Presentation
Work up for growth retard.
Patient Data
Age: 12 years
Gender: Male
From the case:
Positive metacarpal sign
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/109226/annotated_viewer_json?lang=us"}
There is mild brachymetacarpia of the fourth ray. The phalanges are typically not hypoplastic.
Case Discussion
Hand x-rays readily identify the abnormality and can be assessed by drawing a line along the heads of the 4th and 5th metacarpals. If this line intersects the head of the 3rd metacarpal then shortening is deemed to be present, known as a positive metacarpal sign.
It is important to note that a positive sign can be seen in up to 10% of normal individuals.
Unable to process the form. Check for errors and try again.