Zodiac Zodiac The zodiac is an area of the sky that extends approximately 8° north or south (as measured in celestial latitude) of the ecliptic, the apparent path of the Sun across the celestial sphere over the course of the year. The paths of the Moon and visible planets are also within the belt of the zodiac. In Western astrology, and formerly astronomy, the zodiac is divided into twelve signs, each occupying 30° of celestial longitude and roughly corresponding to the constellations Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius and Pisces. The twelve astrological signs form a
Trousseau sign of malignancy lung cancer and Trousseau's syndrome can be an early sign of cancer sometimes appearing months to years before the tumor would be otherwise detected. Heparin therapy is recommended to prevent future clots. The Trousseau sign of malignancy should not be confused with the Trousseau sign of latent tetany caused by low levels of calcium in the blood. Armand Trousseau first described this finding in the 1860s; he later found the same sign in himself, was subsequently diagnosed with gastric cancer and died soon thereafter. Trousseau presciently attributed thromboembolism in malignancy to changes in blood composition rather than local inflammatory or