Aggregated dilated pores
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Updated: Oct 20, 2026

Quantifying Intermembrane Distances with Serial Image Dilations
Published on: September 28, 2018
1Department of Dermatology, Yokohama Southern Hospital, Japan.
Abstract:
We report a 74-year-old Japanese man who had a 10-year history of approximately 20 open comedones crowded onto his lateral neck. An excisional biopsy revealed that each comedo was histologically a dilated pore. Dilated pores are usually solitary. The multiple and aggregated dilated pores seen in our case have never been reported.
Insights
This study describes a rare case of multiple aggregated dilated pores on the neck, a condition typically presenting as a solitary lesion. This finding expands the known clinical presentation of dilated pore of Winer.
Area of Science:
- Dermatology
- Histopathology
Background:
- Dilated pore of Winer is a benign follicular ביותר commonly presenting as a solitary lesion.
- Previous literature documents dilated pores as typically isolated occurrences.
Observation:
- A 74-year-old Japanese male presented with a decade-long history of approximately 20 open comedones on his lateral neck.
- The lesions were histologically confirmed as dilated pores upon excisional biopsy.
Findings:
- The case presented multiple, aggregated dilated pores, a presentation not previously documented in medical literature.
- Histopathological examination confirmed the diagnosis of dilated pore of Winer.
Implications:
- This case expands the differential diagnosis for multiple comedonal lesions on the neck.
- Highlights the importance of histopathological examination for accurate diagnosis of rare dermatological presentations.
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