The 'lumpy-bumpy' or granular pattern of immunofluorescence in Post-Streptococcal Glomerulonephritis indicates:
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Correct answer: Immune complex deposition (Type III)
A granular pattern on immunofluorescence is characteristic of Type III hypersensitivity. It represents the random deposition of antigen-antibody complexes along the glomerular basement membrane or in the mesangium.
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