Definition: Given an abstract of a paper, generate a title for this paper such that conveys the key focus of the paper.
Input: Abstract: 164 patients with early cancer of the lungs, i.e., without extrathoracic spread or distant metastasis, were examined. Subjective and objective characteristics of the pain were studied. A correlation was found between the location of the neoplasm, the location of the pain and the characteristics of the sensory changes. These observations may be a useful contribution to the early diagnosis of primary carcinomas of the lungs.

Pain in early cancer of the lungs.