Castleman disease must be distinguished from other disorders that can demonstrate Castleman-like lymph node features, including reactive lymph node hyperplasia, autoimmune disorders, and malignancies.
Relative humidity (abbreviated RH) is the ratio of the partial pressure of water vapor to the equilibrium vapor pressure of water at the same temperature. Relative humidity depends on temperature and the pressure of the system of interest.
Absolu â¦ te humidity then is the total amount of water vapor contained in the air regardless of temperature. Relative humidity is the ratio to the amount of water the air is able to hold at a given temperature compared to the amount of water vapor it currently has (its absolute humidity).bsolu â¦ te humidity then is the total amount of water vapor contained in the air regardless of temperature. Relative humidity is the ratio to the amount of water the air is able to hold at a given temperature compared to the amount of water vapor it currently has (its absolute humidity).