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Extranodal NK/T-cell lymphoma mimicking cellulitis
1The Department of Pathology, University of Colorado School of Medicine, Denver, CO, USA.
Leukemia & Lymphoma
|September 14, 2004
Summary
Diagnosing extranodal natural killer/T-cell lymphoma (NK/TCL) is challenging due to non-specific early signs. Immunohistochemistry is crucial for identifying this nasal-type lymphoma, especially when it mimics infections.
Area of Science:
- Oncology
- Immunology
- Pathology
Background:
- Extranodal natural killer/T-cell lymphoma (NK/TCL), particularly the nasal type, presents diagnostic challenges due to non-specific cytology and polymorphic infiltration in early stages.
- The characteristic angiocentric, angioinvasive, and angiodestructive pattern of nasal NK/TCL can lead to extensive necrosis, mimicking infectious processes.
Observation:
- A case of extranodal NK/TCL, nasal type, initially presented as cellulitis, highlighting the potential for misdiagnosis.
- Immunohistochemistry was essential in establishing the correct diagnosis in this challenging case.
Findings:
- Immunophenotyping is critical for the diagnosis and prognosis of NK/TCL, which is currently incurable.
- The study emphasizes the need for a high index of suspicion for NK/TCL in angiocentric lesions of the head and neck.
Implications:
- Thorough immunohistological studies are recommended for suspected cases of NK/TCL.
- Early and accurate diagnosis through specialized testing can improve patient management and outcomes for this aggressive lymphoma.