histogen. n. 1. (Botany) (formerly) any of three layers in an apical meristem that were thought to give rise to the different parts of the plant: the apical meristem is now regarded as comprising two layers. See corpus, tunica.a Regenerative Medicine company) and is on the Surgical Faculty for the Procedural Dermatology Fellowship at the University of California at Irvine, Dermatology Faculty, Western University/Pacific Hospital, Long Beach, California and Michigan State University, Dermatology Faculty.
People with fluid in the lungs will experience the following signs and symptoms. 1  Fatigue. 2  Breathing difficulties. 3  Weakness. Cough. 4  Grunting. Pale 5  skin. Restlessness.  Excessive sweating.
Symptoms include: 1  Coughing. 2  Cyanosis, a bluish color in the skin or the mucous membranes in the mouth or nose. 3  Difficult or labored breathing.  Difficult-to-treat asthma diagnosed in an 1  adult. Fatigue and general feeling of discomfort (malaise)  Frequent inflammation of the lungs (pneumonitis) or recurrent respiratory 1  infections. Shortness of breath.