Neutrophil/eosinophil‐rich type of primary cutaneous anaplastic large cell lymphoma: a clinicopathological, immunophenotypic and molecular study of nine cases

Abstract

Neutrophil/eosinophil-rich CALCL should be differentiated from various infectious and non-infectious diseases, especially from non-neoplastic cutaneous CD30+ infiltrates rich in neutrophils and eosinophils. Precise correlation of clinical presentation, morphological features, phenotypic and molecular analysis can help to establish the correct diagnosis. Whether this rare variant has a significantly different prognosis from classical CALCL needs further investigation.