The triad of rash, arthritis, and uveitis seems to be characteristic for early-onset childhood sarcoidosis. We describe an interesting case of early-onset childhood sarcoidosis coexisting enchondromatosis, which clinically masquerade as Langerhans cell histiocytosis. A 33 months old girl presented with skin rash, subcutaneous nodules with polyarthritis, and revealed the involvement of lymph nodes as well as spleen during work-up. She also presented with multiple osteolytic lesions which pathologically proven enchondromatosis. Oral prednisone was prescribed at 2 mg/kg/day for 2 months until when subcutaneous nodules and joint swellings almost disappeared, and then slowly tapered over a period of 5 months. We report an unusual case of early-onset childhood sarcoidosis presented with osteolytic bone lesions which were irrelevant to sarcoidosis.
Administration, Oral ; Anti-Inflammatory Agents/therapeutic use ; Arthritis/complications ; Child, Preschool ; Diagnosis, Differential ; Enchondromatosis/*complications/*diagnosis/drug therapy/radiography ; Exanthema/etiology ; Female ; Humans ; Positron-Emission Tomography and Computed Tomography ; Prednisone/therapeutic use ; Sarcoidosis/*complications/*diagnosis/drug therapy/radiography ; Whole Body Imaging