Eicosanoid Biosynthetic Pathways    Eicosanoid Metabolism - General overview, incomplete.  5-Lipoxygenase Pathway - The complete pathway.  12-Lipoxygenase Pathway - The complete pathway.  15-Lipoxygenase Pathway - The complete pathway.  Cytochrome P-450 Pathway - The complete pathway.  Cyclooxygenase Pathway (1) - PGD2, PGE2, PGF2a, and derivatives.  Cyclooxygenase Pathway (2) - Prostacyclin, thromboxane, and HHT.  Biosynthesis of polyunsaturated fatty acids - Elongation & desaturation.      Chemical Structures    Unsaturated Fatty Acids - Double bonds of fatty acids as shown by class.  Pyrrophenone - Selective cPLA2a inhibitor.                         ...