<prompt> A 37-year-old man develops pulmonary hemorrhage and glomerulonephritis. Lung biopsy with immunofluorescence demonstrates IgG deposition along the basement membrane. These antibodies are most likely directed against which of the following types of collagen?Type IType IIType IIIType IV  <response>: Goodpasture syndrome Autoimmune disease Ceain domains of type IV collagen are intrinsic to the basement membranes of renal glomeruli and pulmonary alveoli. Resulting in necrotizing hemorrhagic interstitial pneumonitis and rapidly progressive glomerulonephritis. The characteristic linear pattern of immunoglobulin deposition usually IgG is the hallmark diagnostic 