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Complete Differential Diagnosis of the Causes of ...

(By organ system)

Cardiovascular	Acute pericarditis,Angina pectoris,Aortic regurgitation,Aortic stenosis,Dissecting aneurysm,Hypertrophic obstructive cardiomyopathy,Mitral valve prolapse,Myocardial infarction,Non-dissecting aneurysm
Chemical / poisoning	No underlying causes
Dermatologic	No underlying causes
Drug Side Effect	No underlying causes
Ear Nose Throat	No underlying causes
Endocrine	No underlying causes
Environmental	No underlying causes
Gastroenterologic	Abdominal migraine,Actinomycosis,Acute appendicitis,Acute cholecystitis,Acute esophagitis,Acute hemorrhoid crises,Acute hepatitis,Acute intermittent porphyria,Acute mesenteric artery occlusion,Acute pancreatitis,Acute peritonitis,Afferent loop syndrome,Amoebic dysentry,Anal fissures,Anal itch,Anorectal abscesses,Anterior retroperitoneal abscess,Biliary colic,Carcinomatosis,Chronic esophagitis,Chronic hemolytic anemia,Chronic mesenteric insufficiency,Chronic pancreatitis,Colon cancer,Crohn's disease,Diverticulitis,Dumping syndrome,Duodenal ulcer,Esophageal cancer,Esophageal tear,Esophagitis,Familial paroxysmal peritonitis,Food allergy,Gallbladder carcinoma,Gallbladder empyema,Gas entrapment,Gas entrapment syndromes,Gastric cancer,Gastric granuloma,Gastric ulcer,Gastritis,Gastro-esophageal reflux disease,Gonococcal perihepatitis,Granulomatous peritonitis,Haemorrhoids,Hepatic abscess,Hiatus hernia,Hypertrophic gastropathy,Infected sweat glands,Infectious enterocolitis,Intestinal ischemia,Intra-abdominal abscess,Intra-abdominal aortic aneurysm,Irritable bowel syndrome,Large bowel obstruction,Liver abscess,Liver carcinoma,Local rectal lesions,Mesenteric inflammatory disease,Mesenteric tumors,Mesothelioma,Metastatic liver tumors,Mid-abdominal abscess,Neurogenic intestinal obstruction,Nonulcer dyspepsia,Pancreatic abscess,Pancreatic carcinoma,Pancreatic duct occlusion,Penetrating ulcer,Peptic ulcer disease,Perforated ulcer,Perforated ulcer,Perisplenitis,Peritoneal cancer,Phlegmonous gastritis,Postcholecystectomy syndrome,Post-gastrectomy pain syndromes,Postradiation enterocolitis,Primary liver tumors,Proctitis,Pyloric stenosis,Pylorospasm,Rectal boils,Rectal cancers,Rectal ulcers,Reflux alkaline syndrome,Regional ileitis,Retrocaecal appendicitis,Retroperitoneal masses,Small bowel obstruction,Splenic abscess,Splenic infarction,Splenic rupture,Splenomegaly,Subphrenic abscess,Too small gastric pouch,Torsion of the omentum,Tuberculosis,Typhoid,Ulcerative colitis,Venereal ulcers / granulomas,Volvulus,
Genetic	No underlying causes
Hematologic	Sickle cell anemia
Iatrogenic	No underlying causes
Infectious Disease	Deep axillary abscesses
Musculoskeletal / Ortho	12th rib syndrome,Acrocyanosis,Acute + chronic degenerative conditions,Acute arterial occlusion,Acute deep vein thrombosis,Acute thrombophlebitis,Ankle dislocation,Ankle fracture,Ankle laxity,Ankle sprain,Ankylosing spondylitis,Ankylosing spondylitis,Apophyseal (growth plate) disorders,Arteriosclerosis obliterans,Arthritides,Calcaneal paratendintis,Cartilage injuries,Cauda equina lesions,Causalgia (CRPS 2),Chondromalacia patellae,Chronic arterial insufficiency,Chronic muscle contracture,Claw toe,Coccydynia,Cold injuries,Collagen disease (scleroderma),Compartment syndrome,Contracture of fascia lata + iliotibial band,Contusion of quadriceps or other muscles,Costchondral dislocation,Costchondral fracture,Costochondritis,Costovertebral joint arthritis,Degenerative osteoarthritis,Destructive bone lesions,Developmental disorders,Diffuse idiopathic skeletal hyperostosis,Diseases of the pelvic organs,Diseases of veins,Disorders of the whole foot,Epidural abscess,Facet joint syndrome,Facet syndrome,Femoral neuralgia,Femur infections,Femur tumors,Fibromyalgia,Foot deformities,Forefoot pain,Ganglion,Gastrocnemius rupture,Generalized muscle pain,Gluteal muscle syndrome,Gout,Great toe disorders,Hallux rigidus,Hallux valgus,Hammer toe,Heel pain,Hemarthrosis,Hindfoot pain,Hip dislocation,Hip Fractures,Idiopathic scoliosis,Iliopectineal bursitis,Increased