Ebook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Ebook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2
Ebook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2
II Appearance1629. The Normal Breast■ AnatomyThe mammary gland consists of 15 to 20 lobes with varying numbers of ducts and lobules. These structures Ebook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2 are surrounded by collagenous connective tissue or stromal tissue. A lobule comprises approximately 30 terminal branches (acini or ductules) that form the parenchymal parr of the lobule. Acini and terminal ducts are surrounded by loose mesenchyma. The lobule withPeripheral ductFig. 9.1 Schematic di Ebook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2agram and terminology of the lactiferous duct system'ITDDuctules (acini)Fibrous tissue (interlobular Stroma)Extralobular terminal duct(ETD)IntralobulaEbook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2
rterminal ductDuctules (acini)Fibroustissue (intralobular stroma)Terminal ductal lobular unit(TDLU)I lie ividiuic I Cl I Idle UIWI IVJits terminal braII Appearance1629. The Normal Breast■ AnatomyThe mammary gland consists of 15 to 20 lobes with varying numbers of ducts and lobules. These structures Ebook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2ferous duct that runs toward the nipple. The 15 to 20 main lactiferous ducts open in the nipple (Fig. 9.1).The body of the gland is imbedded in fatty tissue. It is supplied by a network of blood and lymph vessels and is supported in the subcutaneous fatty tissue by connective-tissue structures known Ebook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2 as Cooper ligaments. These ligaments arise from the stromal tissue of the body of the gland and insert into the prepectoral fascia and the skin. TheEbook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2
body of the gland, which can vary greatly in form, size, and composition, converges toward rhe nipple, is generally symmetrical. and is particularly pII Appearance1629. The Normal Breast■ AnatomyThe mammary gland consists of 15 to 20 lobes with varying numbers of ducts and lobules. These structures Ebook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2h adventitial alveoli comprised primarily of connective tissue and small amounts of fatty tissue. During puberty, rhe ducts increase in length, and the terminal alveoli increase in number. These later develop into lobules. Ductal growth triggers mesenchymal metaplasia and formation of connective tis Ebook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2sue.■Clinical ExaminationOn palpation the breast is uniformly firm with readily palpable glandular tissue with a total absence of any nodular or finelEbook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2
y granular consistency.■MammographyThe underdeveloped glandular body initially appears as a small nodule, later as a small tree-like glandular structuII Appearance1629. The Normal Breast■ AnatomyThe mammary gland consists of 15 to 20 lobes with varying numbers of ducts and lobules. These structures Ebook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2sue. Substructures are not usually discernible with the exception of some vessels and Cooper ligaments within the subcutaneous tissue (Fig. 9.2).■ SonographyThe immature glandular tissue is initially relatively hypoechoic. The nodule of glandular tissue may appear as a hypoechoic nodule and should n Ebook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2ot be confused with a tumor. Even the developed glandular body is still relatively hypoechoic in adolescence and cannot always be distinguished from tEbook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2
he surrounding hypoechoic fat. The echogenicity of the glandular tissue increases with maturity. However, local differences in the maturity of breast II Appearance1629. The Normal Breast■ AnatomyThe mammary gland consists of 15 to 20 lobes with varying numbers of ducts and lobules. These structures Ebook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2emale Breast■ HistologyUnder the influence of estrogen, progesterone, prolactin. STH. ACTH. and corticoids, the ductal system becomes increasingly branched. A treelike glandular structure with glandular lobules develops. This process of growth and differentiation continues until about age 30. The hi Ebook Diagnostic breast imaging - Mammography, sonography, magnetic resonance imaging and interventional procedures: Part 2ghest proportion of lobules are located far from the nipple along the periphery, particularly in the upper outer quadrant.II Appearance1629. The Normal Breast■ AnatomyThe mammary gland consists of 15 to 20 lobes with varying numbers of ducts and lobules. These structures II Appearance1629. The Normal Breast■ AnatomyThe mammary gland consists of 15 to 20 lobes with varying numbers of ducts and lobules. These structuresGọi ngay
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