In summary, the studies demonstrated great potential towards automating grading gliomas by employing tumour heterogeneity measures on DTI and DKI parameters.

Choriocarcinoma is the most malignant tumour of gestational trophoblastic origin. Most ovarian choriocarcinomas are gestational in origin and usually metastasize to the ovary from uterine or tubal choriocarcinoma. Non gestational choriocarcinoma (NGOC) of the ovary is exceedingly rare and usually seen along with other germ cell tumors. Non gestational choriocarcinoma has been found to be resistant to single-agent chemotherapy and has a worse prognosis than gestational choriocarcinoma. We are reporting long term follow up of published rare case of pure non gestational ovarian choriocarcinoma (NGOC) with concurrent metastases to the spleen and adrenal glands, who developed a delayed solitary brain metastases, two years after completion of primary treatment. Surgery along with triple agent chemotherapy and radiotherapy was found to give good remission in this aggressive disease.

Tuberculous spinal arachnoiditis involving cauda equina is rare. A patient with lumbar tuberculous arachnoiditis in the absence of both vertebral and meningeal tuberculosis, which was mimicking spinal intradural extramedullary tumor is described here. Diagnosis was made based on intraoperative findings and was confirmed by histopathology. Surgical decompression along with a combination of steroid and antitubercular therapy resulted in a good outcome. At 3 months follow-up, the patient regained bladder control and was able to walk with support. Clinical features, magnetic resonance imaging, and intraoperative findings are described. Pathology and the relevant literature are discussed. Based on the patient's clinical and radiologic findings, it was believed that the patient had a conus cauda tumor and was operated on. Histologic examination of the mass revealed tuberculoma. Surgical decompression followed by antituberculosis medication resulted in good outcome. Hence tuberculous arachnoiditis should be considered in differential diagnosis of conus cauda tumors.

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