No abstract available.
Breast* ; DNA* ; P-Glycoprotein*

No abstract available.
Breast* ; DNA* ; Proliferating Cell Nuclear Antigen*

No abstract available.
Cholecystectomy*

No abstract available.
Lymphoma*

No abstract available.
Biopsy* ; Breast Neoplasms* ; Breast*

No abstract available.
Melanoma* ; Mycobacterium bovis*

No abstract available.
Thyroid Gland*

A heterotopic or ectopic pancreas is defined as the presence of pancreatic tissue that lacks anatomic and vascular continuity with the main body of the pancreas. Pancreatic heterotopia is characterized by the presence of pancreatic acinar, islet, and ductular elements. Most examples are incidentally encountered during surgery, and, on rare occasions, epigastric pain, weight loss, hemorrhage, gastric outlet obstruction, and intussusception have been directly attributable to the presence of the heterotopic pancreas. A malignant transformation in an ectopic pancreas is exceptional and intestinal obstruction of the small bowel by an adenocarcinoma arising in an ectopic pancreas has not been reported yet. We present the case of a ductal adenocarcinoma originating in the heterotopic pancreas in the jejunum of a 73-year-old man. The tumor was found to obstruct the jejunum at a distance of about 25 cm distal to the ligament of Treitz. The resected jejunum histologically showed a ductal adenocarcinoma that originated from the ectopic pancreas. To our knowledge, this would be the first case in Korea, which the patient presented with a small bowel obstruction due to a malignant transformation of an ectopic pancreas.
Adenocarcinoma* ; Aged ; Gastric Outlet Obstruction ; Hemorrhage ; Humans ; Intestinal Obstruction ; Intussusception ; Jejunum* ; Korea ; Ligaments ; Pancreas* ; Weight Loss

BACKGROUND: Nm23 gene was identified by the hybridization between two murine melanoma cell lines which had low or high metastatic potential and was located in chromosome 17q22. A number of tumor cohort studies have shown an inverse relationship between the levels of expression of nm23 protein and disease aggressiveness and tumor metastatic potential. METHODS: In order to determine the significance of overexpression of the antimetastatic gene nm23 protein in human-lymph node-negative breast cancer and to compare it with established clinicopathologic prognostic factors such as the tumor size, histologic grades, TNM stages, and hormonal receptor status, we analyzed the nm23 protein expressions by immunohistochemical staining in 53 lymph-node-negative breast-cancer tissue specimens. RESULTS: The nm23 protein expression was positive in 35 cases (66%). There was no relationship between nm23 protein overexpression and menopause status, tumor size, histologic grade, and hormonal receptor status, but tumor stage correlated with nm23 protein overexpression. Also, overexpression of the nm23 protein was significantly correlated with a longer disease-free survival rate. CONCLUSION: Expression of nm23 protein may be of value for predicting the long-term disease-free survival rate in lymph-node-negative breast-cancer patients.
Breast Neoplasms ; Breast* ; Cell Line ; Cohort Studies ; Disease-Free Survival ; Female ; Humans ; Lymph Nodes* ; Melanoma ; Menopause ; Staphylococcal Protein A*

Apocrine carcinoma is an uncommon, poorly characterized type of breast tumor. The histologic characteristics of apocrine epithelium in malignant breast lesion were first noted by Krompecher(1916), while the first detailed description of an apocrine carcinoma is credited to Ewing in 1928. The reported incidence of apocrine carcinoma is approximately 0.4% of breast cancers. Apocrine carcinoma has distinct histologic and ultrastructural features that distinguish it as a specialized form of infiltrating ductal carcinoma. The finding of a uniform pattern of apocrine differentiation with dense granularity typifying the majority of cells characterizes this variant. We experienced two cases of invasive apocrine carcinoma of the breast and report with a review of the related literature.
Breast Neoplasms ; Breast* ; Carcinoma, Ductal ; Epithelium ; Incidence