Clinical features and microsurgical management of rare tumors in the sellar region / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To investigate the clinical characteristics and microsurgical managements of rare tumors in the sellar region.</p><p><b>METHODS</b>Six rare cases of tumors in the sellar region treated by microsurgery from Jan 2000 to Jan 2010 were reviewed retrospectively. Subsequent treatments were according to the status of preoperative alpha fetal protein (AFP) and human chorionic gonadotropin (HCG) measurement as well as confirmed by histopathological examination in all six patients.</p><p><b>RESULTS</b>Total resection of the tumor was achieved in 2 cases and subtotal resection in 4 cases. Postoperative histopathology confirmed that the lesions were tumors in 5 cases and fungal pseudotumor in 1 case. Moreover, variety of histological types were observed in the present series, including leiomyosarcoma, malignant yolk sac tumor, mixed germ cell tumor, embryonal carcinoma, pilocytic astrocytoma and fungal pseudotumor, respectively. The serum levels of AFP and HCG were elevated to some extent in the patients with malignant yolk sac tumor, mixed germ cell tumor or embryonal carcinoma. Follow-up was conducted in all patients for 1 month to 3 years. The patients with malignant yolk sac tumor and embryonal carcinoma as well as leiomyosarcoma died in 5, 6, 10 months after operation, respectively. Subarachnoid hemorrhage occurred in the case of fungal pseudotumor at 2 months after surgery. The other two patients were surviving well.</p><p><b>CONCLUSIONS</b>Rare non-germinomatous malignant germ cell tumors are predominantly susceptible to the sellar region. Furthermore, High misdiagnosis rate and poor prognosis are characteristic in the present study. Dynamic AFP and HCG detection may play an important role in the diagnosis of those non-germinomatous malignant germ cell tumors located in the sellar region. The importance of awareness of the presence of such rare lesions in the sellar region is emphasized.</p>

Treatment of brain injured rats through transplanting amniotic-derived mesenchymal stem cells in different ways / 中南大学学报(医学版)

OBJECTIVE@#To compare the behavioral improvement to find the best transplantation approach for treating brain injury through transplanting amniotic-derived mesenchymal stem cells into brain injured rats in different ways.@*METHODS@#Eighty brain injured Wista rats were randomly divided into a control group with brain injury alone (n=20) and a treatment group(n=60) which were further evenly divided into Group A (transplanted through the vena caudalis), Group B (transplanted through the ventriculus cerebri lateralis), and Group C (transplanted through the injured brain area). Each group was transplanted with amniotic-derived esenchymal stem cells, and their therapeutic efficacy would be evaluated through the neurological severity score (NSS).@*RESULTS@#Compared with other groups, the behaviors of Group C had markedly improved. There was statistically significant difference in the 2 groups (P0.05).@*CONCLUSION@#Transplanting the amniotic-derived mesenchymal stem cells into the injured brain area may be effective for brain injury in rats.