The Rapid Development of Squamous Cell Carcinoma on the Nasal Dorsum of a Patient Receiving Immunosuppressive Therapy.

The risk of cancer is significantly increased in patients undergoing renal transplant surgery than in the general population. In particular, skin cancer is the most commonly occurring cancer in these patients.A 34-year-old man underwent living renal transplantation for focal segmental glomerulosclerosis. After 18 months, he developed a lesion on the nasal dorsum, approximately 1 cm in size, and the lesion rapidly expanded to cover the entire dorsum.Owing to its rapid expansion, the lesion was suspected to be a malignant tumor and wide excision was planned.We removed the lesion with a 6-mm margin. Squamous cell carcinoma was diagnosed through intraoperative rapid pathological examination. The nasal bone and septum were invaded by the tumor and, as a result, the entire external nose was removed. The patient's nose was subsequently reconstructed using a free forearm flap for lining, iliac bone graft for the nasal frame, and a scalping forehead flap for skin coverage.Selective target radiotherapy was administered at the closest margin around the lesion, and the dosage of immunosuppressants was reduced.At >2 years postoperatively, the patient showed good cosmetic results with no relapse or metastasis of the tumor.We report the unusual case of a young man who developed a rapidly progressing squamous cell carcinoma on his nasal dorsum after 18 months of immunosuppression. Squamous cell carcinoma in organ transplant recipients may be more aggressive and may progress differently than in regular patients. Therefore, special attention is required for patients who take immunosuppressive drugs after renal transplant surgery.