Iselin's disease: a case presentation of nonunion and review of the differential diagnosis.

The confusing pathology of the proximal fifth metatarsal can make Iselin's disease difficult to distinguish from Jones', avulsion, or stress fractures, or os vesalianum. While lselin's disease appears to be rare due to the scarcity of cases in the medical literature, this may be due to misdiagnosis. The case report discusses the course of treatment for a young male with Iselin's disease that developed into a nonunion. The differentiating factors of the above-mentioned fractures are discussed.