On the right, the presence of the “black hole” sign announces the existence of the cavity.
The mucosa is edematized and the division spur has lost its edge, becoming blunt.
View of the entrance to the cavity
On the right, the presence of the “black hole” sign announces the existence of the cavity.
The mucosa is edematized and the division spur has lost its edge, becoming blunt.
View of the entrance to the cavity