@entity1418 ( @entity1418 ) is a rare primary @entity5 that constitutes less than 1% of the @entity5 of bone, and involvement of the skull is very rare. We present a case of @entity1418 of the skull, presenting an @entity75 in a 43-yr-old @entity1 . She had a rapidly growing, tender mass in the right parietal region. A plain radiograph showed an @entity690 of the right parietal bone. Magnetic resonance imaging revealed that the lesion showed heterogeneous low signal intensity on T1-weighted images and slightly high signal intensity on T2-weighted images. No evidence of an extraosseous extension to the adjacent dura and soft tissue was found, and a wide excision of the parietal bone was performed. Histologically, the @entity5 was a typical @entity1418 displaying pleomorphic spindle cells in a storiform pattern. The results of immunohistochemical stainings revealed that the @entity5 cells were positive for @entity2277 , alpha-1-antitrypsin, and @entity876 , and negative for smooth muscle actin, @entity2281 protein, desmin, and @entity9171 . Three months later, a mainly cystic, recurrent mass was developed at the previously operated site. Before the resection, we first performed the percutaneous aspiration cytology, revealing diagnostic multinucleated pleomorphic cells. Thereafter, she had to receive repetitive resections of recurrent or residual lesions, and she died of postoperative @entity5422 two years after the first operation.

Primary intraosseous XXXX of the skull: a case report.

@entity1 :: ('9606', 'Species') :: ['woman'] @entity9171 :: ('4654', 'Gene') :: ['MyoD1'] @entity1418 :: ('MESH:D051677', 'Disease') :: ['Malignant fibrous histiocytoma', 'MFH', 'malignant fibrous histiocytoma'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'malignant tumors', 'neoplasm'] @entity75 :: ('MESH:D001927', 'Disease') :: ['intraosseous lesion'] @entity5422 :: ('MESH:D008590', 'Disease') :: ['meningoencephalitis'] @entity876 :: ('7157', 'Gene') :: ['p53'] @entity2277 :: ('7431', 'Gene') :: ['vimentin'] @entity690 :: ('MESH:D030981', 'Disease') :: ['osteolytic lesion'] @entity2281 :: ('6271', 'Gene') :: ['S100']
@entity1418 :: (MESH:D051677,Disease) :: ['malignant fibrous histiocytoma']
