Haemangiopericytoma(HPC) is a rare vascular tumor with borderline malignancy, considerable histological variability, and unpredictable clinical and biological behavior. HPC can present a diagnostic challenge because o...Haemangiopericytoma(HPC) is a rare vascular tumor with borderline malignancy, considerable histological variability, and unpredictable clinical and biological behavior. HPC can present a diagnostic challenge because of its indeterminate clinical, radiological, and pathological features. HPC generally presents in adulthood and is equally frequent in both sexes. HPC can arise in any site in the body as a slowly growing and painless mass. The precise cell type origin of HPC is uncertain. One third of HPCs occur in the head and neck areas. Exceptional cases of hemangioblastoma arising outside the head and neck areas have been reported, but little is known about their clinicopathologic and immunohistochemical features. This study reports on a case of a large sacro-anterior HPC in a 65-year-old male.展开更多
Purpose:Orbital haemangiopericytoma (HPC) is a rare tumor with great histological variability and unpredictable clinical and biological behavior.The precise cell type origin is uncertain. Method:A case report is provi...Purpose:Orbital haemangiopericytoma (HPC) is a rare tumor with great histological variability and unpredictable clinical and biological behavior.The precise cell type origin is uncertain. Method:A case report is provided. Results:A 24-year-old male patient visited an ophthalmologist because of proptosis, strabismus, and movement limitation of the right eye one year ago. These symptoms worsened rapidly. Histopathology,MRI methods and microscopy coil were applied to study the features of HPC.The tumor was removed and the histological examination revealed that it was a primary HPC of the orbit. Conclusion:MRI determined the size,location, circumscription, morphological detail, growth pattern, and relationship between masses and surrounding tissues.The genesis location of this HPC was rare,and its internal morphological characters were different from cases reported in the literature.The new type of microscope showed more details of tumor MR image characters objectively.展开更多
文摘Haemangiopericytoma(HPC) is a rare vascular tumor with borderline malignancy, considerable histological variability, and unpredictable clinical and biological behavior. HPC can present a diagnostic challenge because of its indeterminate clinical, radiological, and pathological features. HPC generally presents in adulthood and is equally frequent in both sexes. HPC can arise in any site in the body as a slowly growing and painless mass. The precise cell type origin of HPC is uncertain. One third of HPCs occur in the head and neck areas. Exceptional cases of hemangioblastoma arising outside the head and neck areas have been reported, but little is known about their clinicopathologic and immunohistochemical features. This study reports on a case of a large sacro-anterior HPC in a 65-year-old male.
文摘Purpose:Orbital haemangiopericytoma (HPC) is a rare tumor with great histological variability and unpredictable clinical and biological behavior.The precise cell type origin is uncertain. Method:A case report is provided. Results:A 24-year-old male patient visited an ophthalmologist because of proptosis, strabismus, and movement limitation of the right eye one year ago. These symptoms worsened rapidly. Histopathology,MRI methods and microscopy coil were applied to study the features of HPC.The tumor was removed and the histological examination revealed that it was a primary HPC of the orbit. Conclusion:MRI determined the size,location, circumscription, morphological detail, growth pattern, and relationship between masses and surrounding tissues.The genesis location of this HPC was rare,and its internal morphological characters were different from cases reported in the literature.The new type of microscope showed more details of tumor MR image characters objectively.
