Fig. 3
From: Clinical and pathological features of lymphomas in the breast: a comprehensive multicentric study
Morphology of a cellblock of fluid accumulated around a breast implant in a patient with implant-associated anaplastic large cell lymphoma, ALK-negative. (A) H&E-stained section contains numerous atypical cells with eosinophilic cytoplasm and horseshoe-shaped nuclei, consistent with “hallmark cells”. (B) Immunohistochemistry for CD30 demonstrates a strong positivity (cytoplasmic and “Golgi-pattern” in all atypical cells C) Analysis of TCR demonstrates a monoclonal peak.
