Actinic keratoses that develop on the lips are referred to as actinic cheilitis. The clinical appearance of an actinic keratosis is that of a small (several millimeters), red scaly papule or plaque, with induration and thickening of the epidermis. There may be associated erythema.
Blood Clots. A blood clot needs to be considered as a cause of calf pain, especially when the calf pain is not the immediate result of an injury. Blood clots can form is the deep veins of the leg, causing a blockage in circulation. This may cause swelling and pain in the calf.
1 Baker's Cyst: A Baker's cyst is not a true cyst. Rather, it is a collection of knee-joint fluid that has pooled in the back of the knee. 2  Blood Clots: A blood clot needs to be considered as a cause of calf pain, especially when the calf pain is not the immediate result of an injury. Blood clots can form in the deep veins of the leg, causing a blockage in circulation. This may cause swelling and pain in the calf. Blood clots are more common in the days and weeks after injuries and surgical procedures. Knowing if you have a blood clot is important. Without treatment, the clot can travel to the lungs, causing difficulty breathing. Leg Cramps: Cramps in the leg muscles are a common cause of calf pain.