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6 Ultrasound Features of Different Types of Breast Cancer
(Fig. 6.4 ) and is characterized with the following US features:
Hypoechoic lesion • Heterogeneous echostructure • Irregular shape • Lobulated, rough boundaries • Indistinct contours • A- or hypovascular in CDI, PDI, and 3DPD • Intense hard staining with US elastography
a1
It is macroscopically presented with dense nodules without clear boundaries, often bilateral, and exhibits scirrhous growth with intraorganic diffusion. This type of cancer dominates in the group of X-ray-negative tumors; therefore, US is advantageous in its diagnosis.
According to Marquet et al. ( 1995 ) , scirrhous breast lesion is more often imaged as a lesion with indistinct contours. It is a consequence of
Fig. 6.1 An invasive ductal
breast carcinoma. ( a ) 1–2. Grayscale US. ( b ) Macroscopic view. ( c ) Invasive ductal carcinoma section stained with H&E; original magni fi cation, ×100
a2
1336 Ultrasound Features of Different Types of Breast Cancer
Fig. 6.1 (continued)
b
c
invasive growth, and its starlike speculated shape results from connective tissue. According to Ueno ( 1996 ) and Mihaylov and Skrynnik ( 1997 ) , posterior shadowing assumes signi fi cant connec­tive tissue component within the tumor structure.
Breast sarcomas account for 0.2–4.0 % of all
malignant breast lesions (Rozhkova 1993 ;
Korzhenkova 2004 ) and are observed in all ages.
Characteristic US features of breast sarcoma (Fig. 6.5 ) are listed below:
Hypoechoic lesion
Heterogeneous echostructure with anechoic
incorporations
Smooth indistinct borders
134
6 Ultrasound Features of Different Types of Breast Cancer
Fig. 6.2 Lobular breast
carcinoma in situ. ( a ) Grayscale US. ( b ) H&E- stained image of a section of lobular carcinoma in situ; original magni fi cation, ×100
a
b
Large size (more often) • Hyper- or hypovascularity with CDI, PDI, and • 3DPD Intense, irregular (more often “mosaic”) stain-• ing with US elastography Rare metastasis in axillary lymph nodes Mucinous cancer (colloid, gelatinous, mucous
tumor) is a rare subtype of invasive ductal
carcinoma. It has a relatively good prognosis. Its macroscopic view represents a well-circum­scribed breast lesion of gray color with a wet gelatinous surface at a cut. Microscopic view reveals solid or mucinous complexes of mono­morphic cells, which contain mucous in the cytoplasm, located among massive clumps of slime.
Fig. 6.3 Invasive lobular
breast carcinoma. ( a ) Grayscale US. ( b ) H&E- stained image of a section of invasive lobular carcinoma; original magni fi cation, ×100
1356 Ultrasound Features of Different Types of Breast Cancer
a
b
US features of mucinous breast carcinoma
(Fig. 6.6 ) are listed below:
Hypoechoic lesion • Heterogeneous echostructure • Polycyclic rough borders • Accurate or indistinct contours
Sometimes posterior enhancement, more
rarely acoustic shadow
A- or hypovascular in CDI, PDI, and 3DPD
Intense, irregular “mosaic” staining with US
elastography
Rare metastasis in axillary lymph nodes
136
Fig. 6.4 Scirrhous breast
carcinoma. ( a ) Grayscale US. ( b ) H&E-stained image of a section; original magni fi cation, ×100
6 Ultrasound Features of Different Types of Breast Cancer
a
b
Medullary breast carcinoma is most often rep- resented as an accurately circumscribed nodule of grayish color, soft consistence, and impure structure, which exhibits the following US fea­tures (Fig.
6.7 ):
Roundish shape • Decreased echodensity • Heterogeneous echostructure, often with ane-• choic incorporations Accurate contours • Irregular borders
A- or hypovascular pattern in CDI, PDI, and • 3DPD Decreased, irregular “mosaic” staining with • US elastography
Tubular breast carcinoma is a rare type of cancer. It was sorted out of the group of in fi ltrative ductal cancer due to its more favorable clinical fl ow and forecast. It is most often met in the senior age. Microscopic view reveals unilaminate tubules of slightly angular, extended shape. Stroma is characterized with expressed fi brosis
Fig. 6.5 Breast sarcoma. ( a )
Grayscale US. ( b ) Pappenheim-stained image of a section; original magni fi cation, ×1,000
1376 Ultrasound Features of Different Types of Breast Cancer
a
b
and hyalinosis. The foci of periductal and perivas­cular elastosis are often observed.
Tubular breast carcinoma sonographically is usually de fi ned through the following ways (Fig.
6.8 ):
Lesion of mixed echodensity • Irregular structure • Even or rough borders • Indistinct contours • Often with posterior acoustic shadowing
A- or hypovascular pattern in CDI, PDI, and • 3DPD Intense hard irregular staining with US • elastography
According to Tro fi mova ( 2002 ) and Zabolotskaya ( 2006 ) , none of the US features authentically characterizes breast carcinoma. The majority of features may be considered only in a complex with other criteria and the data of different methods (Sencha et al. 2009 ) .
138
Fig. 6.6 Mucinous breast
carcinoma. ( a ) Grayscale US. ( b ) H&E-stained image of a section; original magni fi cation, ×400
6 Ultrasound Features of Different Types of Breast Cancer
a
b
Routine and new US technologies permit to sort out the features of lesions, which are character­istic for malignancies, to facilitate differential diagnosis in the majority of complex diagnostic cases.
All available US technologies assist in the
division of patients into the following groups:
Patients with normal breast, which do not • demand further thorough examination or fol­low-up. They are to undergo breast exam once in 1–2 years. Patients with breast lesions that do not • demand surgical treatment. They are subject
to follow-up with breast examination once in
6–12 months.
Patients with breast masses suspicious for
malignancy. Further examinations (such as
breast biopsy) are necessary. Subsequent sur-
gery may apply.
High quali fi cation and cooperation of doctors of different specialties, following the principles of continuity of diagnostic process, and utilization of all available technologies enable rational planning of diagnostic and medical tactics with improvement in the diagnosis of breast tumors and signi fi cant increase in the ef fi cacy of their treatment.
Fig. 6.7 Medullary breast
carcinoma. ( a ) Grayscale US. ( b ) Pappenheim-stained image of a section; original magni fi cation, ×1,000
1396 Ultrasound Features of Different Types of Breast Cancer
a
b
Example of US Report in a Patient with Breast Carcinoma
Date: Name: B. Age: 52 The fi rst day of last menses: Breasts are mainly presented by adipose tis-
sue. Glandular tissue is up to 11 mm thick. Fibrous tissue is expressed moderately in all quadrants. Lactiferous ducts within the right breast are moderately dilated up to 0.4 cm, mainly in outer quadrants. A homogeneous hypoechoic
lesion of 2.3 × 3.1 cm in size of irregular starlike shape with indistinct, rough boundaries is located in the upper-outer quadrant (10 o’clock position) of the right breast. The lesion is hypovascular with CDI, PDI, and 3DPD (3 color pixels in the central area). It demonstrates intense irregular hard (blue) staining with sonoelastography.
Enlarged axillary lymph nodes are detected on the right side up to 1.0–2.2 cm in size and hypoechoic with irregular structure and disorga­nized blood fl ow pattern. The lymph nodes of over groups are not enlarged.
140
Fig. 6.8 Tubular breast
carcinoma. ( a ) Grayscale US. ( b ) H&E-stained image of a section; original magni fi cation, ×100
6 Ultrasound Features of Different Types of Breast Cancer
a
b
CONCLUSION: Right breast lesion suspi­cious for carcinoma. Sonographic signs of metastasis in the right axillary lymph nodes.
Biopsy of the lesion and right axillary
lymph nodes is recommended.

