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.
Deep venous thrombosis is a clot within the deep veins of the leg. The blood clot causes pain and swelling of the calf. This is a concerning condition, because if the clot breaks loose, it can travel to the lung and become lodged there, blocking blood flow into the lung.