del(7)(p11-15) solely

Complete or partial loss of chromosome 7 is a recurrent cytogenetic abnormality that may be observed in both de novo and therapy-related hematopoietic disorders. It predominantly presents as monosomy 7 or deletion of the long arm of chromosome 7, often associated with an unfavorable prognosis. Deletions of the short arm of chromosome 7, originated from either a terminal or an interstitial deletion are less frequent and their pathological significance is less well characterized.