In a child with absent thumb, radial detion of wrist, bowing of forearm, which of the following investigation will not be useful?
Absent thumb present in Fanconi anemia diagnosed by bone marrow In TAR syndrome diagnosed by platelets count Holt Oram syndrome diagnosed by 2D ECHO (Absent thumb and radius associated with ASD)
Bone marrow examination
Karyotyping
Platelet count
2D ECHO
All India exam