CATCH 22 syndrome

Etymology
The salient features of DiGeorge syndrome can be summarized by the mnemonic CATCH 22 (an allusion to Catch-22, a 1961 novel by Joseph Heller):
 * Cardiac defects,
 * Abnormal facies,
 * Thymic aplasia,
 * Cleft palate,
 * Hypocalcemia/hypoparathyroidism, and
 * 22q11.2 deletion.