What is the fine-grained topic of the following text: Thermography as a physiologic test, demonstrates heat patterns that are strongly indicative of breast abnormality, the test can detect subtle changes in breast temperature that indicate a variety of breast diseases and abnormalities and once abnormal heat patterns are detected in the breast, follow-up procedures including mammography are necessary to rule out or properly diagnose cancer and a host of other breast diseases such as fibrocystic syndrome, Pagets disease, etc. Only return the topic.
Thermography in detecting breast diseases and abnormalities