Fig. 3
From: Experience in the management of sigmoid sinus thrombophlebitis secondary to middle ear cholesteatoma
a The patient's preoperative axial temporal bone CT shows bone destruction of the long pedicle of the anvil, with the air shadow around the sigmoid sinus shown by the arrow. b The patient's temporal bone CT was repeated 3 months after tympanoplasty. The reconstructed cartilage piece of the auricular cavity shown by the arrow established contact with the vestibular window and isolated in the middle tympanic cavity. c The patient's preoperative axial temporal bone CT with soft tissue filling of the eustachian tube bullae. d The middle ear cavity was restored to contain air 3 months after surgery, and the reconstructed external auditory canal was in good shape. The arrow shows the grafted fascia and the filled bone powder, and the fascia has survived