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.
Groin lymph nodes get lympha from external urogenital organs and skin of the rectum so it is possible that this lymph node enlargement is caused by hemorrhoid which has gotten infected. Painful, movable lymph nodes with regular shapes are most likely caused by inflammation. However groin enlarged lymph node can indicate some cancerous process. That is why, it should not be neglected. It is also possible that this is not a lymph node, but a inguinal hernia. You can perform a simple test.