No abstract available.
Metaplasia* ; Polyps*

No abstract available.
Kidney Pelvis* ; Metaplasia* ; Ureter*

Gastric intestinal metaplasia (IM) is one of the precursors of gastric adenocarcinoma and is clinically important regarding issue for recommendation of further endoscopic evaluation. Herein we review the histologic characteristics, molecular features and pathological diagnosis of IM. Histologically, IM has been classified as 3 types: type I complete IM, type 2 incomplete IM and type 3 incomplete IM. This classification is important to clinicians as well as pathologists. We emphasize that careful follow up should be recommended in patient with extensive IM or incomplete IM.
Adenocarcinoma ; Humans ; Metaplasia ; Stomach

Primary osteosarcoma of the breast is very rare. There have been no previously reported cases in Korea. In this paper, a case of primary osteosarcoma of the breast is reported. It should be distinguished from a carcinoma with extensive osseous metaplasia. Immunohistochemical and ultrastructural studies proved that the lesion, in the absence of epithelial differentiation, was a primary osteosarcoma of the breast rather than a carcinoma with extensive osseous metaplasia. Diagnostic aspects and treatment are discussed and a literature review is given.
Breast* ; Korea ; Metaplasia ; Osteosarcoma*

No abstract available.
Gastritis, Atrophic* ; Metaplasia*

No abstract available.
Cytoplasm* ; Glomerulonephritis* ; Humans ; Metaplasia*

A subareolar abscess is the most common non-puerperal abscess of the breast. The main cause of a subareolar abscess is squamous metaplasia, which obstructs the lactiferous ducts and leads to the stasis of secretions and rupture of the ducts. However, there are other causes of subareolar abscess formation.
Abscess ; Breast ; Metaplasia ; Rupture

No abstract available.
Adenocarcinoma* ; Diverticulum* ; Female* ; Humans ; Metaplasia*

A metaplastic carcinoma of the breast is a histologically diverse type of malignancy in which an adenocarcinoma is found to co-exist with an admixture of spindle cell, squamous, chondroid, or bone-forming neoplastic cells. Metaplastic breast cancer is rare and accounts for less than 1% of all mammary tumors. An adenocarcinoma with spindle cell metaplasia is one of the least often recognized variants of a metaplastic carcinoma. The clinical behavior of this variant of metaplastic carcinoma has not yet been clearly defined. Herein, we report a case of spindle cell metaplastic carcinoma of the breast. We also present a review of the literature.
Adenocarcinoma ; Breast Neoplasms ; Breast* ; Metaplasia

The pathogenesis and origin of vulvar cyst lined by a ciliated columnar epithelium is unknown. But it is suggested that origins of the epithelium of cyst are Mullerian or Wolffian duct or urogenital sinus, while heterotopia (sequestration and migration of tissue) or dysontogenesis (defective embryonic development) or prosoplasia (abnormal development resulting in a "higher state" of organization) or metaplasia have also been suggested. We experienced one case of Mullerian cyst of vulva. So we report above the case with a brief review of literature.
Epithelium ; Metaplasia ; Vulva* ; Wolffian Ducts