muscle tension or spasm,Infant hip infections,Infective arthritis,Infrapatellar fat pad,Ingrown toenail,Intermittent claudication,Intrinsic spinal cord lesions,Ischiogluteal bursitis,Levator muscle spasm,Ligament / capsular injuries,Lisfranc's joint instability,Livedo reticularis,Loose bodies,Low back pain and psychiatric illness,Low back pain caused by operant mechanisms,Lower abdominal muscle syndrome,Lumbar disc protrusion,Lumbosacral plexus lesions,Lumbosacral strain,Medial arch strain,Meralgia paraesthetica,Metatarsal head osteochondritis,Metatarsalgia,Midfoot pain,Morton's neuroma,Muscle spasm,Muscle strain,Muscle tendon rupture,Myofascial disorders,Myofascial pain with trigger points (TPs),Navicular osteochondritis,Nerve entrapment syndromes,Neuropathic pain,Obturator neuralgia,Osteoarthritis (degenerative),Osteochondritis dissecans,Osteomyelitis,Osteonecrosis,Paget's disease of bone,Painful heel pad,Pelvic fractures,Pelvic muscle disorders,Pelvic sprains,Pelvic trauma,Peripheral vascular disease,Peroneal neuralgia,Peroneal tendon dislocation,Perthes disease,Pes cavus (hollow foot),Pes planus (flat foot),Pigmented villonodular synovitis,Plantar fasciitis,Post phlebitic syndrome,Post traumatic spondylosis,Postamputation pain,Post-episiotomy,Posterior knee swellings / cysts,Posterior tibial tendon insufficiency,Post-laminectomy,Postoperative quadriceps muscle spasm,Postoperative reflex spasm,Post-traumatic,Primary & secondary sacroiliac joint disorders,Psoriasis,Quadriceps tendon rupture,Raynaud's disease,Raynaud's phenomenon,Rectus abdominis syndrome,Reflex sympathetic dystrophy (CRPS 1),Rheumatoid arthritis,Rheumatoid arthritis,Rheumatoid arthritis,Rheumatoid arthritis of the lumbar spine,Rheumatoid arthritis of the sacroiliac joint,Rib fractures,Rib tumors,Saphenous neuralgia,Scars,Sciatic neuralgia,Secondary tumors,Septic arthritis,Sesamoiditis,Skin disorders,Slipped capital femoral epiphysis,Slipping rib syndrome,Small arterial disease,Small toe disorders,Spinal neoplasms,Spinal nerve root radiculopathy,Spinal stenosis,Spondylolisthesis,Spontaneous osteonecrosis,Sternal fracture,Sternoclavicular arthritis,Stress fracture,Subtalar arthritis,Synovitis,Tarsal coalition,Tarsal tunnel syndrome,Tenosynovitis,Thoracic arthritis,Thoracic deformity,Thoracic spine,Thromboangiitis obliterans,Tibial neuralgia,Tietze's syndrome,Transient synovitis,Traumatic femur lesions,Traumatic muscle hematoma,Trochanteric bursitis,Tuberculosis Arthritis,Vasodilating disease,Vasospastic disease,Vertebral dislocation,Vertebral epiphysitis (Scheuermann's disease),Vertebral fracture,Vertebral infections,Xiphoidalgia
Neurologic	No underlying causes
Nutritional / Metabolic	No underlying causes
Obstetric/Gynecologic	No underlying causes
Oncologic	No underlying causes
Opthalmologic	No underlying causes
Overdose / Toxicity	No underlying causes
Psychiatric	No underlying causes
Pulmonary	No underlying causes
Renal / Electrolyte	Acute intermittent hydronephrosis,Acute pyelonephritis,Blood clot obstruction,Calyceal diverticulum,Horseshoe kidney,Hypertensive renal vascular disease,Idiopathic nephralgia,Infundibular cancer,Infundibular stenosis,Metastatic renal cell carcinoma,Non-stone obstruction,Ovarian vein syndrome,Perinephritic abscess,Polycystic kidney disease,Pyelonephrosis,Renal abscess,Renal artery aneurysm,Renal artery occlusion,Renal carbuncle,Renal cell carcinoma,Renal echinococcus,Renal pelvis carcinoma,Renal sarcoma,Renal stones / ureteric stones,Renal vein thrombosis,Retroperitoneal fibrosis,Simple single cyst,Sloughed renal papilla,Tuberculosis Cystitis,Vesicoureteral reflux
Rheum / Immune / Allergy	No underlying causes
Sexual	No underlying causes
Trauma	No underlying causes
Urologic	No underlying causes
Dental	No underlying causes
Miscellaneous	Acute mastalgia,Acute mediastinitis,Adiposis dolorosa,Chest wall phlebitis,Chronic mastalgia,Chronic mediastinitis,Diaphragmatic cysts,Diaphragmatic herniation,Diaphragmatic rupture,Diaphragmatic tumors,Mediastinal carcinoma,Mediastinal emphysema,Post-mastectomy syndrome,Post-thoracotomy syndrome,Spider bite