As unScriptural as Mary's perpetual virginity is, the RC contention that she lacked Original Sin and rose bodily into heaven are truly mystifying and border on blasphemy, IMO.
From Wikipedia...
"According to Roman Catholic doctrine and the traditions of the Roman Catholic Church, the Blessed Virgin Mary (Mary, the mother of Jesus) "having completed the course of her earthly life, was assumed body and soul into heavenly glory." (Pope Pius XII, Munificentissimus Deus, November 1, 1950). This means that both Mary's soul and her physical body were transported into heaven. Mary's passage into heaven is called Assumptio Beatæ Mariæ Virginis (Assumption of the Blessed Virgin Mary) by Roman Catholics. This doctrine was dogmatically defined by Pope Pius XII on the 1st of November 1950."
You recently thanked Agrarian on showing you the difference between Orthodox and Latin Mariology. Agrarian nailed the differences exceedingly well. But he failed to mention to you (because it wasn't pertinent) that the Orthodox held far longer than our Catholic brethren that the Theotokos was assumed into heaven, body and soul. The difference in that respect is that some Roman Catholics believe she never died, which the Orthodox Church never proclaimed for all the good reasons outlined by Agrarian previously.