Aplasia/Hypoplasia involving the metacarpal bones +
Archibald's sign
Broad metacarpals +
Distal widening of metacarpals
Expanded metacarpals with widened medullary cavities
Flattened metacarpal heads
Fractured metacarpal bone of digit 1
Irregular metacarpals
Long metacarpals
Metacarpal diaphyseal endosteal sclerosis
Metacarpal osteolysis +
Metacarpal periosteal thickening
Metacarpal synostosis +
Proximal tapering of metacarpals +
Slender metacarpals
Supernumerary metacarpal bones +
Tapered metacarpals
Thin metacarpal cortices
Tubular metacarpal bones
Widened metacarpal shaft
Y-shaped metacarpals +
Y-shaped metacarpals are the result of a partial fusion of two metacarpal bones, with the two arms of the Y pointing in the distal direction. Y-shaped metacarpals may be seen in combination with polydactyly.