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  • Sinusitis: Inflammation of the paranasal sinuses that can cause fever, headache, nasal congestion, and purulent discharge.
  • Situs ambiguus: (synonyms - situs ambiguous, heterotaxy) A Latin term meaning abnormal distribution or placement of the chest and abdominal organs.
  • Situs Inversus Totalis: A Latin term meaning the reversed, mirror-image orientation of the inner organs.
  • Small Intestine: The upper portion of the intestine where digestion occurs and most nutrients are absorbed into the bloodstream, consisting of the duodenum, jejunum, and ileum.
  • Sputum: Mucus or phlegm coughed up and expelled from the respiratory tract.