Clinician sent the patient through for an MRI suspecting a lateral meniscal tear.
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Horizontal tear of posterior horn of medial meniscus dividing the horn into an upper and lower portion. A 11 mm cyst is seen posterior to the torn meniscus abutting it.
No clear communication seen between cyst and tear. Features are suggestive of a possible parameniscal cyst. MRI is useful specially for detection of posterior para meniscal cysts which are difficult to identify in arthroscopy.