Letter
Early B-cell chronic lymphocytic leukemia presenting as cutaneous lesions with a normal peripheral blood lymphocyte count

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Case 1

A 63-year-old woman presented with a 6-month history of hyperpigmentation and swelling around the second toe on her right foot. Biopsy of the lesion demonstrated features of SLL with transdermal infiltrates of small lymphocytes with partly cleaved nuclei (Fig 1, A). Immunoperoxidase staining was CD20 and CD23 positive with CD5/CD43 co-expression, cyclin D1 negative. Immunoglobulin heavy chain gene rearrangement by polymerase chain reaction (PCR) demonstrated a monoclonal band.

Although her blood

Case 2

A 75-year-old woman noticed erythematous patches and plaques developing on her back over an 18-month period. Nodules were noted over her left scapula, cheeks, and shoulders, up to 3 cm × 3 cm in size (Fig 2) without lymphadenopathy.

Plaque biopsies demonstrated atypical lymphoid infiltrates. T- and B-cell gene rearrangement studies demonstrated a monoclonal band for IgH gene. Bcl-2 and TCR gamma PCR studies were negative. Again, her lymphocyte count was normal. No atypical cells were identified

References (3)

  • H.K. Muller-Hermelink et al.

    Chronic lymphocytic leukemia/small lymphocytic leukemia

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