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📌 Ruptured Baker's Cysts: Distal and Proximal Intramuscular Dissection
- Typical Presentation of a Ruptured Baker's Cyst: A ruptured popliteal cyst, commonly known as a Baker's cyst, usually appears as high signal intensity edema dispersing into adjacent soft tissues and fascial planes.
✅ Case 1: Distal Intramuscular Dissection
- Clinical Presentation: Tender fullness at the posteromedial aspect of the knee, just below the joint line.
- Pathology: Dissection through the medial gastrocnemius muscle, presenting outside and within the muscle compartment.
✅ Case 2: Proximal Intramuscular Dissection
- Clinical Presentation: Dissection extending superiorly into the semimembranosus muscle above the knee joint.
- Pathology: The cyst penetrates the muscle fascia and extends into the muscle.
★ Differential Diagnosis
- Both cases can mimic trauma-induced myofascial muscle tears on imaging.
- However, the key distinguishing feature is the presence of the Baker's cyst neck, which extends to the posterior aspect of the knee joint, located between the semimembranosus tendon and the medial head of the gastrocnemius.
- Identifying this structure is crucial for accurate diagnosis.
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#BakersCyst, #PoplitealCyst, #MusculoskeletalRadiology, #KneeJoint, #Edema, #Gastrocnemius, #Semimembranosus, #MyofascialTears, #MRI, #Radiology
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| (Fig 4-D.12) Gastrocnemius Ganglia (0) | 2024.06.25 |
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| (Fig 4-D.11) Intramuscular Extension of Baker's Cyst (0) | 2024.06.25 |
| (Fig 4-D.09) Ruptured Baker’s Cyst (0) | 2024.06.24 |
| (Fig 4-D.08) Unruptured Baker’s Cyst (0) | 2024.06.24 |
| (Fig 4-D.07) Comparison of Parameniscal Cysts and Infrapatellar Ganglion Cysts (0) | 2024.06.23 |
