PMC7737464_01
PMC7737464_02
Panel A (41/2 months of age): chest radiograph showing bilateral lung infiltrates and absent thymic shadow. Panel B (5 months of age): chest CT scan showing enlarged left axillary lymph node, measuring about 2 cm in diameter (arrowed).
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fig1
His chest radiographs showed bilateral infiltrations, and the thymus was not visible (Figure 1(a)). Neck, chest, and abdominal CT scans confirmed generalized lymphadenopathy, including his left axillary lymph nodes (Figure 1(b)).
The lymph node effaced and replaced by a sheet of histiocytes; lymph node remnant seen as scattered lymphocytes and small lymphoid aggregates (arrow). There are necrotic foci within the histiocytes sheet (upper half of the picture). Ziehl-Neelsen stain showing numerous acid-fast bacilli (the red box region). The acid-fast bacilli are red color rods.
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fig2
Excisional left axillary lymph node biopsy showed numerous acid-fast bacilli (AFB), consistent with tuberculous (TB) lymphadenitis (Figure 2).