focal appendicitis

fo·cal ap·pen·di·ci·tis

acute appendicitis involving only part of the appendix, sometimes at the site of, or distal to, an obstruction of the lumen.

fo·cal ap·pen·di·ci·tis

(fōkăl ă-pendi-sītis) Acute appendix pain involving only part of the appendix, sometimes at the site of, or distal to, an obstruction of the lumen.