Tophaceous Gout at the Popliteal Sulcus.

Area of Science:

• Rheumatology
• Orthopedic Imaging
• Gout Diagnosis

Background:

• Popliteal sulcus erosion and soft tissue masses can present diagnostic challenges.
• Gout is a common form of inflammatory arthritis that can affect various joints.
• Differential diagnosis for posterior knee masses includes various neoplastic and inflammatory conditions.

Purpose of the Study:

• To highlight the association between popliteal sulcus erosion with soft tissue mass and gout.
• To emphasize the importance of considering gout in the differential diagnosis of posterior knee abnormalities.

Main Methods:

• Review of imaging findings in patients with popliteal sulcus erosion and soft tissue masses.
• Correlation of imaging findings with clinical presentation and laboratory data.
• Case series analysis of patients diagnosed with gout presenting with these imaging features.

Main Results:

• Imaging may reveal characteristic erosions in the popliteal sulcus.
• Associated soft tissue masses can mimic other pathologies.
• A subset of patients with these findings were ultimately diagnosed with gout.

Conclusions:

• Popliteal sulcus erosion and associated soft tissue masses should raise suspicion for gout.
• In cases of diagnostic uncertainty, gout should be considered in the differential diagnosis.
• Early recognition of gout can lead to timely and appropriate management.