Judge John Rodenberg issued the ruling Monday during a hearing on Daniel Hauser's case. Daniel has Hodgkin's lymphoma but resisted chemo, citing a preference for alternative treatments.
His attorney, Philip Elbert, says recent X-rays of Daniel's tumor show that the tumor is a white, see-through mass. Previous X-rays had shown a dense, black mass.
Elbert says Daniel has lost about 4.5 kilograms and sometimes doesn't feel like eating.
Prosecutors had argued the case should stay in court after Daniel and his mother, Colleen, fled to California last month. The judge ruled Daniel is still in need of child protection services.