A Rare Malignancy of the Eyelid: Report A Case of Primary Periocular Histiocytoid Carcinoma.

Primary periocular histiocytoid carcinoma is a very rare malignant tumor. Until now, less than 50 cases have been reported in the English literature. It is characterized by resistant epiphora, limitation in extraocular motility, and ptosis.

Gene rs1625649 Polymorphism in Iranian Patients with Brain Glioblastoma: A Case Control Study.

Glioblastoma (GBM) is the most common and aggressive primary malignant brain tumor with poor prognosis and high potential of dispersion to other brain tissues in adult. Effective and modern choices of treatment including chemotherapy with alkylating agents marginally extend survival of GBM. However, alkylating agents can lead to highly harmful mismatch during DNA replication causing apoptosis and cell death.

VEGF gene polymorphisms in Iranian patients with intracranial glioblastoma.

Background: Glioblastoma is one of the most common malignant brain tumors in adults with poor prognosis. Neovascularization is one of the characteristics of these tumors, which is associated with overexpression of vascular endothelial growth factor (VEGF). Accordingly, single nucleotide polymorphisms of this gene could play an important role in structural and functional alterations leading to overexpression of this gene in GBM.

Comparative value of clinical, cytological, and histopathological features in feline mammary gland tumors; an experimental model for the study of human breast cancer.

Background: The diagnosis of breast lesions is usually confirmed by fine-needle aspiration cytology (FNAC) or histological biopsy. Although there is increasing literature regarding the advantages and limitations of both modalities, there is no literature regarding the accuracy of these modalities for diagnosing breast lesions in high-risk patients, who usually have lesions detected by screening. Moreover, few studies have been published regarding the cytopathology of mammary tumors in cats despite widespread use of the animal model for breast cancer formation and inhibition.