[Analysis of misdiagnosis causes of suprasellar arachnoid cysts].

Objective: To investigate the causes of misdiagnosis of suprasellar arachnoid cysts, analyze its characteristics and put forward the diagnostic basis and differential points. Methods: The clinical data fo 97 cases of suprasellar arachnoid cysts diagnosed and treated in the neurosurgery department of Beijing Tiantan Hospital and Hebei General Hospital from March 2015 to March 2019 were analyzed retrospectively. All patients underwent CT and MRI scans with obstructive hydrocephalus. 13 cases were misdiagnosed, including 7 males and 6 females. First visit age 1-31 years old, with an average age of 6.3 years. There were 10 patients younger than 6 years old. The remaining 15-year-old patients, 31-year-old patients and 26-year-old patients each have one case. 11 cases were misdiagnosed as obstructive hydrocephalus, 2 cases as cystic craniopharyngioma. Results: 13 cases were misdiagnosed and mistreated, 11 cases were treated with intraventricular and abdominal shunt, 9 cases were treated with neuroendoscopy and recovered well. One cases of intracranial hematomas underwent craniotomy again, the hematomas were removed again and the bone slise were decompressed. One case had fissured stable after shunt. There were no operative deaths and no complications in this group. After endoscopic reoperation, CT and/or MRI scans showed that the ventricle narrowed in varying degrees, some of them returned to normal size and the flow of cerebrospinal fluid (cerebrospinal fluid) was unobstruct at the end of magnetic resonance cerebrospinal fluid angiography (MRI) fistula after endoscopic reoperation. Conclusions: The incidence of suprasellar arachnoid cysts is low, it is rare in clinic and it is easy to misdiagnose and mistreate. At present, it is recognized that the best treatment methods are partial resection of endoscope cyst wall, cyst ventricle fistula and third ventricle floor fisthla.

[Summary and expectation of the role of GnRHa in the treatment of breast cancer].

Gonadotropin-releasing-hormone analogues (GnRHa) are widely used in the treatment of premenopausal breast cancer. The anti-tumor effect of GnRHa is similar to that of surgical castration or chemotherapy, through reversibly inhibiting ovarian function and downregulating the estrogen level in premenopausal female. At the same time, GnRHa can protect the ovarian function, avoiding premature ovarian failure. Also GnRHa can reduce the breast density and endometrial thickness, as a result of which GnRHa may be used to prevent breast cancer in the higher risk population and promote quality of life in breast cancer patients. We here review the clinical roles and research progress of GnRHa in breast cancer.

An audit of outcomes in colorectal cancer in China.

AIM: This study was designed to analyses the correlation between the extent of lymph node excision and the prognosis of colorectal cancer and to discuss the clinical significance of excision of lymph nodes adjacent to mesenteric artery pedicle. METHODS: A total of 1409 patients with colorectal cancer who had the primary radical operation in our hospital during 1985 to 2000 was analyzed in this study. They were divided into two groups according to whether undergone an excision of lymph nodes adjacent to mesenteric artery pedicle. There were 857 patients in the excision group and 552 patients in the non-excision group. Comparison of prognoses was based on the follow-up results. RESULTS: The 1-year, 3-year and 5-year overall survival rates of the excision group were 90%, 81% and 77%, while those of the non-excision group were 91%, 84% and 79%, respectively. The 1-year, 3-year and 5-year tumor-free survival rates of excision group were 90%, 79% and 75%, while those of the non-excision group were 90%, 83% and 76%. Kaplan-Meier analysis did not show any difference in overall survival rate or tumor-free survival rate between these two groups (P>0.05). After follow-up of 12 to 289 months there were 42 cases of local recurrence and 79 cases of metastases in the excision group. In the non-excision group local recurrence occurred in 30 cases and 60 patients had metastases. There was no difference in the rates of local recurrence and metastasis between these two groups. Multivariate correlation analyses showed that the excision of lymph nodes adjacent to mesenteric artery pedicle was not statistically correlated to recurrence, metastasis and survival time after radical operation of colorectal cancer. CONCLUSION: In radical operation of colorectal cancer it is not necessary to perform excision of lymph nodes adjacent to mesenteric artery pedicle which is not correlated to prognosis.