A Case of Nonpedal Subcorneal Haematoma Mimicking Melanoma
Mengya Shang, Haiyang He, Weihua Pan, Chao Zhang · 2026
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Description
Mengya Shang and co-authors present a 2026 dermatology case report of a blood blister under the skin's surface layer that impersonated melanoma for a year. Such haematomas usually sit on heels after friction; this one grew on a finger with no injury at all.
The patient, a 75-year-old woman, had a firm blue-black nodule, a third of a centimetre wide, on the back of her left middle finger. It could not be scraped away and lacked the usual dermoscopic signs of trapped blood. Only biopsy settled the question, showing a small cavity in the outer skin layer filled with blood debris. The authors blame slow haemoglobin breakdown and trapped keratin for the lesion's persistence and warn that atypical sites can mislead clinicians into surgery.
Catalog record
| CREATOR | Mengya Shang, Haiyang He, Weihua Pan, Chao Zhang |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 4 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |