Immunodeficiency Disorders — MCQs

In primary immune deficiency, the following plasma protein fraction can be reduced:

Which of the following statements about Wiskott-Aldrich syndrome is false?

A 6-month-old male infant presents with recurrent severe bacterial infections with encapsulated organisms (Streptococcus pneumoniae and Haemophilus influenzae). Laboratory findings reveal profound deficiency of all immunoglobulin classes (IgG, IgA, IgM) with absent mature B cells in peripheral blood. The most likely diagnosis is:

t(2,8) is associated with:

Which of the following statements about MALToma is true?

Which of the following genetic syndromes are associated with brain tumours? 1. Neurofibromatosis type 1 2. Neurofibromatosis type 2 3. Tuberous sclerosis 4. Wiskott-Aldrich syndrome Select the answer using the code given below.

A 27-year-old man has surgery for a testicular mass. Histologic sections reveal the mass to be a testicular yolk sac tumor. Which of the substances listed below is most likely to be increased in this patient's serum?

A 30-year-old male presents with rapidly progressive renal failure over 3 weeks, haematuria, and red cell casts in urine. Serum creatinine has risen from 1.2 to 7.8 mg/dL within one month. ANCA is positive. The renal biopsy is shown in Image 3. Which of the following statements best describes the cellular composition and origin of the lesion most prominently seen in this biopsy?

Secondary amyloidosis complicates which of the following conditions?

Hyperacute rejection is due to which of the following mechanisms?