Retromammary Space

It contains loose connective tissue and aids in mobility of the breast on the thoracic wall.

Retromammary space. The retromammary space is often the site of breast implantation due to its location away from key nerves and structures that support the breast. Retroglandular clear space between the posterior border of the breast parenchyma and the chest wall on any view especially on the cc view. In self examination for breast cancer mobility can be decreased.

As the loose connective tissue of the retromammary space delineates the breast from the underlying pectoralis major the suspensory ligaments of cooper anchor the breast onto the pectoralis major fascia and the dermis. The mobility of the female breast on the body wall is largely due to this space. Chassaignac bursa also known as the retromammary bursa submammary serous bursa or occasionally chassaignac bag is the space behind the breast lying between the pectoralis fascia posteriorly and deep layer of superficial fascia anteriorly.

The upper outer quadrant typically contains more fibroglandular tissue than the other quadrants and is where cancers are most likely to develop. The fibroglandular tissue is surrounded by mostly fatty tissue in the subcutaneous and retromammary retroglandular regions fig. It allows for movement of the breast tissue.

Retromammary space is a loose areolar tissue that separates the breast from the pectoralis major muscle. Retroareolar space on a craniocaudal cc view the medial half of the breast no man s land. The retromammary space is located between the membranous layer of superficial fascia and the deep fascia covering the muscles of the thorax.

Signs of breast cancer may include a lump in the breast a change in breast shape dimpling of the skin fluid coming from the nipple a newly inverted nipple or a red or scaly patch of skin. Retromammary space breast cancer is cancer that develops from breast tissue. The retromammary space is located posterior to the pectoralis major muscle.

Acini cells are considered the functional unit of the breast.