Biomedical subjects
Publications and source records attributed to L Palma.
A description of two cases of intraspinal hemangiopericytoma is given, which join the 30 reported to date. The clinical features of this tumor rarely found in the CNS are compared with those of the same oncotype found at other sites. Surgical treatment is necessary, accompanied by radiotherapy. Spinal tumor embolization preoperatively is of benefit.
Orbital pseudotumor is a chronic, idiopathic granuloma acting as an orbital expanding lesion. The importance of clinical features for a proper diagnosis is relevant. A subdivision in three subgroups is made taking in account surgical, pathological and CT-scan patterns. Therapeutic indications are given according to the follow-up of 29 cases.
In recent years, surgical treatment of cerebral gliomas has made significant technical advances (e.g. microsurgery and neuronavigation) and has also benefitted from improvement in diagnostic techniques and biopathology. Thanks to this progress, there has been a reduction in the surgical mortality and morbidity of highly malignant neoplasms such as glioblastoma multiforme and medulloblastoma, although there has not been any significant improvement in survival. On the other hand, for a specific group of circumscribed and resectable brain gliomas, modern neurosurgery is potentially curative in a high proportion of cases, even if the gliomas are located in deep and previously inaccessible brain regions. These "benign" variants of cerebral gliomas occur mainly in children and young adults, i.e., in subjects with a long life-expectancy. Astrocytoma, oligodendroglioma and ependymoma are a third group of cerebral gliomas for which modern neurosurgery offers interesting new possibilities.