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( √ ) or (X ). MCQs On Breast Imaging:. Breast Anatomy and Development:. (√ ). (√ ). (√ ). (√ ). (X ) Pectoralis minor. (X) Mid axillary line. 1. The Breast is a modified apocrine sweat gland. 2. The major artery to the breast is internal mammary artery.

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  1. (√ ) or (X ) MCQs On Breast Imaging:

  2. Breast Anatomy and Development: (√ ) (√ ) (√ ) (√ ) (X ) Pectoralis minor (X) Mid axillary line 1. The Breast is a modified apocrine sweat gland. 2. The major artery to the breast is internal mammary artery. 3. Azygos vein drains the breast 4. The terminal duct lobular unit is the basic functional unit of the breast 5. The level of lymph nodes involvement is related to pectoralis Major muscle 6. The breast extends lateraly till the anterior axillary line

  3. Regarding Mammography: (√ ) (X ) Craniocaudal view shows less breast tissue (√ ) (√ ) (X) Proliferative phase due to estrogen effect (√ ) 1. The skin is thickest over the upper outer quadrant 2. The craniocaudal view shows more breast tissue than the mediolateral view. 3. The pectoral muscle is not visualised in the craniocaudal view 4. Intramammary Lymph nodes are seen in the upper outer quadrant 5. Marked stromal proliferation is seen in the secretory phase of the menestrual cycle. 6. The breast completely lies in the superficial fascia

  4. Regarding Breast Ultrasound: (√ ) (√ ) (√ ) (X ) heterogenous (√ ) 1. The skin is a three layered structure 2. Coopers ligaments produce acoustic shadow 3. The Fat appear hypoechoic 4. The breast is uniformly bright due to the fibroglandular tissue 5. The ducts are clearly visualised

  5. Regarding Mammography : (X ) less than 0.5 mm (X ) not specific (X) this is a recognisable feature (√ ) 1. Microcalcification is calcification less than 1mm 2. Microcalcification is specific for carcinoma 3. Microcalcification is not seen in traumatic fat necrosis 4. Spiculated masses are carcinomas until proved by biopsy

  6. The following pattern of calcifications are definitely benign: (√ ) Cyst (√ ) Milk Calcium Cyst (X) Feature of invasive ductal carcinoma (√ ) Fibroma (√ ) Blood vessel 1. Egg shell calcification 2. Floating calcification 4. Pleomorphic branching calcifications 4. Pop corn calcification 5. Tram line calcifications

  7. Groups of breast microcalcifications areseen in : (X ) (√ ) (X ) (√ ) (√ ) 1. Fibroadenoma 2. Fat necrosis 3. Radiotherapy 4. Ductal carcinoma 5. Sclerosing adenitis

  8. Regarding Ductal Carcinoma : (X ) (√ ) (X ) (X ) (X ) 1. Constitutes 40% of all breast carcinoma 2. May be associated with lobular carcinoma 3. Mammographic appearance is larger than the clinical size 4. Arises from the large ducts epithelium 5. Usually the tumour shows well defined margin , homogenous density and no acoustic shadowing

  9. Ductal Carcinoma • It constitutes 80% of all breast cancers • Arises from epithelium of medium and small sized ducts • It can be associated with invasive tubular and lobular carcinomas. • The clinical size is bigger due to desmoplastic reaction • Usually the tumour has ill-defined margin , heterogenous density and acoustic shadow

  10. Lesions producing spiulated mass in mammography : (√ ) (√ ) (√ ) (√ ) (X ) 1. Fat necrosis 2. Sclerosing adenosis 3. Fibroadenosis 4. Abscess 5. Hamartoma

  11. Common US features of typical breast Carcinoma: (X ) (√ ) (√ ) (X ) (X ) 1. Sharp margin 2. Hypoechoic 3.Long axis is perpendicular to skin 4. Hypoechoic rim of tissue 5. Echogenicity same as adjacent fibroglandular tissue but less than fat

  12. Common US features of typical breast Carcinoma: • Irregular margin • Hypoechoic compared to adjacent fibroglandular tissue and fat • Long axis is perpendicular to skin • Hyperechoic rim of tissue (tumour, desmoplastic compressed breast tissue) • Posterior acoustic shadowing.

  13. High incidence of breast cancer recurrence is seen in : (X) Estrogen Receptor Negative (√ ) (X) Age < 40 years (√ ) (X) Positive Margin 1. Estrogen receptor positive 2. Comedo carcinoma 3. Age > 40 years 4. More intraductal component 5. Negative margin

  14. Regarding Benign Breast Disease: (X) Retroareolar (X) Staphylococcus aureus (√ ) (X) Rare 1. Breast abscess is most commonly located in the upper outer Quadrant. 2. Breast abscess is most commonly due to streptococcus 3. Skin retraction is a common presentation of fat necrosis 4. Hyalinised fibroadenoma is a common feature

  15. Regarding Lymph node involvement in Breast cancer: (√ ) (X) Larger,more rounded and less reflective (X) Axillary lymph nodes are more comonly involved (X) (√ ) 1. 40% of women have axillary lymph adenopathy at time of diagnosis 2. Involved lymph nodes are rounder and more reflective than normal at US 3. Internal mammary lymph nodes are more often involved than axillary lymph nodes of the inner quadrant tumors. 4. Internal mammary lymph nodes are usually resected at mastectomy 5. Supraclavicular nodal spread confers a poor prognosis

  16. Regarding Male Breast cancer: (X) (X) (X) Larger,more rounded and more scattered (√ ) (X) 1. Most cases occur in patients with Kleinfilter 2. Frequently bilateral 3. Mammographic calcifications are fewer than in female breast cancer. 4. It is more common on left side 5. Gynaecomastia is a predisposing factor

  17. Thank You

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