Follow-Up MR Imaging for Cerebral Sparganosis

The recent article on follow-up MR imaging for cerebral sparganosis is interesting.¹ Li et al noted, “Migration is a notable feature of cerebral sparganosis.” This finding is quite interesting. Due to its basic nature, sparganosis is usually a chronic localized disease. According to a large series from Thailand, no observation of cerebral migration was noted.² The “tunnel” sign is a new finding that was recently reported, but there has been no confirmation on pathology.³ The question is whether the cases are actual sparganosis with confirmed pathology or whether there is any additional co-occurrence of another migrating cerebral parasitic disease such as gnathostomiasis.