→Sometimes, the thrombosed external hemorrhoids may become ulcerated or rupture (Figs.
9.
2 and 9.
3).
Fig.
9.
1 Thrombosed external hemorrhoids Fig.
9.
2 Ulcerated external hemorrhoids 9 Lasers in External and Complicated Internal Hemorrhoids 119 Fig.
9.
3 Ruptured external hemorrhoids Fig.
9.
4 Elliptical incision for the thrombosed hemorrhoid Some Interesting Facts from Literature Thrombosis of the inferior hemorrhoidal plexus is often seen as a “perianal hematoma.