A 37-year-old man presented with left ankle pain that began while serving in the military. The pain is aggravated by prolonged standing and walking, and it prevents him from running. An anteroposterior (AP) radiograph (1A), coronal CT image (1B), and coronal oblique (1C), and sagittal (1D) T2-weighted fat-suppressed (T2 FS) magnetic resonance (MR) images are provided.
Hammer, Mallet, and Claw Toe Deformities of the Lesser Toes
A 50-year-old female presents with pain and swelling for 3 weeks. MRI was performed because of clinical suspicion for osteomyelitis. Sagittal proton density-weighted, sagittal STIR, and post-gadolinium sagittal T1-weighted with fat suppression images through the 4th toe are provided (Figure 1). What are the findings? What is your diagnosis?
Pigmented Villonodular Synovitis
A 21 year-old female complains of pain, swelling, and stiffness in the knee anteriorly, status post MVA 4 months ago. (1A,1B,1C) Sagittal STIR, T1-weighted, and gradient echo sequences are provided.
Sinus Tarsi Syndrome
A 28 year old female presents to an orthopaedic surgeon with lateral left ankle pain, tenderness to palpation, and a sensation of instability. She reports left ankle injury 3 weeks ago.
Midtarsal (Chopart) Joint Sprain
A 30 year-old male presents with pain in the midfoot following a twisting injury to the ankle. A lateral radiograph of the foot is provided [Figure 1A] with sagittal fat-suppressed T2-weighted [Figure 1B, 1C and 1D], and axial fat-suppressed proton-density weighted [Figure 1E] MR images provided.
Plantar Vein Thrombosis
In this month’s Radsource MRI Web Clinic, Dr. Stephen Quinn discusses a cause of foot pain and swelling that is likely underdiagnosed.
The Calcaneofibular Ligament
A 49 year-old male suffered an ankle inversion injury requiring reduction 2-3 weeks prior to imaging and presents with continued pain and swelling. MRI was performed to evaluation for ankle subtalar joint dislocation.
Atypical Scan Angles in Musculoskeletal MRI
In the March 2017 Radsource MRI Web Clinic, Drs. Leon Toye and Nabeel Anwar discuss the utility of non-orthogonal imaging planes in the evaluation of the musculoskeletal system.
Achilles Tendon Pathology
In the 1st MRI Web Clinic of 2017, Dr. Michael Stadnick revisits a site of tendon pathology that is a common source of morbidity in adult patients.
Stress Fractures in the Foot and Ankle
A 17 year-old female presents with three months of anterior ankle pain. (1a) Axial T1-weighted and (1b) coronal proton-density weighted fat-suppressed images are provided.
MR Imaging of Rheumatoid Arthritis
A 47 year-old woman presents with polyarthralgias and morning stiffness.
Accessory Anterior Inferior Tibiofibular (Bassett’s) Ligament
A 16 year-old female presents with chronic anterolateral ankle pain and a history of injury one year prior. Oblique axial proton density-weighted (1A) and coronal (1B) and sagittal (1C) T2-weighted fat-suppressed images are provided. What are the findings? What is your diagnosis?
Ankle Extensor Tendon Pathology
Clinical History: A 62 year-old woman fell while descending the steps from her front porch. She presents to the orthopaedist 3 weeks later, reporting weakness of the left foot and a palpable mass over the anterior left ankle. MRI of the ankle was obtained with axial...
Sesamoid Bones: Normal and Abnormal
Clinical History: A 20-year-old female college tennis player presents with a long-standing history of intermittent, fluctuating pain at the plantar aspect of the first metatarsophalangeal joint, increasing over the past 3-4 months. A marker was placed over the region...
Bipartite Medial Cuneiform
Clinical History: A 32 year old male patient presented with pain in the tarsal region and burning in the dorsal foot, after a twisting injury. (1a) Sagittal T1, (1b) sagittal fat saturated fast spin echo (FSE) T2, and (1c) coronal fat saturated proton density (PD)...
MRI of the Diabetic Foot
Clinical History: A 60 year-old female presents with foot and ankle pain with swelling for 3 months. No history of trauma. Axial proton density fat-suppressed and sagittal T2-weighted fat-suppressed images are provided. What are the findings? What is the diagnosis?...
Articular Osteochondroses of the Lower Extremity
Clinical History: A 9 year old boy presents for imaging with a 4 week history of medial and lateral ankle pain and progressive swelling. (1a) A single sagittal T1-weighted image through the right foot is provided. What are the findings? What is the diagnosis? [figure...
Deltoid Ligament Injuries
Clinical History: A 27 year-old male presents with severe ankle pain two weeks following an inversion injury of the ankle. Proton density-weighted fat-suppressed coronal (A) and T2-weighted FSE (B) axial images are provided. The syndesmotic ligaments between the tibia...
Baxter’s Nerve (First Branch of the Lateral Plantar Nerve) Impingement
Clinical history: A 26 year-old female presents with lateral foot pain and no prior trauma. Axial T2-weighted (1a) and coronal STIR (1b) images are provided. What are the findings? What is your diagnosis? Findings Diagnosis...
