1. Bursitis, adventitious bursa, localized soft-tissue inflammation, and bone marrow edema in tibial stumps: the contribution of magnetic resonance imaging to the diagnosis and management of mechanical stress complications1 
Anne Foisneau-Lottin, MD, Noël Martinet, MD, Philippe Henrot, MD, Jean Paysant, MD, Alain Blum, MD, Jean-Marie André, MD 
Archives of Physical Medicine and Rehabilitation 
Volume 84, Issue 5, Pages (May 2003)
DOI: /S (02)

2. Fig 1 Bursitis and localized soft-tissue inflammation sites.
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3. Fig 2
Bursitis over the fibular head. Case 3: (A) axial T1-weighted MR image: low-signal intensity in subcutaneous fat over the fibular head (arrow). (B) Axial fat-saturated T2-weighted MR image: soft tissue with high signal intensity similar to that of fluid (arrow). (C) Axial contrastenhanced fat-saturated T2-weighted MR image: peripheral enhancement of the inflamed adventitious bursa (arrow). Case 4: (D) coronal T1-weighted MR image: low signal intensity in subcutaneous fat over the fibular head (arrow). (E) Axial fat-saturated T2-weighted MR image: soft tissue with high signal intensity similar to that of fluid (arrow). (F) Axial contrast-enhanced fat-saturated T2-weighted MR image: peripheral enhancement of the inflamed adventitious bursa (arrow).
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4. Fig 3
Bursitis in the (A–C) distal part of the stump. (D, E) Calcified bursitis. (f) Neuroma. Case 2: (A) coronal T1-weighted MR image: low signal intensity in subcutaneous fat over the distal part of the tibia (arrow). (B) Coronal fat-saturated T2-weighted MR image: soft tissue intensity similar to that of fluid (arrow). (C) Coronal contrast-enhanced fat-saturated T2-weighted MR image: peripheral enhancement of the inflamed adventitious bursa (arrow). Case 8: (D) sagittal T1-weighted MR image: low signal intensity in subcutaneous fat over the distal part of the tibia (arrows). (E) Coronal fat-saturated T2-weighted MR image: high signal intensity (arrows). (F) Axial fat-saturated T2-weighted MR image: high signal intensity, heterogeneous neuroma (N) and hematoma (arrows).
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5. Fig 4
Bursitis in the distal part of the stump and over the head of fibula. Fibular head bone marrow edema. Case 5: (A) coronal T1-weighted MR image: low signal intensity in the soft tissues of the lower end of the stump (arrow). (B) Coronal T2-weighted MR image: soft tissue of the lower end of the stump shows high signal intensity similar to that of fluid (arrow). (C) Axial contrast-enhanced fat-saturated T2-weighted MR image: fluid collection in the lower end of the stump (arrows). (D) Axial contrast-enhanced fat-saturated T2-weighted MR image: peripheral enhancement of the delimited area of inflammation (bursitis), high signal intensity in the head of the fibula (bone marrow edema: arrow). (E) Coronal T1-weighted MR image: low signal intensity in subcutaneous fat over the fibular head (arrows).
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6. Fig 5
Soft-tissue delimited inflammation area over medial tibial condyle; bursitis of the lower end of the stump (A–C); bone marrow edema below the intercondylar area (D, F). Case 1: (A) coronal T1-weighted MR image: low signal intensity near the medial tibial facet (black arrow) and in the distal part of the stump (white arrows). (B) Coronal fat-saturated T2-weighted MR image: 2 areas of high signal intensity (arrows). (C) Sagittal contrast-enhanced fat-saturated T2-weighted MR image: peripheral enhancement of the inflamed adventitious bursa (arrow). (D) Coronal T1-weighted MR image: low signal intensity within the medial tibial facet (arrow). (E) Axial contrast-enhanced fat-saturated T2-weighted MR image: high signal intensity corresponding to bone marrow edema (arrow). (F) Coronal contrast-enhanced fat-saturated T2-weighted MR image: high signal intensity in the tibia below the intercondylar area corresponding to bone marrow edema (arrow).
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7. Fig 6
Localized areas of soft-tissue inflammation without fluid collection: infrapatellar (A–C) and over the fibular head (D, E); bifocal tibial bone marrow edema (E, F). Case 5: (A) sagittal fat-saturated T2-weighted MR image: high signal intensity area below the patella in the fat pad in contact with weight bearing on the socket (arrow). (B) Axial fat-saturated T2-weighted MR image: high intensity signal in infrapatellar soft tissue (arrow). (C) Sagittal contrastenhanced fat-saturated T2-weighted MR: enhancement of the infrapatellar soft tissue (arrow). (D) Axial T1-weighted MR image: low signal intensity area in subcutaneous fat over the fibular head (arrow). (E) Axial T2-weighted MR image: 2 areas of high signal intensity, one in subcutaneous fat over the fibular head (black arrow) and the other in the fibular head corresponding to bone marrow edema (white arrow). (F) Coronal T2-weighted MR image: 2 areas of high signal intensity in the tibia, one below in the intercondylar area and the other in the shaft corresponding to bone marrow edema (arrows).
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8. Fig 7
Severe muscle edema of the stump. Although edema is quite diffuse, it is more intense at the lower end of the fibula and around the bone. This abnormality is associated with fatty degeneration of the muscle tissue, skin thinning at the bottom of the stump, a small bursitis at the medial aspect of the tibia, and bone marrow edema at the lower end of the fibula. Together these elements may suggest an infectious process, although no abscess is present, and the stump is not subjected to mechanical stress.
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9. Fig 8
Asymptomatic adventitious bursae over the fibula 6 months after acute bursitis. (A) Coronal fat-saturated T2-weighted MR image: area of high signal intensity opposite the fibula (arrow). (B) Sagittal contrast-enhanced fat-saturated T2-weighted MR image: a high signal intensity opposite the fibula (arrows).
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