Significant differences between SGD and MGD in terms of size (p = 0.006), US texture (p = 0.003), and pathology (p = 0.011) were recorded, but no significant differences were identified in terms of patient age (p = 0.08), gender (p = 0.335), symptoms (p = 0.992), and PTH (p = 0.113). The gene discussed is PTH; the disease is specific granule deficiency.