KROK 1 2020 – Question 122 · KROK (Medicine) · Pathomorphology

A man for a long time was suffering from hemoblastosis. Autopsy of the body revealed brown color of the bone marrow, spleen, liver, and lymph nodes. Perls histochemical reaction was performed. It was determined that reticular, endothelial, and histiocytic elements of the affected organs contain blue granules. What pigment was detected using the Perls histochemical reaction?

  1. A. Bilirubin
  2. B. Hemosiderin
  3. C. Hematoidin
  4. D. Hematoporphyrin
  5. E. -
Hint

Ask which chemical element the Perls reaction is designed to reveal, then decide which of these pigments actually contains that element.

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