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Perianal basal cell carcinoma managed with wide excision and random flap reconstruction
  1. Michael Geoffrey Lee Lim,
  2. Marc Paul Jose Lopez,
  3. Jaime Antonio Ong Yu and
  4. Jose Paolo Pantua Albaño
  1. Department of Surgery, University of the Philippines-Philippine General Hospital, Manila, Metro Manila, Philippines
  1. Correspondence to Dr Michael Geoffrey Lee Lim; mgllim{at}


Basal cell carcinoma (BCC) is a common skin malignancy and usually occurs in sun-exposed areas like the head and neck. Occurrence in the perianal area is rare, accounting for only 0.08% of all BCC, and 0.2% of anorectal malignancies.

We present a case of a hypertensive woman in her 60s who had a 1-year history of a gradually enlarging mass on the left perianal region. Initial biopsy revealed a carcinoma with basaloid features and was confirmed on immunohistochemistry to be nodular BCC. Proctoscopy showed no intraluminal involvement. Contrast-enhanced chest and abdominal CT scans revealed no nodal or distant metastasis. MRI showed a 7.5 mm fat plane between the mass and the external sphincter muscles, projecting adequate surgical margins.

A wide excision with at least 4 mm margins was performed. Reconstruction of the resulting defect was performed with a local random cutaneous flap.

  • Skin cancer
  • Plastic and reconstructive surgery
  • Surgical oncology
  • Surgery
  • Gastrointestinal surgery

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  • Contributors MGLL, MPJL, JAOY and JPPA all have equally contributed to the manuscript, with the final approval to publish the work in agreement among the four.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.