Edema of the mucous cells of the latticed maze
X-ray diagnosis of sinusitis - see Sinusitis. In the catarrhal frontal view, a frontal sinus band is defined in the frontal sinus as a result of swelling of the mucous membrane or parietal semicircular shadows during swelling (Figures 2, 1). The effusion in the form of a horizontal level (Figures 2, 2) is determined in the picture produced in the standing patient position. With a chronic fibrous front, inhomogeneous shading of the sinus is observed due to fibrous cords, polyps and granulations. Pristenochnye shadow stratifications are a consequence of hyperplastic frontitis. The exacerbation in the phase of effusion of this form of the frontitis differs in that the level or parabolic distribution of the upper boundary of the liquid does not reach the inner edge of the external sinus wall due to thickening of the mucosa (Figure 3). Etmoidites are characterized by shading of the lattice maze cells structure. The sphenoiditis in the radiographic image looks the same as the frontitis. Inflammatory changes in the main sinuses are clearly visible in pictures taken in the position of the patient standing and lying with the mouth open.
Fig. 2. The catarrhal frontal. Edema of the mucosa of the upper wall of the frontal sinus on the right and lower medial walls on the left (1), between the latter limited effusion with horizontal level (2); shading of the posterior cells of the latticed maze on the left; a large retention cyst in the left maxillary sinus (3).
Fig. 3. Exacerbation of chronic sinitis: parietal shading in the left frontal sinus and a large amount of effusion (1); shading cells of the latticed labyrinth and pronounced edema (2) of the mucosa of the maxillary sinus on the same side.
Retinal cysts of the maxillary and frontal sinusesare revealed by the presence of a semicircular, usually single, shadow with clear and even contours, more often on the lower-outer wall of the maxillary (Figure 2, 3) or on the lower medial wall of the frontal sinus. The cyst filling the sinus gives a uniform shading, but at the same time an increase in the sinus is revealed, mainly due to the outer-posterior its walls.
When the mucocele of the frontal sinus is detecteddisplacement of the interfrontal septum in the opposite direction, expansion of the bone boundaries of the affected sinus with smoothing and straightening of its upper and outer boundaries. Because of the thinning of the walls of the sinus, it seems transparent. Usually one can see the involvement of the latticed labyrinth in the process. Osteomas of the sinuses are characterized by the presence of irregular rounded formations, clearly visible on the background of the sinus and having smooth smooth contours, the shadow differs in great intensity.
For malignant tumors of the paranasal sinusesnose is characterized by destructive changes in bone walls, infiltrating growth and the presence of rhinological, dental, ophthalmic or neurologic symptoms.