Benign and Borderline

Section Links:

Normal Structure:
-Breast Development
-Pregnancy & Lactation
-Postmenopausal

Fibroadenomas
Fibroadenoma variants
Phyllodes Tumours

Papillomas:
- Intraduct papilloma
- Florid papillomatosis/
  Adenoma of the nipple
- Adenomyoepithelioma

Inflammations:
-Breast Abscess
-Fat Necrosis
-Duct Ectasia
-Mammary Duct Fistula
-Radiation Injury
-Diabetic Mastopathy
-Amyloid Tumour

Pseudo-infiltrative lesions:
-Radial scars
-Sclerosing adenosis etc

Fibromatosis

Gynaecomastia

Benign Proliferative Disease:
-Usual type hyperplasia
-Apocrine metaplasia
-Columnar Cell Change

Atypical Proliferations:
-ADH
-Flat epithelial atypia
-ALH

Benign Microcalcification:
-Sclerosing adenosis
-Apocrine metaplasia
-Columnar cell change
-Radial scars
-Old fibroadenomas
-Intraduct papillomas
-ALH
-Vascular
-Duct ectasia
-Old fat necrosis
-Calcification with lactational change

This page provides the entry point to all the benign and borderline lesions commonly encountered in breast pathology. It includes pathology seen in screening and symptomatic settings.

The following areas are covered:

• NORMAL STRUCTURE



• COMMON BENIGN LESIONS



• BENIGN PROLIFERATIVE DISEASE



• FIBROMATOSIS



• ADH & ALH



• BENIGN MICROCALCIFICATION PART 1 & PART 2