Differential Diagnosis
DDx Strength: Weak
Knee pain, Muscle weakness Add or remove findings

Differential too broad. Edit Findings to refine your results.

Knee injury

Knee injury
Knee injury2

Osteoarthritis

OsteoarthritisOsteoarthritis
Osteoarthritis31

Peroneal mononeuropathy

Peroneal mononeuropathy
Peroneal mononeuropathy1

Venous malformation

Venous malformationVenous malformation
Venous malformation2

Acute compartment syndrome

Acute compartment syndrome
Acute compartment syndrome1

Patellar fracture

Patellar fracture
Patellar fracture6

Tendonitis

Tendonitis
Tendonitis1

Traumatic neuroma

Traumatic neuromaTraumatic neuroma
Traumatic neuroma8

Avascular necrosis

Avascular necrosisAvascular necrosis
Avascular necrosis23

Neurofibromatosis

NeurofibromatosisNeurofibromatosis
Neurofibromatosis89

Ganglion cyst

Ganglion cystGanglion cyst
Ganglion cyst30

Pes anserine pain syndrome

Pes anserine pain syndrome
Pes anserine pain syndrome1

Psoriatic arthropathy

Psoriatic arthropathyPsoriatic arthropathy
Psoriatic arthropathy21

Rheumatoid arthritis

Rheumatoid arthritisRheumatoid arthritis
Rheumatoid arthritis71

Clear cell sarcoma

Clear cell sarcoma
Clear cell sarcoma1

Diffuse tenosynovial giant cell tumor

Diffuse tenosynovial giant cell tumor
Diffuse tenosynovial giant cell tumor28

Osteochondroma

Osteochondroma
Osteochondroma24

Patellofemoral pain syndrome

Patellofemoral pain syndrome
Patellofemoral pain syndrome1

Prepatellar bursitis

Prepatellar bursitis
Prepatellar bursitis5

Iliotibial band syndrome

Iliotibial band syndrome
Iliotibial band syndrome3

Patellar tendinopathy

Patellar tendinopathy
Patellar tendinopathy2

Reactive arthritis

Reactive arthritisReactive arthritis
Reactive arthritis65

Semimembranosus tendinopathy

Semimembranosus tendinopathy
Semimembranosus tendinopathy1

Septic arthritis

Septic arthritisSeptic arthritis
Septic arthritis3

Immunoglobulin A vasculitis

Immunoglobulin A vasculitisImmunoglobulin A vasculitis
Immunoglobulin A vasculitis36

Aneurysmal bone cyst

Aneurysmal bone cyst
Aneurysmal bone cyst24

Osgood-Schlatter disease

Osgood-Schlatter diseaseOsgood-Schlatter disease
Osgood-Schlatter disease3

Transient synovitis of hip

Transient synovitis of hip
Transient synovitis of hip1

Bursitis

BursitisBursitis
Bursitis36

Calcium pyrophosphate deposition disease

Calcium pyrophosphate deposition diseaseCalcium pyrophosphate deposition disease
Calcium pyrophosphate deposition disease22

Gout

GoutGout
Gout72

Hip fracture

Hip fracture
Hip fracture1

Lipoma

LipomaLipoma
Lipoma33

Popliteal cyst

Popliteal cystPopliteal cyst
Popliteal cyst8

Complex regional pain syndrome

Complex regional pain syndrome
Complex regional pain syndrome2

Deep vein thrombosis

Deep vein thrombosisDeep vein thrombosis
Deep vein thrombosis8

Enchondroma

EnchondromaEnchondroma
Enchondroma23

Hip injury

Hip injury
Hip injury1

Lyme disease

Lyme diseaseLyme disease
Lyme disease71

Meralgia paresthetica

Meralgia paresthetica
Meralgia paresthetica1

Phlebitis

PhlebitisPhlebitis
Phlebitis2

Quadriceps tendinopathy

Quadriceps tendinopathy
Quadriceps tendinopathy1

Sarcoidosis

SarcoidosisSarcoidosis
Sarcoidosis217

Sickle cell acute pain crisis

Sickle cell acute pain crisis
Sickle cell acute pain crisis1

Osteochondral defect

Osteochondral defectOsteochondral defect
Osteochondral defect32

Ankylosing spondylitis

Ankylosing spondylitisAnkylosing spondylitis
Ankylosing spondylitis3

Chondrosarcoma

Chondrosarcoma
Chondrosarcoma28

Giant cell tumor of tendon sheath

Giant cell tumor of tendon sheathGiant cell tumor of tendon sheath
Giant cell tumor of tendon sheath27

Glomangiomas

GlomangiomasGlomangiomas
Glomangiomas19

Glomus tumor

Glomus tumorGlomus tumor
Glomus tumor36

Hemochromatosis

HemochromatosisHemochromatosis
Hemochromatosis8

Liposarcoma

Liposarcoma
Liposarcoma23

Neurilemmoma

NeurilemmomaNeurilemmoma
Neurilemmoma25

Osteonecrosis of the femoral heads

Osteonecrosis of the femoral heads
Osteonecrosis of the femoral heads27

Patellar tendon rupture

Patellar tendon rupture
Patellar tendon rupture4

Periostitis

PeriostitisPeriostitis
Periostitis2

Quadriceps tendon rupture

Quadriceps tendon rupture
Quadriceps tendon rupture3

Secondary hypertrophic osteoarthropathy

Secondary hypertrophic osteoarthropathy
Secondary hypertrophic osteoarthropathy11

Chronic recurrent multifocal osteomyelitis

Chronic recurrent multifocal osteomyelitisChronic recurrent multifocal osteomyelitis
Chronic recurrent multifocal osteomyelitis11

Fibrous dysplasia

Fibrous dysplasia
Fibrous dysplasia17