OBJECTIVE To determine the ultrastructural features of diffuse malignant pleural mesothelioma cells in cytologic specimens from pleural effusions. STUDY DESIGN We retrospectively studied 35 pleural effusions: 12 diffuse malignant pleural mesotheliomas (8 epithelial type, 4 biphasic type), 12 pulmonary adenocarcinomas and 11 cases of reactive mesothelial cells. RESULTS In the cytoplasm, reac...

Aims: The study cytomorphologic features that distinguish cystic papillary thyroid carcinoma from other cystic thyroid lesions. Materials and Methods: This study was carried out in the department of pathology in a tertiary care health centre in north India over the period of one year. Results: Total 70 lesions showed cystic degeneration were included in the study. Out of 70 cases 18 were malign...

An antibody was raised against a protein isolated from the cytoplasm of mesothelioma cells. It was subsequently used in an immunoperoxidase procedure on formalin fixed, paraffin embedded tissue sections. A representative sample of benign and malignant tumours from all the systems of the human body was examined. All the tumours derived from coelomic surfaces (mesotheliomas of pleura, peritoneum,...

Basal cell carcinoma (BCC) commonly affects the elderly and is mostly confined to the head and neck region. Only 10% of all cases occur on the trunk. We presented a case of bullous lesion on the abdomen in a young male, initially diagnosed by clinicians as a vascular nevus. Histopathological examination and immunohistochemistry (IHC) revealed it to be Nodular cystic variant of BCC. This rare va...

cystic hygroma is a well-recognized lesion in paediatric patients but it is very rare in adults. we report here a case of cervical cystic hygroma in a 45 yr old male. the reasons to present this case are 1) its rarity in adults 2) unusual age of presentation 3) simulates various benign and malignant lesions at this site 4) is a diagnostic challenge and 5) role of histology for definitive postop...

Mesothelioma, is a rare and poorly understood disease that arises from mesothelial cells lining serous cavities. From a histopathologic point of view there are epithelial, connective tissue and mixed varieties. Although commonly found in the pleura, the peritoneum is involved in 20-40% of cases.1-5 Well-Differentiated Papillary Mesothelioma of the Peritoneum (WDPMP) is a type of epithelial meso...

the nodular thyroid diseas is one of the most common disturbances o the thyroid gland wheras malignant tumors are among the most unusual entities of it. not only differentiation of these two spectra but also the problems to achieve early diagnosis and treatment, have been a matter of concern, research, and controversy. two hundred patients were assessed at the cancer institute of imam khomeini ...

Background: Differentiation of benign from malignant mesothelial proliferations is a major problem in the pathology of the serosal membranes, particularly in small biopsy specimen. This study was conducted for the evaluation of proliferative marker for distinction between malignant mesothelioma (MM) and mesothelial hyperplasia (MH). Materials and Methods: Thirty six cases of malignant mesotheli...

Lymphangioma is a rare benign tumor of the lymphatic vessels hamartomatous nature. We report case lingual lymphangioma in 2-year-old child, revealed by macroglossia. The radiology suspected lesion. Anatomopathological examination confirmed diagnosis cystic lymphangioma, and determined its characteristics.

Background: Mucocele of the appendix is a clinical term for a pseudocyst that is associated with mucus extravasation into the surrounding medium. This may be the result of neoplastic causes. Case Presentation: Two cases of the mucocele of the appendix at Golestan hospital of Ahwaz were found. The first case was a 70 years lady who complained of the pain in lower part of her abdomen since 1 yea...