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159013 Pathology

A 12-year-old boy has a cough and earache for the past 2 days. He has a history of recurrent infections, including otitis media, diarrhea, and pneumonia. Physical examination shows an erythematous right tympanic membrane, a cleft palate, and murmur suggestive of congenital heart disease. A thoracic CT scan shows a small thymus. Results of laboratory studies suggest mild hypoparathyroidism. Which of the following diagnostic studies is most likely to be helpful in diagnosing this patient’s condition?

AAdenosine deaminase assay in lymphocytes
BBranched DNA assay for HIV-1 RNA level
CFISH analysis with a probe for chromosome 22q11.2
DLymph node biopsy
Pathology
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159015 Anatomy

An 8-day-old boy presents with a history of complete loss of breath at times and of turning blue on a number of occasions. If the baby is placed in an upright or sitting position, his breathing improves. Physical examination reveals an unusually flat stomach when the newborn is lying down; auscultation demonstrates no breath sounds on the left side of the thorax. What is the diagnosis?

APhysiological umbilical herniation
BEsophageal hiatal hernia
CTetralogy of Fallot
DCongenital diaphragmatic hernia
Anatomy
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