Pifu-xingbing zhenliaoxue zazhi (Feb 2023)

A case of basal cell carcinoma of the penis misdiagnosed as extramammary Paget's disease

  • Fanglu LOU,
  • Lin FENG,
  • Yin ZHANG,
  • Wenhao ZHENG,
  • Yi LIU,
  • Qingchun DIAO

DOI
https://doi.org/10.3969/j.issn.1674-8468.2023.01.014
Journal volume & issue
Vol. 30, no. 1
pp. 75 – 77

Abstract

Read online

A 83-year-old male presented with itchy plaques and nodules at the base of the penis for 9 years, and with ulceration for 3 years. Physical examination showed a dark red, 4.5 cm×2.5 cm plaque on the root of the penis, with scattered nodules and thick yellow-brown crust. Erythema, papules, erosions, and scales were also seen on the lower abdomen, groin, and scrotum. He was diagnosed with extramammary Paget's disease. Histopathology showed a large number of basophilic tumor lumps and contraction fissures between tumor and the peripheral tissues in the dermis. Tumor cell nuclei were large with dark stain, arranged in a palisade pattern around the tumor. The diagnosis was basal cell carcinoma. After resection of the plaque, the patient was treated with photodynamic therapy for 3 times, and followed up for 20 months with no recurrence.

Keywords