Hi Dear !! Thanks for your query to HCM .
Read and reviewed your query and health concerns.
IN the given situation, You seems to have suffered from-Hand edema with repeat Contusion
As fingers and thumb were normal, a missing knuckle today is due to Hand edema-post repeat trauma and does not seem to be from Missing Knuckle.
Check with Orthopedic Surgeon and check -X-ray of hand,knuckles- would fix the exact diagnosis.
According to the tissue trauma-needful treatment with supporting cast with anti-inflammatory medicines and if need be antibiotics would take care of the bruising / post traumatic hand edema in your case.
Work up on above lines suggested, would help in resolving the issues,in your specific case.
Many other causes accompanying, need to be ruled out in planning further care in your case.Second opinion
with attending GI- Surgeon would resolve your health .
issues in time to come.
Hope this would help you to plan further of this complex illness of yours.
If need be, update any health issue 24 x 7 by a direct question to ME, at following HCM link-http://doctor.healthcaremagic.com/Funnel?page=askDoctorDirectly&docId=70229
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Wishing Good Healthy Life in time to come!!
Senior Surgical Specialist