Background: Despite the availability of antibiotics deep neck space infections with anaerobic germs (Ludwig's angina) still carry the potential for significant morbidity and mortality with delayed treatment. Usually, odontogenic infections with involvement of the submandibular space are the source of deep neck space infections in adults, whereas in the pediatric population the most common cause is acute tonsillitis with involvement of the peritonsillar space. During the second half of this century intravenous drug abusers appeared as a new group of patients at risk for deep neck space infections. When peripheral veins sclerosis the addicts feel it necessary to either inject subcutaneously or use the major vessels of the neck and groin. Intravenous drug abusers injecting the major vessels of the neck risk delayed diagnosis because of dissimulation of their injection practices. Dangerous complications of deep neck space infections may be the result.
Case: We report a clinical case with delayed diagnosis and fatal outcome.
Conclusion: Intravenous drug abuse is a rare cause for deep neck space infections but should be considered when swelling of the neck soft tissue of uncertain cause is presented. The search for the diagnose should not keep from taking quick therapeutic steps.