disease of bone – Paget's disease of the nipple – PALA – palatine uvula – palliative care – palliative therapy – Palmar plantar erythrodysesthesia – pamidronate – Pancoast's tumor – pancreatectomy – pancreatic cancer – pancreatic duct – pancreatic enzyme – pancreatic juice – pancreatitis – PAP, same as Pap smear – Pap smear – Pap test, same as Pap smear – papillary serous carcinoma – papillary thyroid cancer – papillary tumor – papilledema – paracentesis – parageusia – paramyxovirus – paraneoplastic syndrome – parathyroid gland – parathyroid hormone – parenchyma – paresthesias – paricalcitol – parietal pericardium – Parkinson's disease – parotidectomy – paroxetine hydrochloride – partial cystectomy – partial laryngectomy – partial mastectomy – partial nephrectomy – partial oophorectomy – partial remission – partial response – passive antibody therapy – Paterson–Kelly syndrome – pathological staging – patient-controlled analgesia – Patient derived tumor xenografts – PCA – PDQ – peau d'orange – PEG-interferon alfa-2a – PEG-interferon alfa-2b – PEG-MGDF – pegaspargase – pegfilgrastim – PEITC – peldesine – pelvic exenteration – pelvic lymphadenectomy – pemetrexed disodium – penclomedine – penicillamine – pentetic acid calcium – pentosan polysulfate – pentostatin – pentoxifylline – peptide – peptide 946 – percutaneous ethanol injection – percutaneous transhepatic biliary drainage – percutaneous transhepatic cholangiodrainage – percutaneous transhepatic cholangiography – perfusion – perfusion magnetic resonance imaging – pericardial effusion – perifosine – perineal colostomy – perineal prostatectomy – peripheral blood lymphocyte therapy – peripheral neuropathy – peripheral primitive neuroectodermal tumor – peripheral stem cell – peripheral stem cell support – peripheral stem cell transplantation – peristalsis – peritoneal cancer – peritoneal infusion – peritoneal perfusion – pernicious anemia – pertuzumab – PET scan – petechiae – Peutz–Jeghers syndrome – phagocyte – pharmacokinetics – phase I trial – phase I/II trial – phase II trial – phase II/III trial – phase III trial – phase IV trial – phenethyl isothiocyanate – phenoxodiol – phenylacetate – phenylbutyrate – pheochromocytoma – pheresis – Philadelphia chromosome – photodynamic therapy – photothermal therapy – photofrin – photopheresis – phyllodes tumor – Physician Data Query – phytic acid – phytoestrogen – phytosterol – PI-88 – pilocarpine – pilocytic – pineal region tumor – pineoblastoma – pineocytoma – piperacillin/tazobactam – pirfenidone – piritrexim – pixantrone – PJS – PKC412 – plasmacytic – plasmacytoma – plasmapheresis – Plenaxis – pleomorphic – pleural effusion – pleurodesis – plexiform neurofibroma – plexopathy – ploidy –