The retrovisceral space is divided into the retropharyngeal space and the danger space by the alar fascia. It is of particular clinical importance because it is a main route by which oropharyngeal infections can spread into the mediastinum.
Some sources say the retrovisceral space is the same as the retropharyngeal space.[1]
Other sources say that the retrovisceral space is "continuous superiorly" with the retropharyngeal space.[2]
References
^Advanced Therapy in Thoracic Surgery. pmph usa. 2005. p. 442. ISBN1-55009-080-1.
^Moxham, Bernard J.; Langdon, John W. (2002). Surgical Management of the Infratemporal Fossa. Informa Healthcare. p. 89. ISBN1-899066-79-9.