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Table 1 Hackett’s spleen size classification

From: The hyper-reactive malarial splenomegaly: a systematic review of the literature

Spleen grade Description of the spleen grade
0. Spleen not palpable even on deep inspiration.
I. Spleen palpable below costal margin, usually on deep inspiration.
II. Spleen palpable, but not beyond a horizontal line halfway between the costal margin and umbilicus, measured in a line dropped vertically from the left nipple.
III. Spleen palpable more than halfway to umbilicus, but not below a line horizontally running through it.
IV. Palpable below umbilicus but not below a horizontal line halfway between umbilicus and pubic symphysis.
V. Extending lower than class 4.