###Human: What is the reason for weight loss and hair fall after craniotomy surgery? ###Assistant: Hi. The biopsy report and MRI findings are suggesting astrocytoma which is kind of cancerous brain tumor. Post operation MRI is showing that the tumor is not fully removed in surgery. That usually happens in these kinds of tumors because it is sometimes not possible to remove the whole tumor. Please consult with a good radiation oncologist to decide radiotherapy if not yet given. Hair loss is because of Encorate. Restoring the symptoms should be taken seriously and a repeat MRI should be considered after consulting with the neurosurgeon.