Actinic keratosis (AK) (also called solar keratosis or sun spots ) is a common precancerous skin condition caused by excessive exposure to ultraviolet light. Skin cancer â the abnormal growth of skin cells â most often develops on skin exposed to the sun.
1 A rare cause of axillary swelling may be breast cancer or lymphoma. 2  The lymph nodes in the groin (femoral or inguinal lymph nodes) may swell from an injury or infection in the foot, leg, groin, or genitals.3  In rare cases, testicular cancer, lymphoma, or melanoma may cause a lump in this area. A rare cause of axillary swelling may be breast cancer or lymphoma. 2  The lymph nodes in the groin (femoral or inguinal lymph nodes) may swell from an injury or infection in the foot, leg, groin, or genitals.
Other possible causes of swollen lymph nodes. Cuts, burns, skin infections, rashes and insect bites may cause lymph nodes to get larger. Swollen lymph nodes on the front of the neck could mean your child has a cold or throat infection. Swollen lymph nodes in the groin could mean your child has an injury near their lower abdomen or legs. Swollen lymph nodes in the armpit could mean your child has an injury near their arms or upper chest. Swollen lymph nodes on the back of the neck could mean your child has an injury on their scalp. How to treat side effects of swollen lymph nodes