Breast Lump: Clinical Approach😍

Breast Disorders: Clinical Approach

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Work Up of Breast Disorders

  • NOTE
    • PET scan would never be an answer → WHEN DIAGNOSIS IS TO BE MADE.
    • ONLY USED IN STAGING
Dimpling
Dimpling
Retraction
Retraction
Peau d’orange (PDO)
Peau d’orange (PDO)

Clinical Signs

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Feature
Dimpling
Retraction
Peau d'orange (PDO)
Structure
Ligaments of Cooper
Lactiferous ducts
Superficial (Subdermal) lymphatics
Involvement
Cancer related skin tethering
Cancer related tethering or Duct Ectasia
T4b disease
Features
-
Circumferential → Malignancy

Slit-like → Duct ectasia
T4d
Inflammatory breast cancer
(if >1/3rd of skin affected)
Skin involved?
No
No
Yes

Triple Assessment → 99.9%

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  1. History & Clinical Examination
      • Use the dial clock method to document lesion location.
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  1. Radiological Imaging
      • <40 years: Ultrasound (USG)
        • D/t ↑ density
      • >40 years: Mammogram
  1. Histopathological Examination
      • FNAC
      • Core needle biopsy is the standard.
      • Lymph node biopsy is contraindicated in case of a palpable lymph node.
A lump in the breast is observed in a female patient. Among the options listed below, all but one can be employed to exclude the presence of cancer. Which one is not applicable for this purpose?
A. Radiological investigations
B. PET scan
C. Clinical examination
D. Histology and cytology
ANS
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A 50-year-old female patient presents with a 4 x 3 cm irregular mass in the upper outer quadrant of the right breast, which is not fixed to the skin or the chest wall. A 2 cm lymph node is palpated in the right axilla. No mass is palpated in the opposite breast. Which of the following investigations would you perform in this patient?
  1. Bilateral Mammography
  1. PET Scan
  1. Biopsy of the breast mass
  1. USG guided biopsy of the lymph node
ANS
  • 1, 3
  • Lymph node biopsy is contraindicated in case of a palpable lymph node.

Imaging & Screening

BIRADS Score (Breast Imaging Reporting and Data System)

  • Modalities → USG, MRI, Mammogram
Score
Inference
Management
Mnemonic
0
Incomplete/
Inconclusive
Additional imaging needed
Zero has no value unless something is added.
1
Negative
No Bx; Follow up in 1 year
1 laid horizontally = minus sign.
2
Benign lump like fibroadenoma
No Bx; Follow up in 1 year
"B" is 2nd alphabet → B = Benign.
3
Probably Benign
Follow up in 6 months
(Risk of cancer <2%)
4
Suspicious
Core Needle Biopsy
4a: Low suspicion
4b: Moderate suspicion
4c: High suspicion
"Four" rhymes with "core" → Core needle biopsy.
5
Highly suggestive of malignancy
Core Needle Biopsy
"High five" emoji.
6
Biopsy proven malignancy
Surgical excision when appropriate
6 flipped = "P" → P = Proven.
Green → 14
Green → 14

Screening Guidelines (ASBRS)

  • Average Risk:
    • 25–39 years
      • Clinical breast examination every 1–3 years
    • ≥ 40 years of age
      • Annual mammography
  • Higher than Average Risk:
    • 21 years
      • Consult healthcare professional every 6–12 months
    • Imaging
      • Annual MRI or mammogram at
        • 25 years3D mammography at 30 years
          • BRCA mutation.
          • Prior chest wall radiation
        • OR
        • 10 years before age of youngest affected family member
        • Whichever is earlier
      • Annual 3D mammography/MRI at 35 years
        • Strong family history.
        • Predicted lifetime risk >20%
          • By Gail, BRCA pro model
  • Stop screening when:
    • Life expectancy becomes <10 years.

High-Risk Patients for Breast Cancer

(According to NCCN 2022 guidelines)
  • Known gene mutation
    • BRCA1, BRCA2, TP53, PTEN, In woman or first-degree relative
  • Family history
    • Two first-degree relatives with breast cancer
    • With or without known gene mutation
  • Chest irradiation
    • Exposure between 10–30 years of age
  • Past breast cancer
    • Biopsy-proven breast cancer
  • Risk models
    • ≥ 20% lifetime risk of breast cancer

Mammograph

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  • Popcorn calcificationFibroadenoma
  • Spiculated massMalignancy.
  • Breast X-ray.
  • Radiation exposure: 0.1-0.2 cGy.
  • Machine identified by compression plates.
    • Compression is a must.
      • Makes breast density and thickness uniform.
      • Improves penetration.
      • Prevents overlapping of tissue.
      • Allows for better screening.
  • Contraindicated in acute painful conditions.
    • Mastitis.
    • Breast abscess.

Views:

  • Craniocaudal:
    • Left and Right breast seen.
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  • Mediolateral oblique:
    • Axillary lymph nodes also seen.
    • Maximum breast tissue is seen.
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Microcalcification:

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  • Highly suspicious of cancer.
  • Needs biopsy.
  • Corresponds to BIRADS 5.
  • In decreasing order of risk of malignancy-
    • Cluster microcalcification (maximum risk)
    • Linear microcalcification
    • Segmental microcalcification
    • Diffuse microcalcification (minimum risk)
  • Note
    • Microcalcification → Suggests Malignancy
    • Popcorn calcificationFibroadenoma

Ivory vertebrae.

  • Seen in
    • Pagets disaese
    • Hodgkins Lymphoma
    • Blastic mets
      • Breast Ca
      • Prostate Ca
    • HOD Page il Ivory kuthi vach

Q. Benign or malignant?:

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  • Malignancy:
    • Irregular/spiculated margins.
    • Taller > Wider.

MRI

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  • Kinetic Curves can be performed.

Type 2

  • Mnemonic: 2 → Plateau

Type 3 curve:

  • Rapid Wash in and Rapid Washout.
  • Suggestive of Malignancy.

Simple breast cyst

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  • Fluid-containing lesion.
  • Exhibits Posterior Acoustic Enhancement.

Indications:

  • Screening for young > 25 years & high-risk patients.
  • Imaging of choice (IOC) for breast implants.
  • Detection of recurrence vs. scar tissue.
  • Most sensitive for Ductal Carcinoma In Situ (DCIS).

Breast Implant Rupture Findings:

Intracapsular

  • Linguini sign (MRI),
    • Lingurie → rich → MRI → Inside house (intracapsular)
      Lingurie → rich → MRI → Inside house (intracapsular)
  • Stepladder (USG).
    • Step  → inside house → intracap
      Step → inside house → intracap

Extracapsular

  • Snowstorm (USG).
    • snow outside
      snow outside

Biopsy Techniques

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  • Punch Biopsy:
    • Used for skin lesions/cancers.
    • Paget's disease of the breast.
  • Incisional Biopsy (Tru-cut/Core needle):
    • IOC for most breast lesions.
    • A 14 G biopsy gun is typically used.

Foramen of Langer

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