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Minimal deviation melanoma (halo nevus variant).
R J Reed1, S V Webb, W H Clark
1Department of Pathology, Tulane University School of Medicine, New Orleans, LA 70112.
The American Journal of Surgical Pathology
|January 1, 1990
Summary
Minimal deviation melanoma (MDM) associated with halo nevi appears to be a brief neoplastic phase. In a study of 28 cases, none showed recurrence or metastasis after follow-up.
Area of Science:
- Dermatopathology
- Oncology
Background:
- Minimal deviation melanoma (MDM) can arise in the context of a halo nevus.
- Understanding the behavior and progression of MDM is crucial for accurate diagnosis and patient management.
Purpose of the Study:
- To analyze the clinicopathologic features of minimal deviation melanoma (MDM) arising in the setting of a halo nevus.
- To evaluate the potential for neoplastic progression and patient outcomes in these specific cases.
Main Methods:
- Histopathologic review of 28 cases of MDM with associated halo nevus.
- Inclusion criteria focused on specific histologic patterns and cellular features.
- Analysis of vertical growth components and lymphocytic infiltration.
Main Results:
- Twenty-eight cases of MDM associated with halo nevus were studied.
- Lesions exhibited features of neoplastic progression at the dermal-epidermal interface or within the dermis.
- Most MDMs were borderline in size (<1.00 mm vertical dimension).
- For 12 cases with follow-up, no metastases or local recurrences were observed.
Conclusions:
- MDM in the setting of halo nevus may represent a transient neoplastic phase.
- The observed cases, particularly borderline ones, suggest a potentially benign or self-limiting course.
- Further research is warranted to confirm the long-term behavior of MDM associated with halo nevi.