Peritonitis is defined as inflammation of the peritoneum. The inflammatory response involves vasodilation, exudation of protein-rich fluid, cellular infiltration, pain and, chronically, formation of fibrous adhesion. The disease can be classified into primary and secondary cases.
It begins in the venous plexus along the medial side of the foot, and it runs up the medial side of the leg and knee, alongside the saphenous nerve. In the thigh, the long saphenous vein continues up the medial surface, accompanying the medial femoral cutaneous nerve.
The arterial feeders. for the foot are derived from dorsalis pedis artery. and its branches on the dorsal aspect, and by. the medial and lateral plantar artery and their. branches on the plantar aspect. The dorsalis pedis artery is the continuation of. anterior tibial artery. It begins on the anterior. surface of the ankle joint, and runs with the deep. peroneal nerve, deep to the inferior extensor. retinaculum and extensor hallucis brevis, to the.