lipodystrophia progressiva /-distrō″fē·ə/ [Gk, lipos + dys, bad, trophe, nourishment; L, progredior, to go forth] , an abnormal accumulation of fat around the buttocks and thighs and a progressive, symmetric disappearance of subcutaneous fat from areas above the pelvis and on the face. Also called lipomatosis atrophicans.