Differential Diagnosis of Breast Diseases

7
The incidence of breast diseases in fertile women is 10–65 % (Zabolotskaya et al. 2002 ) . All breast changes can be divided into two basic groups: tumoral and non-tumoral processes. The diagnosis of breast diseases should always implicate oncologic concern. Breast carcinoma is differentiated with the big group of benign focal and diffuse breast changes.
Benign breast changes are observed most often. They confer abnormalities with various clinical, morphological, and etiological features. There are several types of classi fi cations. For example, the following classi fi cation is used for practical purposes in Russia since 1985: I. Diffuse mastopathy
1. With prevalence of a glandular component (adenosis)
2. With prevalence of a fi brous component
3. With prevalence of a cystic component
4. Mixed type
II. Nodular mastopathy III. Benign tumors and tumorlike processes
1. Adenoma
2. Fibroadenoma
3. Intraductal papilloma
4. Cyst
IV. Special types
1. Phyllodes tumor

7.1 Benign Lesions

Fibroadenoma is a benign breast tumor from the group of mixed connective tissue and epithelial tumors. It accounts for 95 % of all benign breast
lesions (Zabolotskaya 2006 ) . It demonstrates a well-circumscribed nodule, which can be easily displaced against the surrounding tissues. Fibroadenoma most often affects fertile women of 20–45 years. The size of a lesion can be different but usually does not exceed 3 cm. Fibroadenoma is as a rule represented with a solitary nodule, although it can be multiple in 20 % of cases and bilateral in 10 % (Korzhenkova 2004 ) . Sometimes it exhibits fast growth, especially in puberty and after an abortion. Fibroadenomas tend to regress with age that is accompanied with hyalinosis and stromal calci fi cation.
Malignant transformation of fi broadenoma is an uncommon feature (5 %). Lobular cancer in situ arises most often in these cases (Sinyukova et al. 2007 ) .
Depending on histological structure, fi bro­adenoma can have several types: intracanalicular, pericanalicular, mixed, and juvenile.
Fibroadenoma usually demonstrates the fol­lowing US features (Fig. 7.1 ):
Solid breast lesion of decreased or usual
echodensity
Homogeneous structure (rare cases of heteroge-
neous structure result from fl uid incorporations,
calci fi cations, or echogenic fi brous structures)
Always accurate contours
Smooth or lobulated borders, which depend
on histological type
Sometimes with posterior echo enhancement
Mobile at compression the US probe
A- or hypovascular in CDI, PDI, and 3DPD
Irregular mosaic staining with US elastography
A.N. Sencha et al., Breast Ultrasound, DOI 10.1007/978-3-642-36502-7_7, © Springer-Verlag Berlin Heidelberg 2013
141