<prompt> Which of the following is associated with hypersensitivity pneumonitis -SilicosisAsbestosisByssinosisBerylliosis  <response>: Hypersensitivity pneumonitis Hypersensitivity pneumonitis describes a spectrum of immunologically mediated, predominantly interstitial lung disorders caused by intense, often prolonged exposure to inhaled organic dust and related occupational antigens.Etiology: Inhalation of organic dust, most commonly spores of thermophilic fungi.Depending on the occupation or exposure of specific antigen numerous names have been given to hypersensitivity pneumonitis.Farmers lung Thermophilic actinomycetes on mouldy hay or grain dust.Pigeon breeders lung Proteins from serum, excreta or feathers of the birds.Air conditioner lung or Humidifier lung Thermophilic bacteria in heated water reservoirs.Bagassosis Sugarcane bagasseByssinosis Cotton dustMaple-bark disease Mouldy maple barkMushroom-workers lung Mushroom compost dustSilo-fillers disease Toxic fumes of NO N2O due to fermentation of silage 