In medicine or biology, a<unk>  is an outpouching of a hollow (or a fluid-filled) structure in the body. Depending upon which layers of the structure are involved, diverticula are described as being either true or false. In medicine, the term usually implies the structure is not normally present, but in embryology, the term is used for some normal structures arising from others, as for instance the thyroid<unk> , which arises from the tongue. The word comes from Latin<unk> , "bypath" or "byway".
Diverticulum
Anal fissure
Sigmoidocele
Devon colic
Volvulus
Enterocele
Perianal hematoma
Proctocolitis