background: mullerian adenosarcoma, a rare tumor, is composed of mixed mesenchymal and epithelial elements. the epithelial component is typically benign and admixed with malignant sarcomatous stroma. this tumor can be distinguished in approximately 8% of all uterus sarcomas and commonly originates in the endometrium as a growing polypoid mass in the uterine cavity. all age groups are affected b...

Background: Fibroepithelial tumors of the breast are a heterogeneous group biphasic lesions comprising an epithelial component and quantitatively predominant mesenchymal component. These classified into two major categories: Fibroadenoma phyllodes tumor (PT). Phyllodes benign, borderline malignant grade categories based on histological parameters.
 Methods: An analytical-cross sectional st...

Gastric adenocarcinoma with yolk sac tumor (YST) differentiation has rarely been reported. We report a case of primary gastric adenocarcinoma with yolk sac tumor differentiation and liver metastases of the YST component in a 50-years-old patient. This was suspected due to high serum level of alpha fetoprotein in the presence of a gastric fundal tumor. Gastric carcinoma with yolk sac tumor compo...

Prior sc immunization of BALB/c mice with 1 mg isolated M component of MOPC-11 mouse myeloma resulted in significant relative immunity to subsequent sc or ip challenge with 10(4) living cells from the same plasmacytoma. However, challenges of 10(5) and 10(6) tumor cells overcame immune status engendered by preimmunization with M component. Despite evidence for the specificity of the immunity in...

ovarian mixed germ cell tumors consisting of endodermal sinus tumor and immature teratoma are very rare and have been reported only in a few case reports. here we report a rare mixed germ cell tumor of ovary which was consisted of endodermal sinus tumor and immature teratoma components with an unusual intraabdominal location. patient was a 21 years old girl with the chief compliant of abdominal...

Bile duct mixed adenoneuroendocrine carcinoma (MANEC) is a rare entity. It is defined as having mixed elements of both neuroendocrine tumors (NET) and an adenocarcinoma element, the lesser component forming at least 30% of the tumor. It is a subtype of neuroendocrine carcinoma (NEC) showing both gland-forming epithelial tumor cells and neuroendocrine cells. It is generally misdiagnosed as chola...

epithelial myoepithelial carcinoma is a rare biphasic low grade neoplasm of salivary glands; it most commonly occurs in the parotid gland but can also arise in minor salivary glands. here a case of 58-year-old female presented with left cheek swelling of one-year duration. ct scan revealed a localized submandibular salivary gland tumor mass not involving surrounding tissues. histological examin...