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Updated: Aug 25, 2026

Simultaneous Quantification of T-Cell Receptor Excision Circles (TRECs) and K-Deleting Recombination Excision Circles (KRECs) by Real-time PCR
Published on: December 6, 2014
Primary immunodeficiencies
1Dept of Otolaryngology-Head & Neck Surgery, Tulane Univ Medical Center, New Orleans.
Abstract:
Primary immunodeficiencies are rare immune system disorders that present with recurrent and chronic infections of the head and neck. Otitis media, sinusitis, and upper respiratory tract infections develop frequently and present in early childhood. The purpose of this report is to classify and define the primary immunodeficiencies as well as to examine the clinical manifestations, evaluation, and treatment of these disorders.
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