PROBLEM TO BE SOLVED: To provide, in one aspect, a method for detecting and locating lung cancer, adrenal cancer, melanoma, colon cancer, colorectal cancer, ovarian cancer, prostate cancer, liver cancer, subcutaneous cancer, intestinal cancer, hepatocellular cancer, retinoblastoma, cervical cancer in a patient that has or is suspected of having cancer.SOLUTION: The method comprises the steps of: (a) administering a phospholipid ether analog to the subject; and (b) determining whether an organ suspected of having cancer of the subject retains a higher level of the analog than surrounding regions; where a higher retention region indicates detection and location of the cancer. In another aspect, the present invention provides a method for treating cancer in a subject. The present invention comprises administering an effective amount of molecules comprising a phospholipid ether analog.SELECTED DRAWING: Figure 1【課題】本発明は、ある態様において、癌である又はその疑いのある患者において、肺癌、副腎癌、黒色腫、結腸癌、結腸直腸癌、卵巣癌、前立腺癌、肝臓癌、皮下癌、腸癌、肝細胞癌、網膜芽腫、子宮けい癌を検出し、かつ、部位を特定する方法を提供する。【解決手段】当該方法は、以下のステップ:(a)リン脂質エーテル類似体を被験者に投与する;(b)癌があると疑われる当該被験者の器官が、周囲領域よりも高いレベルの当該類似体を保持するかかどうか測定する、を含み、ここで、より高い保持領域は癌の検出及び位置を示す。他の態様において、本発明は、被験者の癌の治療方法を提供する。本発明は、リン脂質エーテル類似体を含む分子の有効量の投与を含む。【選択図】図1