[Chromosome 22q11.2 microdeletion and phenotype analysis of patients with non-syndromic tetralogy of Fallot].

Objective: To investigate the frequency and clinical phenotypes of 22q11.2 microdeletion in patients with non-syndromic tetralogy of Fallot (TOF).

Methods: Six-eight non-syndromic TOF patients (38 males and 30 females, aged 0-11 years) were selected and evaluated by history, physical examination and review of medical records.

True thymic hyperplasia in an infant.

True thymic hyperplasia is a very rare entity. We present an instance of idiopathic true massive thymic hyperplasia in a 9-month-old girl with a very large left-sided mediastinal mass noted on diagnostic imaging. Percutaneous biopsy revealed normal thymic tissue.