Types of neuroendocrine tumors. Various types of neuroendocrine tumors can occur in many places in the body and grow differently. Many NETs first appear in the lungs or the gastrointestinal tract, including the stomach, pancreas, appendix, intestines, colon and rectum. NETs may also appear in the thymus, thyroid gland, adrenal gland and pituitary gland.
Ricin is a type of biological toxin that is predominantly derived from the bean of the castor plant. Log in to see link for more information. Ricin is a type of biological toxin that is predominantly derived from the bean of the castor plant. Log in to see link for more information.
What is ricin toxin? Ricin is a proteinic cytotoxin derived from the common castor bean, Ricinis communis. Recovered from the meal of castor beans in the castor oil making process, ricin toxin is â¦perhaps 1,000 fold less toxin that botulinum toxin. Ricin is most toxic if inhaled and least toxic if swallowed.