The most characteristic ultrasonographic feature of an angiomyolipoma is its echogenicity; however, angiomyolipomas may also cause acoustic shadowing. The echogenic appearance of the tumor is thought to be related to its fat content and the presence of multiple tissue interfaces within it.
Roy Lichtenstein. Roy Fox Lichtenstein (pronounced /ËlÉªktÉnËstaÉªn/; October 27, 1923 â September 29, 1997) was an American pop artist. During the 1960s, along with Andy Warhol, Jasper Johns, and James Rosenquist among others, he became a leading figure in the new art movement. His work defined the premise of pop art through parody.
Childhood. Roy Fox Lichtenstein was born in New York City in a family with a German-Jewish background. He grew up on the Upper West Side of Manhattan with his father Milton, a real-estate broker, his mother Beatrice, a homemaker, and his younger sister Renee.y the mid 1960s, Lichtenstein began creating large-scale murals, his first of which was produced in 1964 for the World's Fair in Flushing, Queens. Moving beyond figural depictions, Lichtenstein also broadened his use of Ben-Day dots and bold, solid colors to depict landscapes, as in Yellow Landscape (1965).