Egyptian antiquities experts were poised to announce Wednesday what is billed here as the top archaeological discovery since the 1922 find of King Tut's tomb - that a mummy housed in the Cairo Museum is actually that of Queen Hatshepsut, a woman ruler who called herself a Pharaoh. Hatshepsut was known for dressing like a man and wearing a false beard. During her famed 18th Dynasty rule, she wielded more power than Cleopatra or Nefertiti. But when her rule ended, all traces of her mysteriously disappeared, including her mummy. The mummy in the Cairo Museum was long believed to have been that of Hatshepsut's wet nurse Sitre-In, but recent X-ray and DNA analysis has convinced Egyptian archaeologists that it is in fact the mummy of the Pharaoh queen.