Mesotheliomas are tumors of low grade malignancy originating from mesothelial cells covering the coelomic cavities such as pericardium, pleura, peritoneum and vaginal tunic (Seo et al., 2007). The three types mesotheliomas epithelial, fibrous (arcomatous) biphasic (mixed). epithelial form, which closely resembles carcinoma adenocarcinoma, is most common type mesothelioma in dogs (Echandi Pleura...

Background: Primary Mucinous eccrine carcinoma (PMEC) is a quite rare malignant tumor that typically involves the head and neck region in approximately 75% of patients and the periorbital area is the most common area. Case Presentation: A 57-year-old man was seen with a  painless red mass involving the left lower eyelid for the past 7 months. Examination revealed a small mass measuring 0.6 cm ...

Osteoblastoma is an unusual neoplasm, usually found in the vertebral column and long bones of extremities. Maxillary involvement extremely rare. We present a case report benign osteoblastoma maxilla affecting 17 year old young male patient. The clinical presentation, radiological histopathological features as well treatment modalities this neoplasm are briefly discussed. Lastly attempt made to ...

Metastasis into a thyroid neoplasm-tumor-to-tumor metastasis-is exceedingly rare. We describe the 28th documented case of a tumor metastatic to a thyroid neoplasm and review the literature on tumor-to-tumor metastasis involving a thyroid neoplasm as recipient. All cases showed a recipient thyroid neoplasm with an abrupt transition to a morphologically distinct neoplasm. Metastasis into primary ...

BACKGROUND Conjunctival melanoma is a relatively rare ocular malignancy with substantial associated morbidity and mortality. METHODS More than 100 articles on conjunctival melanoma were reviewed, including most of the relevant recent publications cited in a current MEDLINE search. The author's experience with conjunctival melanomas is also incorporated in this review. RESULTS Recognition of...

Malignant melanoma of the oral cavity is a rare neoplasm and it is only 0.5% of the malignant neoplasms of the oral cavity, and less than 10% of all the malignant melanomas. The mean age for patients with oral melanoma is from 40 to 70 years; with a higher frequency between the 50 and 60 years. Pigmentation areas are frequently noted before diagnosis of this neoplasm. Some predisposing factors ...

Ependymoma constitute 5 % to 7 % of all primary CNS neoplasm. But their prevalence relative to other tumor type varies with patient age and presenting location. Ependymoma constitute approximately 1O % of intracranial neoplasm in pediatric population and up to 30 % of those encountered in children under 3 years of age. In spinal column, ependymoma constitute 60% of glial neoplasm, and opposed...