A Rare Case of Concurrent Intraventricular Meningioma and Choroid Plexus Papilloma: A Case Report.

This case presents an unusual combination between an intraventricular meningioma and a choroid plexus papilloma. Intraventricular meningiomas are rare intraventricular tumors presenting with symptoms of hydrocephalus, headache, and neurological deficits. The rarity of choroid plexus papillomas is highlighted in medical diagnostics, with the majority of these findings being incidental within the setting of obstructive hydrocephalus.

Primary pleomorphic breast sarcoma - a case report.

Primary mammary sarcomas are very rare, histologically heterogeneous non-epithelial malignant neoplasms. Primary undifferentiated pleomorphic sarcoma is a rare malignant mesenchymal tumor in the breast. It is characterized by marked cellular atypism and pleomorphism.

Unusual Presentation of Thoracic Epidural Ewing Sarcoma in a 20-Year-Old Patient: A Case Report.

The aim of this case report is to present a rare case of epidural Ewing sarcoma with spinal cord compression, which is an uncommon presentation of this tumor. Ewing's sarcoma is a primary malignant tumor predominantly affecting individuals in their second decade of life, primarily impacting those aged 10 to 25, with the average age of onset being around 20 years. Epidemiological studies reveal that this cancer most commonly arises in the diaphyses of the long tubular bones in the lower extremities.

Diagnostic Challenges of Sinonasal Pleomorphic Adenoma.

Pleomorphic adenomas (PAs) are benign tumors of the salivary glands. Rarely, they arise in the sinonasal cavity, presenting as well-defined, homogeneous soft tissue masses, causing expansive bony changes. The significance of PAs is the possibility of giving rise to malignant carcinoma - "carcinoma ex-pleomorphic adenoma" (CXPA).

Expression of HIF-1α, Ki67, SMA and E-cadherin in endometriosis, endometrial and ovarian carcinoma.

Endometriosis is a benign gynecological condition that shares many characteristics with cancer cells, including immune evasion, survival, adhesion, invasion, and angiogenesis. The simultaneous investigation of tissue hypoxia, EMT, and proliferative index in endometriosis, endometrial, and ovarian carcinomas may provide new insight into the evolution and progression of gynecological neoplasms.