U01.02.032 Immunodeficiencies T-cell disorders
Analyze the clinical scenario step-by-step. Identify the patientโs age, types of infections (viral, fungal), associated features (hypocalcemia, congenital heart defects, facial anomalies), and lab findings (low T-cell count, low PTH). Use these key clues to connect the presentation to a developmental defect involving the pharyngeal pouches and determine the most likely underlying genetic abnormality.
Question tags 22q11 deletion, adaptive immunity, cell-mediated immunity, Congenital Heart Defects, DiGeorge syndrome, fungal infections, hypocalcemia, immune disorders, immunology, immunopathology, lymphocyte dysfunction, Medical genetics, microbiology, pediatric immunodeficiency, SCID, T-cell immunodeficiency, thymic aplasia, thymic defect, USMLE, USMLE Step 1, viral infections
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