Non-healing midline granuloma

Angiocentric T-cell lymphoma presenting as midface destructive lesion: case report and literature review

A case of angiocentric T-cell lymphoma presenting as a midface destructive lesion is reported. Angiocentric T-cell lymphoma typically manifests as an aggressive, progressively destructive, and necrotizing disorder, often with a fatal outcome. This case was characterized microscopically by the presence of an atypical lymphoid population that expressed a CD45+, CD3+ cytoplasmic, CD5+, and CD56- T-cell phenotype within a background of a polymorphous inflammatory infiltrate. Because of the rarity of the disorder, the differential diagnosis is discussed. Recent advances in clinical immunodiagnostics, the variations in therapeutic modalities, and the prognosis of the disease as reported in the recent literature are reviewed.

B-cell lymphoma presenting as a midfacial necrotizing lesion

A case of midfacial necrotizing lesion (midline nonhealing granuloma) is reported. Paraffin- and frozen-section immunocytochemistry suggested a tumor of B-cell lineage and was confirmed by Southern blot analysis that disclosed an immunoglobulin heavy chain gene rearrangement with no evidence of T-cell receptor genetic aberration. The tumor was of B-cell lineage despite the tumor site and the angiocentric pattern, which are typically seen with peripheral T cell lymphoma with this presentation.