An unusual case of recurrent Kimura disease with concurrent bilateral upper limb and postauricular lesions: Radiologic-pathologic correlation

Kimura disease (KD) is a rare chronic inflammatory disorder that predominantly affects young Asian males and commonly involves the head-and-neck region. Upper extremity involvement is uncommon, while recurrent disease with concurrent bilateral upper limb and postauricular lesions is exceedingly rare. We report a case of recurrent KD in a 23-year-old man presenting with bilateral epitrochlear, left wrist, and left postauricular swellings. Ultrasonography demonstrated vascular soft tissue lesions, while magnetic resonance imaging revealed enhancing subcutaneous masses with neurovascular encasement and intermuscular extension. Histopathology showed eosinophilic inflammatory infiltrates with vascular proliferation, confirming recurrent KD. Recognition of characteristic radiologic and histopathologic findings is important to differentiate this benign inflammatory entity from aggressive soft tissue neoplasms and to guide appropriate management.