The right lung had fluid; booster; passed out; had spread to his bones so fast; endocrine cancer; Lung cancer; hurt arm; mass; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). A 77 year-old male patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE), administered in arm right, administration date 13Oct2021 (Lot number: FF2590) at the age of 77 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "Dialysis", start date: 18Oct2021, stop date: 22Nov2021; "back aches" (unspecified if ongoing). There were no concomitant medications. Vaccination history included: Bnt162b2 (1st dose, right arm, Lot: EL9265), administration date: 06Feb2021, when the patient was 76 years old, for Covid-19 Immunization; Bnt162b2 (2nd dose, right arm, Lot: EM9810), administration date: 23Feb2021, when the patient was 76 years old, for Covid-19 Immunization, reaction(s): "Inappropriate schedule of vaccine administered". The following information was reported: IMMUNISATION (death, hospitalization, medically significant) with onset 13Oct2021, outcome "fatal", described as "booster"; ENDOCRINE NEOPLASM MALIGNANT (death, medically significant) with onset 18Nov2021, outcome "fatal", described as "endocrine cancer"; LUNG NEOPLASM MALIGNANT (death, medically significant) with onset 18Nov2021, outcome "fatal", described as "Lung cancer"; PULMONARY OEDEMA (hospitalization, medically significant) with onset Nov2021, outcome "unknown", described as "The right lung had fluid"; LOSS OF CONSCIOUSNESS (hospitalization, medically significant) with onset Nov2021, outcome "unknown", described as "passed out"; NEOPLASM PROGRESSION (non-serious), outcome "unknown", described as "had spread to his bones so fast"; PAIN IN EXTREMITY (non-serious) with onset Nov2021, outcome "recovered" (Nov2021), described as "hurt arm"; MASS (non-serious) with onset Nov2021, outcome "unknown", described as "mass". The patient was hospitalized for loss of consciousness (start date: 14Nov2021, discharge date: 17Nov2021, hospitalization duration: 3 day(s)). The events "endocrine cancer", "lung cancer", "the right lung had fluid", "passed out", "had spread to his bones so fast" and "mass" were evaluated at the emergency room visit. The patient underwent the following laboratory tests and procedures: amniocentesis: unknown results. Therapeutic measures were taken as a result of pain in extremity. The patient date of death was 22Nov2021. The reported cause of death was neoplasm malignant, lung neoplasm malignant. No autopsy was performed. Clinical course reported as: consumer reported husband just passed away from endocrine cancer and she thought it was because of the booster shot, he didn't have it a year. Consumer stated his hurt arm, this would last 3 days and was treated with Tylenol. After the booster shot he passed out and was taken to the emergency room on 14Nov2021, admitted and then discharged after 3 days; they didn't know what was wrong. Relevant Tests: amniocenteses on lung while in the hospital but the date was unknown. The right lung had fluid and there was a mass. The doctors didn't know how it happened so fast and had spread to his bones so fast. There was nothing in his records to show he had cancer. Patient passed away on 22Nov2021 from endocrine and lung cancer, he was diagnosed 18Nov2021.; Reported Cause(s) of Death: lung cancer; endocrine cancer