XXXX : clinicopathological and immunohistochemical features.

@entity1 @entity588 @entity5 @entity1710 @entity2467 @entity361 @entity2280 @entity674
OBJECTIVES: To study the clinicopathological and immunohistochemical features of @entity674 ( @entity674 ) in Kuwait. MATERIALS AND METHODS: @entity1710 - and eosin-stained sections of primary @entity361 were reviewed. Immunohistochemical staining was performed using a panel of antibodies to determine muscle and neural differentiation, the incidence of @entity2467 and @entity2280 expression, as well as @entity588 and cytokeratin expression. Each stain was interpreted as negative or positive. The staining intensity of positive cases was graded as weak, moderate or strong. RESULTS: The age range was 25-80 with an average age of 54 and a male:female ratio of 3:2. The stomach was the most common site for these @entity5 , followed by the small intestine. Histologically, 46% were classified as malignant and 54% were benign. Most of the @entity5 occurred in males, particularly in the stomach or small intestine. There was no significant difference in @entity1 age between @entity5 . The most sensitive markers were muscle-specific actin for muscle differentiation and glial fibrillary acidic protein for neural differentiation. @entity2467 expression was seen in 81% and @entity2280 in 54% of all @entity5 . CONCLUSIONS: The results of this study show that the stomach is the most common site for these @entity5 , that @entity5 are more likely to occur in the small intestine than in the stomach, and that there is no difference between benign and @entity5 with regard to age. Our findings are comparable to those of other workers, although our male:female ratio was slightly higher.
