1 In 1990, Barack Obama was elected as the first black president of the Harvard Law Review. 2  Obama, who graduated from HLS in 1991, would later represent Illinois in the U.S Senate, and in 2008 would become the 44 th President of the United States, and the first African-American president.
Most cancers in the lung are carcinomas-cancers of epithelial cells. The top pair of images shows the normal epithelium of the bronchi. This photomicrograph is greatly enlarged. The next three pairs of images show three successive stages of abnormal changes in the bronchial epithelium commonly found in smokers.
Adenocarcinoma is a cancer originating in glandular tissue. The tissues affected are part of a larger tissue category known as epithelial. Epithelial tissues line skin, glands, cavities of organs etc. This epithelium comes from the ectoderm, endoderm and mesoderm in the fetus.he leading cancer of the colon is adenocarcinoma, and adenocarcinomas are extremely common in the lungs. Other organs that may be affected by adenocarcinoma include: 1  the cervix. 2  pancreas.