Synovial Angioma, also known as hemangioma of synovium, is related to klebsiella pneumonia and critical illness polyneuropathy, and has symptoms including pain An important gene associated with Synovial Angioma is KCNIP4 (Potassium Voltage-Gated Channel Interacting Protein 4), and among its related pathways/superpathways are Response to elevated platelet cytosolic Ca2+ and Collagen chain trimerization.