Unusual occupational gastrointestinal and hepatic disorders.

Acute centrolobular necrosis, cancers related to occupational chemical exposures, and infectious hepatitis are widely recognized, but other occupational and environmental diseases of the gastrointestinal tract are underemphasized by comparison. This review explores the associations between workplace exposures and steatosis, increased liver microsomal activity, cholestatic liver injury, portal fibrosis and hepatic sclerosis, granulomatous liver disease, porphyria cutanea tarda, peptic ulcer disease, pancreatitis, gastroenteritis, celiac disease, and pneumatosis cystoides intestinalis.