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Raaf catheter Rabbit syndrome Rabenhorst syndrome Rabl configuration Racine syndrome (premenstrual salivary syndrome) Radovici sign Raeder syndrome (cluster headache) Rai criteria Raimiste sign Raji cells Raman spectrometer Ramirez syndrome Ramond point Ramond sign Ramsay Hunt syndrome Ramsden eyepiece Ramsey Hunt syndrome Randall kidney stone forceps Randall plaques Randolph test Raney alloy Raney nickel Ranke complex Rankin hemostatic forceps Rankine thermometer Ranson criteria Ranson\\\’s Criteria Ranvier node Rapadilino syndrome Rappaport classification Rashkind balloon atrial sep-tostomy Rasin sign Rassat-Moskovtchenko fistula Rastelli classification Rastelli procedure Ratcliff classification Rathbun syndrome Rathke cleft Rathke fold Rathke pouch Rauber layer (primitive ectoderm) Rauchfuss triangle Ravelli triangle Raven progressive matrices Ray amputation Rayleigh law Rayleigh scattering Rayleigh test Raymond-Foville syndrome Raynaud disease Raynaud phenomena Raz bladder neck suspension Reaumur thermometer recess of Allison Recklinghausen tonometer rectal column of Morgagni RŸedi-Allgšwer classification Redlich Fisher miliary plaques Reed technique Reed-Sternberg cell (Dorothy Reed cell) Refsum syndrome (Kiloh-Nevin disease variant-associated retinitis pigmentosa) Rehberg test Reichel duct Reichert canal Reichert cartilages Reichl test Reid base line Reifenstein syndrome Reiger anomaly Reil triangle Reilly body Reinke crystalloids Reinke edema Reinke space Reinsch test Reis-Bucklers corneal dystrophy (corneal dystrophy of Bowman layer type 1, superficial variant of granular dystrophy) Reisseisen muscle Reissner fibers Reissner membrane Reitan-lndiana test (aphasic screening test) Reiter test Relton-Hall frame Renaut bodies Rendell-Baker Soucek mask Rendu Osier-Weber disease Rennes disease Rentsch press Replogle tube residual body of Regnaud Rett syndrome Retzius cavity (prevesical space) Retzius foramen Retzius veins Reuss color chart Reuss test reverse Bennett fracture Revllliod sign (orbicularis sign) Reye syndrome Reynell test Reynold pentad Reynolds number Reynolds test Rezaian device Rhabdomyolysis Rhode Island dissectors Rhodesian fever Rhodesian sleeping sickness (East African trypanosomiasis, trypanosomiasis) ribbon of Reil Ribes ganglion Rice-Hyde test Rich syndrome Richardson retractor Richardson-Eastman retractor Riches diathermy forceps Richet aneurysm Richmond bolt Richner-Hanhart syndrome Richter hernia Richter syndrome (transformation) Richter-Lortolary syndrome Richter-Monro line Rickham reservoir Ridley sinus Ridley syndrome Riechert frame Riedel lobe Riedel thyroiditis (disease, struma, syndrome) Rieger anomaly Rieger syndrome Riegler test Riehl syndrome Riesman sign Rieux hernia Rift Valley fever (enzootie hepatitis) Rigler sign Riley-Day syndrome (familial dysautonomia) Rindfleisch fold Ring prosthesis Ringer lactate Ringertz classification Rinne test Riolan muscle Riolan nosegay Ripault sign Ripstein procedure Riseborough-Radin classification Risquez sign Risser sign Ritgen maneuver Ritter-Rollet phenomenon Rivalta disease Rivalta reaction (Moritz reaction) Rivers cocktail (Philadelphia cocktail) Riviere sign Rivinus duct Rivinus gland Rivinus notch (incisura tympanica, Rivinus foramen) Robb-Persson operation Robert formula (modified) Robert ligament Robert pelvis Roberts test Robertson sign Robertsonian translocation Robinson catheter Robson grading system Robson line Rocher-Sheldon disease Rochester-Carmalt hemostatic forceps Rochester-Ochsner hemostatic forceps Rochester-Pean hemostatic forceps Rochon-Duvigneaud syndrome Rockey-Davis incision Rockwell scale Rocky Mountain spotted fever Roeder towel clamp Roenheld syndrome Roger syndrome Roger-Anderson external fixation Rogers syndrome Rohrer index Rokitansky disease Rokitansky pelvis Rokitansky tubercle Rokitansky-Aschoff sinuses Rokitansky-Cushing ulcer Rolandic area Rolando angle Rolando fibers Rolando fissure Rolando fracture (T-condylar fracture) Rolando line Rolando tubercle Rolando zone Roller central nucleus Roller nucleus Romano-Ward syndrome Romanovsky stain Romberg disease Romberg test (sign) Romberg Wood syndrome (primary pulmonary hypertension) Romberg-Howship sign Rome diagnostic criteria Roos test Rose-Bradford kidney Rosemberg-Lohr syndrome Rosenbach disease Rosenbaum screen (Jaeger chart) Rosenberg-Chutorian syndrome Rosenfeld system Rosenmiiller nodes RosenmŸller gland (node) Rosenthal fibers (bodies) Rosenthal vein (basal vein) Roser-NŽlaton line Rosetti Hall modification Ross bodies Ross procedure Ross river virus Ross-Jones test (Nonne test) Rosselli-Gulienetti syndrome Rossi syndrome Rossolimo reflex Roth Bielschowsky syndrome (pseudo-ophthalmoplegia) Roth spots Roth syndrome Rothman-Makai syndrome Rothmund-Thomson syndrome (Bloch-Stauffer syndrome) Rotor syndrome Rotter nodes Rouget muscle Rougnon-Heberden disease Rouhier technique Rous virus Roussy-LŽvy disease Roux sign Roux syndrome Roux-en-Y procedure (anastomosis) Rovsing sign Rowe elimination diet Rowley-Rosenberg syndrome (Busby syndrome) Royer syndrome Royer-Wilson syndrome Rozycki syndrome Rubinstein-Taybi syndrome Rud syndrome Ruediger syndrome Ruffinl endings Ruiter-Pompen disease Rukavinas syndrome (Indiana-type amyloidosis neuropathy, Maryland-type amyloidosis neuropathy) Rumel tourniquet Rummo syndrome Runge disease Runyon classification Runyon group Russe approach (Herbert approach) Russell body (fuchsin body) Russell dwarf (Silver dwarf) Russell traction Russell viper venom clotting time (test) Russell-Rees syndrome Russell-Silver syndrome Russell-Taylor nail Russian forceps Rust phenomenon Rutland syndrome Rutledge classification Ruvalcaba syndrome (Hunter syndrome, Sugio-Kajii syndrome) Ruvalcaba-Myhre-Smith syndrome Ruysch muscle Ruysch veins (posterior ciliary veins) Rye classification