Biomedical subjects
Publications and source records attributed to B C Valentine.
Dermal melanocytes are generally most numerous in the sacral, dorsal hand, and dorsal foot. There is also a slight rise that often occurs toward the axial line of the trunk. The practitioner needs to be aware and take necessary measures to properly diagnose the blue nevus from other forms of pigmented skin lesion. The authors believe that surgical excision with proper pathologic follow-up is the preferred treatment.
The authors report an 18-year-old patient who sustained a two-part injury involving his right ankle. The result of this traumatic episode was a fracture/dislocation of the talus. An interesting aspect of this injury is that the body of the talus dislocated laterally, distal to the fibular malleolus. Closed reduction was attempted and subsequent open reduction with internal fixation was performed. The patient was followed for 9 months, during which time a series of radiographs was taken. Nine months postoperatively, Hawkins sign was negative indicative of avascular necrosis. In review of the literature, no fractures with lateral dislocations of this nature were found.