This forum is for questions and support regarding neurology issues such as:
Alzheimer's Disease,
ALS,
Autism, Brain Cancer,
Cerebral Palsy, Chronic Pain,
Epilepsy,
Fibromyalgia, Headaches, MS, Neuralgia, Neuropathy, Parkinson's Disease, RSD, Sleep Disorders,
Stroke, Traumatic Brain Injury
Please do not let emotions interfere with your treatment. Now a days, the surgery has become minimally invasive. I would like you to read this article on why minimally invasive surgery is preferred. This article compares open surgery and minimally invasive surgery.
http://www.ncbi.nlm.nih.gov/pubmed/18297352?ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum
LDN will not help you much. Though it is a known to be useful in myasthenia, we are not sure how much it will help with a thymoma of 4 cm.
I hope you go through all the pros and cons and take a decision soon.
Regards