Breast lumps ultrasound
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Breast lumps Microchapters |
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Breast lumps ultrasound On the Web |
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American Roentgen Ray Society Images of Breast lumps ultrasound |
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Risk calculators and risk factors for Breast lumps ultrasound |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Shadan Mehraban, M.D.[2]
Overview
Breast ultrasound is the first imagery modality in patients with palpable masses under 40 years old and is adjuntive modality to mammography for patients older than 40 years.Breast sonography is a type of imaginary can be used in order to Abnormal findings on mammography or MRI. Breast ultrasound improves breast cancer detection.
Ultrasound
Indications of breast ultrasonography: [1][2]
- The first imagery modality in patients with palpable masses under 40 years old.
- Adjuntive modality to mammography for patients older than 40 years.
- Abnormal findings on mammography or MRI
- Breast implants problems
- Determination of mass with microcalcification and architectural distortion findings on mammography
- Screening method for high risk individuals for breast cancer who can not undergo breast MRI.
- Evaluating axillary lymphadenopathy
Breast ultrasound improves breast cancer detection. According to the fact that 11% of palpable breast cancers were detected by ultrasound while these lesions were occult on mammography features. Combination of mammography and ultrasound increase cancer detection rate to 14% [3].
| Types of breast lumps | Characteristic findings |
|---|---|
| Cyst | Simple cyst: well-circumscribed, anechoic contents, thin echogenic external capsule, enhanced through-transmission, subtle acoustic shadowing at the ages
complicated cyst: although not purely anechoic, diffuse echoes of low amplitude Complex cyst: well-circumscribed anechoic mass with solid components cysts with sediments: an anechoic mass containing sharp margins and posterior hyperechoic sediment |
| Abscess | Hypo-anechoic mass with irregular margins and peripheral hypervascularity |
| Mastitis | Subcutaneous and parenchymal edema with small fluid collection and diffuse hypervascularity |
| Galactocele | Moderately echogenic contents with fat spreading heterogenously in the liquid component |
| Seroma | Anechoic or diffuse low-level echoes or thin fibrin septation. Blood presence may result in sediment, pseudonodule,wall-thickening and coarse septa formation |
| Liponecrosis | A nodule with same feature as complex cyst |
| Hemangioma | Based on caliber of blood vessels
Capillary hemangioma: homogenouesly hyperechoic Covernous hemangioma: mixed echotexture |
| Fibroadenoma | Classic fibroadenoma: elliptic or lobulated shape, horizontal orientation,isoechoic or mildly hypoechoic echotexture, well-defined curvilinear margin with thin echogenic capsule, unaltered US beam transmission beyond the lesion and subtle acoustic shadows on both sides of the nodule
Complex fibroadenoma: heterogenous echotexture lesion with microcysts ( apocrine metaplasia) or small hyperechoic areas ( sclerosing adenosis) |
| Phyllodes tumor | Moderately hypoechoic nodules with pseudocapsule, without posterior acoustic shadowing, sometimes pseudocystic spaces are so compressed which seem like hyperechoic striations |
| Hamartoma | Heterogenous appearance with mixture of isoechoic (adipose tissue/glandular lobules) and hyperechoic areas ( fibrous tissue) |
| Papilloma | Intraductal papilloma: well-circumscribed subareolar duct ectasiawith an iscoechoic, microlobulated surface on nodule
Intracystic papilloma: A cyst with prominent mass |
- The sonographic feature of breast abscess in lactating mother presenting with right breast lumps.There is a lobulated collection with mobile echoes mainly in upper and inner quadrant; extending from 11 o'clock to 3 o'clock.There is a discrete smaller collection in a superficial plane at 9 o'clock.
References
- ↑ Shah R, Rosso K, Nathanson SD (2014). "Pathogenesis, prevention, diagnosis and treatment of breast cancer". World J Clin Oncol. 5 (3): 283–98. doi:10.5306/wjco.v5.i3.283. PMC 4127601. PMID 25114845.
- ↑ Lehman CD, Lee AY, Lee CI (2014). "Imaging management of palpable breast abnormalities". AJR Am J Roentgenol. 203 (5): 1142–53. doi:10.2214/AJR.14.12725. PMID 25341156.
- ↑ Moss HA, Britton PD, Flower CD, Freeman AH, Lomas DJ, Warren RM (1999). "How reliable is modern breast imaging in differentiating benign from malignant breast lesions in the symptomatic population?". Clin Radiol. 54 (10): 676–82. PMID 10541394.
- ↑ Masciadri N, Ferranti C (2011). "Benign breast lesions: Ultrasound". J Ultrasound. 14 (2): 55–65. doi:10.1016/j.jus.2011.03.002. PMC 3558101. PMID 23396888.