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This is a 62 year old who is having a progressively

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enlarging palpable mass.

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Along the Palmer aspect of the foam on

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sagittal gradient echo images,

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we see a markedly heterogeneous soft tissue mass that

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is emanating from the flexor tendon of the, uh,

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first digit.

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The mass is extending into the Palmer subcutaneous,

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uh, soft tissues, and very importantly,

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it demonstrates these areas of defacing artifact

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due to the present of HemosIL deposits.

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So gradient echo images are really important when we are

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assessing masses about tendon structures That

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could be related to tenino synovial giant cell tumor,

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or pigmented vi nodular synovitis,

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or pigmented vi nodular tumor arising from the tendon

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cheek of the flexor tendon of the first digit. In this patient,

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axial T one weighted image pre contrast, um,

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post contrast demonstrate a mass that is intermediate signal

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intensity on t1.

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It has a very well defined ovulated margin and it

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demonstrates mild to moderate post contrast heterogeneous enhancement.

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So the prime diagnosis here is tenino synovial giant

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cell tumor.

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The differential diagnosis would be with masses that emanate from

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tendon, a tendon fibroma, a tendon ganglion,

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osis, which in this case this is cystic mass.

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So we can easily rule that out. And then, uh,

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fibromatosis or desmoid tumor is also a consideration

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diagnosis here.

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10 synovial giant cell tumor arising from the, uh,

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flexor policies, uh, lungs in this patient, uh,

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who has a slowly progressively enlarging

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tumor along the polymer aspect of his thumb.