Gastroenterological diagnostics

	Gastroscopy
	Anoscopy – examination of anus, anal canal, and lower rectum using a speculum.
	Rectoscopy – examination of rectum using a speculum,
	Rectoromanoscopy – rectoscopy and sigmoidoscopy,
	Sigmoidoscopy – examination of sigmoid using a speculum,
	Scolonoscopy – examination of large intestine using a speculum.