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KD in a 31-year-old woman. Transverse CT scan shows 2 lymph nodes with necrotic foci. The larger one (arrow) has a single necrotic focus with a relatively indistinct margin, and the extent accounts for >70% (severe degree) of the lymph node. Perinodal infiltration is seen (arrowhead). The CTN and CTN/M were 43 HU and 0.7, respectively.
