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Dermatopathologic effects of taxane therapy

Rebecca S Plummer1, Christopher R Shea1

  • 1Section of Dermatology, Department of Medicine, University of Chicago, Chicago, Illinois.

Journal of the American Academy of Dermatology
|April 20, 2011
PubMed
Abstract

Insights

Taxane chemotherapy causes significant skin cell changes, mimicking malignancy in biopsies. Dermatopathologists must exercise caution when interpreting these taxane-induced histopathologic findings.

Area of Science:

  • Oncology
  • Dermatopathology
  • Cell Biology

Background:

  • Taxane drugs disrupt cell-cycle progression by impairing centrosomes, inducing abnormal spindles, and suppressing microtubule dynamics.
  • These disruptions lead to aberrant mitosis or mitotic slippage, potentially triggering apoptosis in affected cells.

Observation:

  • This study analyzed three benign skin biopsy specimens from patients undergoing taxane therapy (paclitaxel or docetaxel).
  • Histopathologic examination focused on identifying characteristic changes induced by taxane treatment.

Findings:

  • All examined specimens displayed numerous apoptotic and mitotic figures, including atypical forms, indicative of taxane's cytotoxic effects.
  • One case initially suspected as malignant melanoma was reclassified as an atypical nevus.
  • Other cases showed reactive epidermal hyperplasia and ecthyma alongside background taxane effects.

Implications:

  • Taxane therapy induces profound cytopathic effects in skin biopsy specimens.
  • These taxane-induced changes can be mistaken for malignancy, necessitating careful interpretation.
  • Dermatopathologists require heightened awareness when evaluating skin biopsies from patients on taxane therapy to avoid misdiagnosis.

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