anterior thoracic wall. It extends horizontally from the lateral border of the sternum to the mid-axillary line. Vertically, it spans between the 2nd and 6th costal cartilages. It lies superficially to the pectoralis major and serratus anterior muscles.
What nerves innervate the breast?
The breast is innervated by the anterior and lateral cutaneous branches of the 4th to 6th intercostal nerves. These nerves contain both sensory and autonomic nerve fibres (the autonomic fibres regulate smooth muscle and blood vessel tone).
Which cancer is the most common in the UK?
Breast cancer is the most common type of cancer to be diagnosed within the UK. After lung cancer it has the second highest death rate due to cancer. It is more common in women than men.
What is the arterial supply to the breast?
The arterial supply to the breast is primarily derived from branches of the internal thoracic (mammary) artery, intercostal arteries, and the lateral thoracic artery ( Fig 1 ). Superficially, arterial branches of the internal and lateral thoracic arteries arborize across the breast and send perforating branches deep into the breast parenchyma.
What are the vascular abnormalities of the breast?
Vascular abnormalities of the breast include a wide spectrum of arterial and venous disorders, as well as benign and malignant vascular masses. Multimodality imaging is often necessary to accurately diagnose several of these uncommon conditions, and pathologic correlation can be important for accurate diagnosis of vascular masses. After a review of the vascular anatomy of the breast, the authors discuss the imaging appearance of several native arterial disorders (atherosclerosis and aneurysm) and venous disorders (superior vena cava syndrome, congestive heart failure, thrombophlebitis, and varix). Benign vascular tumors (hemangioma, lymphangioma, and angiolipoma) and malignant vascular tumors (angiosarcoma and hemangiopericytoma) that may be encountered in the breast are also reviewed. In addition, pitfalls in the correct interpretation of vascular breast lesions (devascularization of masses and pathologic mimics) are reviewed. Understanding and assessing normal and pathologic breast vasculature will permit more accurate diagnosis and treatment planning and allow breast imagers to have a more active role in breast care.
Why is histopathology important for breast imaging?
Histopathology plays an important role in the diagnosis of breast diseases, and breast imagers often need to be familiar with the histopathologic appearance of a variety of breast conditions to determine if there is radiologic-pathologic concordance after breast biopsy, for agreement on the correct diagnosis and treatment plan, and to ensure that follow-up imaging recommendations are safe. Several breast conditions have histopathologic appearances that can mimic other diseases and are of interest, as they may incorrectly lead to a diagnosis of a vascular breast mass.
Where does the lymphatic system originate?
The rich lymphatic system of the breast originates in the walls of mammary ducts and in interlobular connective tissue.
Is hemangioma a benign tumor?
Hemangioma. —Breast hemangioma is a benign vascular tumor with a frequency of as much as 11% in postmortem specimens ( 20 ). These lesions are classified as capillary or cavernous hemangiomas, depending on the size of their vascular channels.
What is angiosarcoma in breast?
Angiosarcomas are malignant tumors that result from neoplastic transformation of endothelial cells that line blood vessels. Although these tumors are rare, the breast is one of the more common locations in which they occur ( 35 ).
What is a juvenile fibroadenoma?
Juvenile or cellular fibroadenoma is an uncommon histopathologic variant (7%–8% of fibroadenomas) that usually grows rapidly and is termed a “giant” fibroadenoma when more than 5–10 cm in diameter ( 43 ). Owing to rapid growth and large size, a giant juvenile fibroadenoma may outgrow its blood supply and infarct.
What is the breast made of?
The breast is made up of fatty tissue and glandular, milk-producing tissues (see the image below). The ratio of fatty tissue to glandular tissue varies among individuals. In addition, with the onset of menopause (ie, decrease in estrogen levels), the relative amount of fatty tissue increases as the glandular tissue diminishes.
Where is the nipple located?
The nipple should lie above the inframammary crease and is usually level with the fourth rib and just lateral to the midclavicular line.
Where is the external oblique muscle located?
External oblique. The external oblique muscle is a broad muscle that runs along the anterolateral abdomen and chest wall. Its origin is from the lower 8 ribs, and its insertion is along the anterior half of the iliac crest and the aponeurosis of the linea alba from the xiphoid to the pubis.
Where is the pectoralis major muscle located?
The base of the breast overlies the pectoralis major muscle between the second and sixth ribs in the nonptotic state. The gland is anchored to the pectoralis major fascia by the suspensory ligaments first described by Astley Cooper in 1840.
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