In schwannomatosis, LZTR1 and SMARCB1 are known as causative genes. previous reports of some schwannomatosis tumors, hybrid schwannoma/ neurofibroma tumor (hybrid tumor) that have both schwannoma features in a been recognized. general, consists mixture schwann cells, fibroblasts, perineural mast cells. Neurofibroma cells to be CD34 positive. On the other hand, mostly. schwannoma, Antoni B loose...

Epithelial myoepithelial carcinoma is a rare biphasic low grade neoplasm of salivary glands; it most commonly occurs in the parotid gland but can also arise in minor salivary glands. Here a case of 58-year-old female presented with left cheek swelling of one-year duration. CT scan revealed a localized submandibular salivary gland tumor mass not involving surrounding tissues. Histological examin...

So-called dedifferentiation in mesenchymal neoplasms of the uterus is very rare. Among conventional low-grade stromal tumors only three cases of dedifferentiation were reported, whereas in mixed stromal-smooth muscle tumors the dedifferentiation was yet not described. Here we present such a case of low-grade mixed stromal-smooth muscle tumor with dedifferentiation. The tumor occurred in 52-year...