156 iranian patients with primary malignant tumors of the small intestine were reviewed. malignant lymphoma was the most common tumor type, comprising 128 patients (82%), followed by adenocarcinoma (22 patients, 14.1 %), leiomyosarcoma (4 patients, 2.56%) and carcinoid tumor (2 patients, 1.28%). lymphomas and adenocarcinomas were primarily located in the duodenum or jejunum, whereas leiomyosarc...

background post-traumatic stress disorder (ptsd) comprises a collection of symptoms following exposure to injury-causing accidents of life. it is estimated that the prevalence of ptsd in children with malignancy and their parents is between 10-30% and even several years after treatment of malignancy this disorderremain in 20-20% of these patients. objectives this study investigated the prevalen...

Langerhans cell histiocytosis (LCH) is a rare neoplasm defined as the proliferation of bone marrow langerhans cells, which is a kind of dendritic cells. The major pathological features of LCH are expression of CD1a and S100 as well as Birbeck granules. Its presentation can differ from a mild bone lesion to a multi-systemic evolved malignant neoplasm; however, the latter outcome is almost rare. ...

conclusion ct scan is highly accurate in differentiating malignant pleural mesothelioma and metastatic pleural diseases. pleural thickening and thickening of interlobar fissure lead us to the diagnosis of mpm and massive free pleural effusion is more commonly seen in metastatic pleural malignancy. background malignant pleural mesothelioma (mpm) is a rare malignant neoplasm of the pleura that ty...

objective: oral non- hodgkin’s lymphoma (nhl) is a relatively rare neoplasm that may develop in the soft tissues or jaw bones, with or without node or marrow involvement. oral lymphomas are often difficult to diagnose as there are no characteristic clinical features and usually appear as non-tender swellings.   case: we describe clinical, radiographic, histopathological and immunohistochemical ...

langerhans cell histiocytosis (lch) is a rare neoplasm defined as the proliferation of bone marrow langerhans cells, which is a kind of dendritic cells. the major pathological features of lch are expression of cd1a and s100 as well as birbeck granules. its presentation can differ from a mild bone lesion to a multi-systemic evolved malignant neoplasm; however, the latter outcome is almost rare. ...