Malhotra et al. [33] also described a RET-C634 positive female of 33-year-old who was initially diagnosed with metastatic medullary thyroid carcinoma and a left pheochromocytoma and showed a larger hyper-pigmented area of lichen amyloidosis at unilateral scapular region [33]. The gene discussed is RET; the disease is hereditary pheochromocytoma-paraganglioma.