Embodiments disclosed herein relate to treatment methods, diagnosis methods, drug efficacy evaluation methods and prognosis evaluation methods of lymphangioleiomyomatosis (LAM) and a disease associated with a mutation in a tuberous sclerosis complex (TSC) gene. The methods comprising analyses of the levels of lysophosphatidylcholine (LPC) in a biological sample of a subject, or comprising analyses of images of the location and signal intensity of isotope-labeled choline in the subject.
TREATMENT AND PROGNOSIS OF LYMPHANGIOLEIOMYOMATOSIS