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Giant Cell Tumor of the Patella Tendon Sheath Presenting as a Painful Locked Knee.

Panagopoulos A, Tsoumpos P, Tatani I, Iliopoulos I, Papachristou D - Am J Case Rep (2015)

Bottom Line: Clinical examination revealed lack of extension by approximately 20°.Histological examination showed a tendosynovial giant cell tumor of the patella tendon sheath.At the latest follow-up, 2 years postoperatively, there was no local tumor recurrence.

View Article: PubMed Central - PubMed

Affiliation: Department of Sports Medicine, Orthopaedic Clinic, Patras University Hospital, Patras, Greece.

ABSTRACT

Background: The giant cell tumor of the tendon sheath (GCT-TS) is a benign proliferative synovial tumor manifesting as an intra-articular solitary nodule. When it involves the infrapatellar fat pad it can present acutely as a painful locked knee.

Case report: A 26-year-old white male presented with a 2-week history of painful locking in his right knee. Clinical examination revealed lack of extension by approximately 20°. To help establish the diagnosis, an MRI scan of the right knee was performed, showing a large (5×4×2 cm), oval, well-circumscribed mass with a low-intensity homogenous signal. The size of the mass prohibited the removal by arthroscopy and we therefore proceeded with an open arthrotomy. Histological examination showed a tendosynovial giant cell tumor of the patella tendon sheath. At the latest follow-up, 2 years postoperatively, there was no local tumor recurrence.

Conclusions: These rare tumorous lesions should be included in the differential diagnosis of painful locking knee, especially in the absence of definite traumatic history.

No MeSH data available.


Related in: MedlinePlus

Magnetic resonance images of the right knee joint. T2-weighted fat-saturated, proton density sagittal (A) and axial (B) images showing a lobulated mass in the posterior aspect of the infrapatellar fat pad. The mass had hypointense signal intensity and extended into the intercondylar notch.
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f2-amjcaserep-16-568: Magnetic resonance images of the right knee joint. T2-weighted fat-saturated, proton density sagittal (A) and axial (B) images showing a lobulated mass in the posterior aspect of the infrapatellar fat pad. The mass had hypointense signal intensity and extended into the intercondylar notch.

Mentions: To help establish the diagnosis, an MRI scan of the right knee was performed. Coronal and sagittal T1-weighted and T2-weighted images (Figure 2) revealed a large (5×4×2 cm), oval, well-circumscribed mass with a low-intensity homogenous signal. The extension margins were in close proximity with the patellar tendon, occupying the posterior aspect of it. The mass projection was to an intra-articular direction.


Giant Cell Tumor of the Patella Tendon Sheath Presenting as a Painful Locked Knee.

Panagopoulos A, Tsoumpos P, Tatani I, Iliopoulos I, Papachristou D - Am J Case Rep (2015)

Magnetic resonance images of the right knee joint. T2-weighted fat-saturated, proton density sagittal (A) and axial (B) images showing a lobulated mass in the posterior aspect of the infrapatellar fat pad. The mass had hypointense signal intensity and extended into the intercondylar notch.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4554334&req=5

f2-amjcaserep-16-568: Magnetic resonance images of the right knee joint. T2-weighted fat-saturated, proton density sagittal (A) and axial (B) images showing a lobulated mass in the posterior aspect of the infrapatellar fat pad. The mass had hypointense signal intensity and extended into the intercondylar notch.
Mentions: To help establish the diagnosis, an MRI scan of the right knee was performed. Coronal and sagittal T1-weighted and T2-weighted images (Figure 2) revealed a large (5×4×2 cm), oval, well-circumscribed mass with a low-intensity homogenous signal. The extension margins were in close proximity with the patellar tendon, occupying the posterior aspect of it. The mass projection was to an intra-articular direction.

Bottom Line: Clinical examination revealed lack of extension by approximately 20°.Histological examination showed a tendosynovial giant cell tumor of the patella tendon sheath.At the latest follow-up, 2 years postoperatively, there was no local tumor recurrence.

View Article: PubMed Central - PubMed

Affiliation: Department of Sports Medicine, Orthopaedic Clinic, Patras University Hospital, Patras, Greece.

ABSTRACT

Background: The giant cell tumor of the tendon sheath (GCT-TS) is a benign proliferative synovial tumor manifesting as an intra-articular solitary nodule. When it involves the infrapatellar fat pad it can present acutely as a painful locked knee.

Case report: A 26-year-old white male presented with a 2-week history of painful locking in his right knee. Clinical examination revealed lack of extension by approximately 20°. To help establish the diagnosis, an MRI scan of the right knee was performed, showing a large (5×4×2 cm), oval, well-circumscribed mass with a low-intensity homogenous signal. The size of the mass prohibited the removal by arthroscopy and we therefore proceeded with an open arthrotomy. Histological examination showed a tendosynovial giant cell tumor of the patella tendon sheath. At the latest follow-up, 2 years postoperatively, there was no local tumor recurrence.

Conclusions: These rare tumorous lesions should be included in the differential diagnosis of painful locking knee, especially in the absence of definite traumatic history.

No MeSH data available.


Related in: MedlinePlus