Kartagener's Syndrome, also known as Primary Ciliary Dyskinesia (PCD), is a rare, genetically inherited disorder that affects the structure and function of cilia, which are microscopic, hair-like structures that line various tissues and organs. The syndrome is characterized by a triad of symptoms: chronic sinusitis, bronchiectasis, and situs inversus, where the major visceral organs are mirrored from their normal positions.