A hydatidiform mole is a rare mass or growth that forms inside the uterus at the beginning of a pregnancy. It is a type of gestational trophoblastic disease (GTD).

A birthmark is a skin marking that is present at birth. Birthmarks include cafe-au-lait spots, moles, and mongolian spots. See also: Birthmarks - red Nevus sebaceous; Hairy nevus; Nevi; Mole; Cafe-au-

Choriocarcinoma is a quick-growing form of cancer that occurs in a woman's uterus (womb). The abnormal cells start in the tissue that would normally become the placenta, the organ that develops during

Skin self-exam means checking your own skin regularly for any abnormal growths or unusual changes. A skin self-exam helps find any suspicious skin problems early. The earlier skin cancer is diagnosed,

Melanoma is the most dangerous type of skin cancer. It is the leading cause of death from skin disease. It involves cells called melanocytes, which produce a skin pigment called melanin. Melanin is re

Skin cancer is the uncontrolled growth of abnormal skin cells. If left unchecked, these cancer cells can spread from the skin into other tissues and organs.

Hyperemesis gravidarum is extreme, persistent nausea and vomiting during pregnancy that may lead to dehydration. Nausea - persistent - in pregnancy; Vomiting - persistent - in pregnancy

Patchy skin color refers to areas of irregular skin coloring. Mottling or mottled skin refers specifically to blood vessel changes in the skin which cause a patchy appearance.