Malignant mesenchymal neoplasms of the pancreas are rare and malignant islet cell tumors with sarcomatous dedifferentiation are rarer still. We present a case of malignant islet cell tumor with ...

Owing to its rarity, however, there have been no recent large clinicopathologic studies of fibrous hamartoma of infancy. Our study, representing the cumulative experience from four institutions, was ...