Mammomonogamus

Mammomonogamus is a genus of parasitic nematode of the family Syngamidae that parasitises the gastrointestinal tract of cattle, sheep, goats, deer, cats, orangutans and elephants. It has rarely been found in humans when it has been assumed to be accidental. Cases have been reported from the Caribbean, China, Korea, Thailand, and Philippines.

Infestation with Mammomonogamus is termed syngamosis, syngamiasis, mammomonogamosis or mammomonogamiasis.

The most common species found to infest humans is M. laryngeus. In humans the worms have been most commonly found in the larynx, trachea or bronchi, but have been found in the duodenum. Diagnosis is made by recovering the worms on bronchoscopy or oesophagogastroduodenoscopy.