The Rare Presence of an Asymptomatic Os Sustentaculum in a Young Athlete.

The presence of an os sustentaculum bone is extremely rare. Given the scarcity of clinical literature reporting such a finding, the condition may be misdiagnosed as a fracture of the sustentaculum tali. We describe such an incident in a 16-year-old male athlete presenting for a recent ankle sprain with no other history of trauma or pain on the medial aspect of the ankle.

Dermal Discoloration Secondary to Triamcinolone Acetonide Injection Observed in Patients with Autoimmune Disorders.

Triamcinolone acetonide is a synthetic glucocorticoid used to treat numerous acute and chronic inflammatory conditions. The various side effects of this drug from parenteral administration are well documented in the literature. In this study, three patients present with a rare side effect of violaceous dermal pigmentation.