Turf Toe
Clinical History: A 20 year-old collegiate football running back presents with severe pain and inability to bear weight following an acute hyperextension injury to his great toe. Fat-suppressed T2-weighted (1a) sagittal and (1b) coronal (short axis) images are...
Lateral Hindfoot Impingement
Clinical History: A 52 year-old man presents with history of 10 years of right ankle pain, and clinical suspicion of subtalar arthritis. Sagittal T1- and fat-suppressed T2-weighted (1a,1b), and coronal fat-suppressed proton density-weighted (1c,1d) images are shown...
Gout
Clinical History: A 55 year-old male complains of chronic swelling and pain in the foot with inability to walk on concrete and waking at night, without relief from medication. Axial long axis T1-weighted (1a) and coronal short axis fat suppressed T2-weighted (1b)...
Posterior Ankle Impingement
Clinical History: A 48 year-old female presents with persistent lateral ankle pain and edema 5 months following trauma. (1a) Sagittal T2-weighted with fat-saturation, (1b) axial T1-weighted, and (1c) coronal intermediate-weighted with fat-saturation images of the...
High Ankle Sprains
Clinical History: A 17 year-old female injured her right ankle 4 days ago during a soccer game. MRI of the ankle was obtained with axial fast spin-echo T2-weighted (1a), coronal STIR (1b), and oblique coronal proton density-weighted (1c) images. What are the findings?...
Lesser Metatarsophalangeal Joint Instability
Clinical History: A 56 year-old female presents with gradual onset of right forefoot pain over 4 months. Physical examination reveals point tenderness over the plantar second metatarsophalangeal joint. MRI of the right forefoot was obtained with (1a) sagittal...
Lisfranc Ligament Tear
Clinical History: A 17 year-old male presents with the history of pain due to a football injury incurred three days prior. (1a) Axial T2-weighted and (1b) coronal fat suppressed T2-weighted images of the right midfoot are provided. What are the findings? What is your...
Plantar Fasciitis
Clinical History: A 47 year-old male presents with a history of acute onset of heel pain while running, with an audible pop. Sagittal (1a) T1-weighted and (1b) fat-suppressed T2-weighted and (1c) coronal fat-suppressed proton density weighted images are provided. What...
Tarsal Coalition
Clinical History: A 12 yo female presents with a history of medial pain and clinician's note to "evaluate posterior tibial tendon." (1a) Fat-suppressed T2-weighted sagittal, (1b) fat-suppressed proton density-weighted coronal, and (1c) T2-weighted axial images of the...
Accessory Muscles of the Ankle
Clinical History: A 43 y/o female presents with Achilles region pain. An (1a) axial T1-weighted image is provided. What are the findings? What is the diagnosis? Findings Diagnosis Flexor Digitorum Accessorius Longus...
Spring Ligament Tear
Clinical History: A 59 year-old male with a 3 year history of medial ankle pain is referred for MR imaging. (1a) Fat-suppressed proton density-weighted coronal and (1b) T2-weighted axial oblique images are provided. What are the findings" What is your diagnosis?...
Peroneal Tendon Dislocation and Superior Peroneal Retinaculum Injury
Clinical History: A 35 year-old female with history of prior ankle sprain presents with lateral pain and bruising. T2-weighted axial images are provided at a level just above the tip of the fibula (1a) and 1 cm above this site (1b). What are the findings" What is your...
Morton Neuroma
Clinical History: 45 year-old female with pain and swelling in the web space between the 3rd and 4th toes. (1a) T1-weighted coronal and (1b) T2-weighted fat-suppressed coronal images through the distal metatarsals are provided. What are the findings" What is your...
Posterior Tibial Tendinopathy
Clinical History: A 55 year old woman presents with a history of chronic progressive arch pain. Sagittal T1-weighted (1a), axial T2-weighted (1b), and fat suppressed coronal proton density-weighted (1c) images are shown below. What are the findings and what is your...
Achilles Tendinosis & Achilles Tendon Rupture
Clinical History: A jolly, white-haired gentlemen presented on December 23rd with sudden onset of pain at the back of the heel after pushing a sled (1a). (1b) T1-weighted and (1c) fat-suppressed T2-weighted sagittal images of the ankle are provided. What are the...
Tarsal Tunnel Syndrome
Clinical History: 34 year old female complains of medial foot pain and numbness. (1a) A T1 weighted axial image and (1b) fat-suppressed T2 weighted sagittal image are provided. What are the findings? What is your diagnosis? Findings ...
Ankle Ligamentous Injury
Clinical History: 32 year-old male s/p twisting injury while playing basketball. Fat-suppressed T2-weighted axial (1a) and proton density weighted coronal (1b) images are provided. What are the findings? What is your diagnosis? Findings ...
Search the Archives
Explore by Subject
Ready to see ProtonPACS for yourself?
Our demo is free with no obligations.