Today, medical imaging is widely used in clinical examinations, including ultrasound, X-ray, CT, MRI, etc. Many of the test results (diagnostic opinions) are frightening to patients or family members, but in fact, many cases do not need to be heeded. In fact, there are many cases that do not need to be taken into consideration. In particular, are there any problems found during the health checkup that require further examination? Please see the following description of several cases: 1. Hepatic hemangioma This is the most common in daily outpatient clinics, especially in health checkups. Hepatic cavernous hemangioma, or hemangioma for short, is the most common benign tumor of the liver and is almost always found by chance. They can range in size from a few millimeters to several centimeters and can be solitary or multiple. Their typical presentation on ultrasound is a strongly echogenic nodule, and such ultrasound findings are usually sufficient to indicate a hemangioma (except in cases of artificial misrepresentation). There are also atypical hemangiomas that are hypoechoic on ultrasound. For such hypoechoic nodules, further testing is needed to clarify. In the case of hepatic hemangiomas, they do not affect a person’s health, unless they are too large, such as a large hemangioma of about 10 cm, and are located on the surface of the liver, which can cause pressure on adjacent organs and can also rupture due to trauma. CT examinations, if done only as a plain scan, are not able to confirm the diagnosis of hemangioma. A more direct examination is to do MRI.2 A result such as a diagnosis of hemangioma of the cervical or thoracic spine or lumbar spine by MRI of the spine is basically ignored. Vertebral hemangiomas are very common in daily life and are benign tumors that generally do not affect health. It is only for particularly large vertebral hemangiomas, such as those that occupy almost the entire vertebral body, that treatment, i.e., filling with “bone cement”, is required to avoid compression fractures of the diseased vertebrae. 3. Liver or kidney cysts Liver or kidney cysts are also very common in daily life. Unless they are large cysts (particularly large cysts that require treatment due to compression symptoms), less large or small cysts generally do not require treatment. If it is indeed a cyst by ultrasound or CT, then there is nothing to worry or obsess about. However, sometimes tumor lesions that “behave like cysts” but are not actually cysts may be mistaken for cysts, which is rare and requires MRI examination. 4. CT or MRI findings of the brain: asymmetric ventricles, one side is large and the other side is small, this is a developmental abnormality and should be ignored. Arachnoid cysts, pineal cysts, vacuolated saddles, hyaline septal cavities, perivascular gaps, etc. in the brain should be disregarded as they are mostly congenital developmental abnormalities. 5.For more information about “cavernous infarction”, please refer to the article “Brain “cavernous infarction” and misconceptions” on our website.