UCSD Cystine Determination Laboratory

Cultured skin fibroblasts may be utilized for the diagnosis of cystinosis. Because of the increased time and costs, white blood cells are usually sent first. On rare occasions the expression of the defect in white cells is borderline for diagnosis. Confirmation using fibroblasts is definitive.

Please contact the Cystine Determination Laboratory (click here for contact information) for instructions  and to alert personnel to receive the culture.

Cystinosis Main Page Cystine Determination Lab Description of Tests & Services