Hi and thanks fort the question,
the dark spot could indicate a variety of abnormalities. These could range from artifacts, things that do not really exist to tumours. Itis therefore interesting to do an ESR frist. A very high ESR or erythrocyte sedimentation rate
could suggest further investigations for spinal TB. Then blood calcium levels, alkaline phosphatase
. Elevated values for these enzymes indicate a bone tumour.
An abdominal ultrasound
and CT scan
and a chest X ray
could be important in ruling out any existent or spread tumour.
I suggest a consultation with an internist first or a neurosurgeon for further investigations,
Thanks and best regards,