2. Female Reproductive pathology 1 Flashcards
Examples of benign breast diseases that present as lesions?
Developmental abnormalities
Inflammatory lesions
Epithelial and stromal proliferations
Neoplasms
Surgical alternatives to diagnosing benign breast disease?
Mammography
Ultrasound
MRI
Needle biopsies
Use of U/S in assessing breast lumps?
Benign:
- Oval/ellipsoid
- Wider> deeper
- Smooth/thin margins
Malignant:
- Variable shape
- Deeper> wide
- Irregular/spiculated margins
- Other: Calcification, microlobulation, intraductal extension
Difference between normal and malignant cells on cytology?
Normal:
- Large cytoplasm
- Single nucleus
- Single nucleolus
- Fine chromatin
Cancer:
- Small cytoplasm
- Multiple nuclei
- Multiple and large nucleoli
- Coarse chromatin
Adolescent breast histology?
Large and intermediate-size ducts are seen within a dense fibrous stroma.
No lobular units are present.
Postpubertal breast histology?
The terminal duct lobular unit consists of small ductules arrayed around an intralobular duct.
The two-cell-layered epithelium shows no secretory or mitotic activity.
The intralobular stroma is dense and confluent with the interlobular stroma.
Lactating breast histology?
The terminal duct lobular units are conspicuously enlarged, with inapparent interlobular and intralobular stroma.
The individual terminal ducts, now termed acini, show prominent epithelial secretory activity (cytoplasmic vacuolization).
The acinar lumina contain secretory material.
Postmenopausal breast histology?
The terminal duct lobular units are absent. The remaining intermediate ducts and larger ducts are commonly dilated.
What is the Fibrocystic change?
FCC An exaggerated physiological response A non-proliferative change that includes: -Gross and microscopic cysts -Apocrine metaplasia -Mild epithelial hyperplasia -Adenosis -Increase in fibrous stroma
Typically bilateral and multifocal
Relationship between FCC and breast cancer?
FCC doesn’t increase the risk of getting breast
cancer, but it can make it more difficult to identify potentially cancerous lumps during breast examination and on mammograms.
What is proliferative breast disease?
Proliferative disease without atypia entails a 2 fold increased risk of developing carcinoma over 5–15 years and is classified simply as proliferative breast disease.
Proliferative lesions with atypia involve …..
even greater relative risk (5 fold). Such patients require close clinical monitoring.
Breast cacinogenesis?
Normal epithelium --> Proliferative disease without atypia --> Atypical hyperplasia --> DCIS --> Invasive breast cancer
What is gynaecomastia?
Hyperplasia of the male breast stromal and ductal tissue.
Causes of gynaecomastia?
- Relative increase in oestrogen to androgen ratio in circulation or breast tissue
- Secondary to drugs.
- Older patients; CV and prostate drugs
- Younger patients: Cannabis, anabolic steroids, anti-ulcer drugs and antidepressants - Physiological and present spontaneously in a trimodal age pattern (neonates, pubertal and senescence). Self limited cases
- Pathological e.g. undiagnosed hyperprolactinaemia, liver failure, alcohol excess, obesity and malignancy of testes and lung
Name 4 benign breast tumours?
Fibroadenoma
Duct papilloma
Adenoma
Connective tissue tumour
Fibroadenomas:
- Arise from?
- Composition?
- Features?
- Clinical presentation?
- Fibroadenomas arise from breast lobules and are composed of fibrous and epithelial tissue.
- They are well circumscribed and highly mobile, because of the encapsulation and pliability of young breast tissue.
- Clinically, fibroadenomas are difficult to differentiate from Phyllodes Tumours, which is a distinct pathology.
How to differentiate between fibroadenomas and Phyllode tumours?
- Phyllodes tumours are sarcomas which rapidly enlarge and have variable degrees of malignant potential.
- They are larger than fibroadenomas and tend to occur in an older age group (15-20 years later).
- Fibroadenomas appear as a well-defined, smooth, oval- shaped lump, distinctly mobile and easily identified on ultrasound.
- Young patients (less than 25 years) with clearly benign clinical and imaging findings are usually spared a core biopsy.
- In older patients we have to rule out occult malignancy / Phyllodes tumour.