Absolute polycythemia - ANSWER-excessive red blood cell production; a physiologic response resulting from increased erythropoietin secretion in response to chronic hypoxia or as a symptom of polycythemia vera.Absorption atelectasis - ANSWER-see Atelectasis.Acid maltase deficiency (glycogen storage disease type II or Pompe disease) - ANSWER-an autosomal recessive metabolic disorder that damages muscle and nerve cells throughout the body by an accumulation of glycogen in the lysosome attributable to deficiency of the lysosomal acid a-glucosidase enzyme. The buildup of glycogen causes progressive muscle weakness (myopathy) throughout the body and affects various body tissues, particularly in the heart, skeletal muscles, liver, and nervous system.Acne - ANSWER-a common skin disease characterized by pimples on the face, chest, and back. It occurs when the pores of the skin become clogged with oil, dead skin cells, and bacteria.Acne conglobate - ANSWER-severe cystic acne characterized by cystic lesions, abscesses, communicating sinuses, and thickened, nodular scars; usually does not affect the face.Acne rosacea - ANSWER-a chronic form of dermatitis of the face in which the middle portion of the face appears red with small red lines caused by dilation of capillaries.Acne vulgaris - ANSWER-an inflammatory eruption of the sebaceous follicles usually occurring on the face, upper back, and