A case of cutaneous metastatic carcinoma misdiagnosed as herpes zoster
ZHANG Xuelei
HU Honghua
ZHOU Sen
LIU Lunfei
Abstract：We present a case of cutaneous metastatic carcinoma that was initially misdiagnosed as herpes zoster.A 74-year-old male experienced painful erythemas,papules,and nodules on the right thoracic and dorsal regions for over two months.He had a history of small cell lung cancer with multiple lymph node metastases for more than two years.Prior to this visit,he had been re-ceiving anti-tumor treatment with adibelimab and docetaxel.Dermatological examination showed a band-like distribution of erythemas,papules,and nodules on the right chest and back.The le-sions appeared pale red to pink,smooth,and firm in texture,with some resembling a"pseudobul-lous"appearance.Histopathological examination of the skin lesion showed atypical cell infiltration in the subcutaneous fibrous stroma.Immunohistochemistry demonstrated CK(+)and P40(+).Diagnosis:Metastatic cutaneous squamous cell carcinoma(T4N3M1 Stage Ⅳ).The oncology de-partment administered IMRT radiotherapy to the thoracic and dorsal skin areas,at a dose of 60Gy/30f.A comprehensive assessment of the patient's multiple pulmonary metastases indicated end-stage cancer.Despite aggressive treatment,the disease was poorly controlled,leading to death.
Keywords：cutaneous metastatic carcinomaherpes zosterlung cancer
Publication Date：2025-12-28
Online Publishing Date：2026-01-13(First online date of this platform, not the publication date of the document)
Pages：4( 886-889 )