Spreading routes from neck to mediastinum according to
tracheotomy
Cervical necrotizing fasciitis with gas formation was shown in 13 (65%)
patients. Involved neck spaces with cellulitis or abscess were multiple
in all patients (Table 2). The most commonly involved neck space in DNM
was the pretracheal space in 18 (90%) patients (Fig. 1A). Both
pretracheal and retropharyngeal spaces were all involved in the
tracheotomy group. All neck spaces were more prevalent in the
tracheotomy group than in the non-tracheotomy group.