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Peripheral T cell lymphoma presenting primarily as lethal midline granuloma
A Chott1, K Rappersberger, W Schlossarek
1Department of Pathology, University of Vienna, School of Medicine, Austria.
Human Pathology
|September 1, 1988
Summary
Lethal midline granuloma (LMG) is identified as a pleomorphic peripheral T cell lymphoma (PTL). Larger atypical lymphoid cells in these PTLs indicate a poorer prognosis, with localized disease showing better survival outcomes.
Area of Science:
- Pathology
- Oncology
- Immunology
Background:
- Lethal midline granuloma (LMG) presents as destructive facial and upper aerodigestive tract lesions.
- Histological findings often include atypical lymphoid infiltrates with vascular involvement.
Purpose of the Study:
- To clinicopathologically characterize seven patients with lesions consistent with LMG.
- To determine the immunomorphologic diagnosis and prognostic factors of these cases.
Main Methods:
- Clinicopathologic review of seven patients with ulcerative midline lesions.
- Histological examination of tissue infiltrates.
- Immunomorphologic analysis using monoclonal antibodies on frozen and paraffin sections.
Main Results:
- All seven cases were diagnosed as peripheral T cell lymphoma (PTL), specifically pleomorphic T cell lymphomas.
- Five patients had disseminated disease (skin, lungs, lymph nodes, bone marrow); two had localized disease.
- Patients with large cell lymphoma or disseminated disease had a significantly poorer prognosis (mean survival 7 months) compared to those with localized disease (alive after 10 and 36 months).
Conclusions:
- Lethal midline granuloma represents a form of peripheral T cell lymphoma.
- The presence of large atypical lymphoid cells is associated with a poor prognosis.
- Localized disease demonstrates a better survival rate, suggesting potential for better outcomes with early diagnosis and treatment.