Question

absence of thumb is characteristic feature of

Answer 1

An absent thumb can have many associations. They include:

Fanconi anaemia (pancytopenia-dysmelia syndrome)Franceschetti syndromeHolt-Oram syndromephocomelia (e.g. thalidomide embryopathy)Poland syndrome (pectoral muscle aplasia and syndactyly)Rothmund-Thomson syndromeSeckel syndrome (bird-headed dwarfism)trisomy 18Yunis-Varón syndrome

Answer 2

Fanconi anaemia (pancytopenia-dysmelia syndrome)

Franceschetti syndrome

Holt-Oram syndrome

phocomelia (e.g. thalidomide embryopathy)

Poland syndrome (pectoral muscle aplasia and syndactyly)

Rothmund-Thomson syndrome

Seckel syndrome (bird-headed dwarfism)