Dr. Sugawara et al reply.

We sincerely thank Dr. Wang et al for their comments 1 in response to our manuscript, "IgG4-related Disease Mimicking a Paratesticular Tumor and Pelvic Lymph Node Metastasis." 2 Our case report demonstrated IgG4-related paratesticular pseudotumor and lymph node metastasis-like pelvic fibrosis.