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(a) PA radiograph hand depicting a lunate-triquetrum coalition with a very subtle cleft between the 2 bones distally. The trapezium and trapezoid may have a partial coalition as well. (b) PA radiograph demonstrates a capitate-hamate coalition. (c) PA radiograph with multiple carpal coalitions, including capitate-hamate and scaphoid-trapezium.
Note. PA = posteroanterior.
