Atypical Ductal Hyperplasia

What is Atypical Ductal Hyperplasia?

Atypical ductal hyperplasia is the intraductal clonal epithelial cell proliferation with similar histologic features, but insufficient involvement or volume for the diagnosis of the low grade ductal carcinoma in situ. What is the Pathology of Atypical Ductal Hyperplasia? The pathology…
Gynecomastia

What is Gynecomastia?

Gynecomastia is the benign enlargement of the male breast, typically presenting as a palpable subareolar mass. Histologically, identical gynecomastoid hyperplasia can be seen in the female breast. What is the Pathology of Gynecomastia? The pathology of gynecomastia is: -Etiology: The…
Fibrocystic Changes

What are Fibrocystic Changes?

Fibrocystic changes are also called diffuse cystic mastopathies. It is a general category for numerous entities, described separately. What is the Pathology of Fibrocystic Changes? The pathology of fibrocystic changes is: -Etiology: The cause of fibrocystic changes is associated with…
Benign Epithelial Lesions of the Breast

What are Benign Epithelial Lesions of the Breast?

Benign epithelial lesions of the breast are lumps that grow in non-cancerous areas where breast cells grow abnormally and rapidly.  Examples of Benign Epithelial Lesions of the Breast include: Fibrocystic ChangesGynecomastia Atypical Ductal HyperplasiaAtypical Lobular Hyperplasia
Squamous Metaplasia of Lactiferous Ducts

What is Squamous Metaplasia of Lactiferous Ducts?

Squamous metaplasia of lactiferous ducts is when the normal cuboidal epithelium lining the lactiferous ducts is replaced by squamous epithelium, leading to intraluminal accumulation of epithelial debris. What is the Pathology of Squamous Metaplasia of Lactiferous Ducts? The pathology of…
Lymphocytic Mastopathy

What is Lymphocytic Mastopathy aka Sclerosing Lymphocytic Lobulitis?

Lymphocytic mastopathy aka sclerosing lymphocytic lobulitis is an uncommon fibroinflammatory lesion that courses with the presence of benign breast nodules. What is the Pathology of Lymphocytic Mastopathy aka Sclerosing Lymphocytic Lobulitis? The pathology of lymphocytic mastopathy aka sclerosing lymphocytic lobulitis…
Granulomatous Mastitis

What is Granulomatous Mastitis?

Granulomatous mastitis is the inflammatory process of the breast usually due to Corynebacterium species. What is the Pathology of Granulomatous mastitis? The pathology of granulomatous mastitis is: -Etiology: The cause of granulomatous mastitis inflammation and granulomas. -Genes involved: 16S rRNA…
Fat Necrosis

What is Fat Necrosis?

Fat necrosis is characterized by necrotic adipose tissue with foamy histiocytes, chronic inflammatory cells, and multinucleated giant cells. What is the Pathology of Fat Necrosis? The pathology of fat necrosis is: -Etiology: Fat necrosis may be caused by trauma, iatrogenic…
Duct Ectasia

What is Duct Ectasia?

Duct ectasia is a disorder of the extralobular ducts which is characterized by different degrees of periductal inflammation, periductal fibrosis, and duct dilatation. What is the Pathology of Duct Ectasia? The pathology of duct ectasia is: -Etiology: The cause of…
Acute Mastitis

What is Acute Mastitis?

Acute mastitis is the infection or inflammation of breast tissue, usually bacterial, often seen in association with lactation. If inflammatory disorders are left untreated it may form abscess and fistulous tracts. What is the Pathology of Acute Mastitis? The pathology…