Acute cellular rejection following solid organ transplantation occurs-
*acute graft versus host disease occurs within days to weeks after allogenic bone marrow transplantation.Reference;Robbins and Cotran pathologic basis of disease South Asia edition.
Within minutes to hours of transplantation
Within 48 hours of transplantation
Between 5 and 30 days of transplantation
Beyound 30 days after transplantation
General pathology