Dermatoscope may allay concern

SUBUNGUAL haematomas at times can be worrying for melanoma. Patients may be expected to remember hitting their thumb, but often they can’t remember any injury to the toenail.

The subungual haematoma will slowly grow out but, as toenails and the thumb nail grow slowly over 6–12 months, initially this may not be obvious.

The advancing edge of a haematoma will show nail ridge streaking as in this case (above).

Using a dermatoscope, small round blobs of blood can be seen at the nail fold edge proximally and will

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