A girl with a high and microbrachycephalic cranium (but without craniosynostosis), antimongoloid palpebral fissures, external strabismus, microsomy, a peculiarly shaped nose, soft tissue syndactyly in the right hand and both feet, and psychomotor retardation was found to have a deletion of chromosome 2 (q35----qter) and a Robertsonian translocation 13;14 inherited from her healthy father. The g...

We describe a patient with developmental delay, mild dysmorphic features, and monosomy of 7q35. Only one other patient with an interstitial deletion of this band has been previously reported. A review of clinical features of these two children did not show similarities in dysmorphic features. Reports of patients with other 7q interstitial deletions are listed.

We report on a newborn female patient with a de novo pure partial duplication of 7q. The clinical features are compared with those of 19 cases from the literature with pure partial duplication of different segments of 7q. Conventional cytogenetic investigation led to the diagnosis of duplication of bands q21.3 to q35. This was confirmed by chromosome painting and by fluorescence in situ hybridi...

The t(2;5)(p23;q35) was detected in 9 of the 18 cases of large-cell lymphoma with an abnormal karyotype among 115 children with large-cell lymphoma treated at St Jude Children's Research Hospital from 1975 to 1993. When the cases containing the t(2;5) were classified according to the National Cancer Institute Working Formulation, 7 were large-cell, immunoblastic and 2 were diffuse large cell; a...

In this paper, the investigators report a well documented case of malignant histiocytosis (MH) with a t(2;5)(p23;q35) translocation. A breakpoint in 5q35 appears to be specific, either for the disease or for a subclass of the disease. Additional cases of MH with cytogenetics are needed. This will help to determine if one class of MH or several subclasses can be defined by cytogenetic anomaly(ies).

Anaplastic large T-cell lymphoma (ALCL) is frequently associated with the t(2;5)(p23;q35). Here, we report a case of ALCL with an atypical translocation of t(2;5)(p24;q13) and other complex translocations. This complex abnormal karyotype may result in chemotherapy resistance and a poor outcome. Interestingly, a hypophyseal tumor was detected simultaneously by magnetic resonance imaging in this ...

In a chromosome study in childhood T-cell leukemia/lymphoma, we found t(7;11)(q35;p13) in 2 patients, t(7;14) (q35;q11) in one patient, and t(7;14)(p15;q32) in 1 patient. Southern blotting and in situ chromosomal hybridization studies in one patient with the t(7;11) demonstrated that both alleles of the T-cell antigen receptor beta-subunit gene (TCRB) were rearranged, and that one TCRB allele h...