Large-cell acanthoma
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| Large-cell acanthoma | |
|---|---|
| Synonyms | |
| Pronounce | N/A |
| Specialty | N/A |
| Symptoms | Skin lesion |
| Complications | |
| Onset | |
| Duration | |
| Types | N/A |
| Causes | Unknown |
| Risks | |
| Diagnosis | Skin biopsy |
| Differential diagnosis | Seborrheic keratosis, Actinic keratosis |
| Prevention | |
| Treatment | Cryotherapy, Laser therapy, Surgical excision |
| Medication | |
| Prognosis | |
| Frequency | |
| Deaths | |
Large-cell acanthoma is a benign skin lesion that is characterized by its large, pale-staining keratinocytes. It is a rare condition that is often mistaken for other skin conditions, such as actinic keratosis or squamous cell carcinoma.
History[edit]
Large-cell acanthoma was first described in 1968 by the dermatologist Robert Degos. It was initially thought to be a variant of seborrheic keratosis, but further studies have shown that it is a distinct entity.
Characteristics[edit]
Large-cell acanthoma typically presents as a solitary, well-demarcated, flat or slightly raised lesion. It is usually found on sun-exposed areas of the body, such as the face, neck, and arms. The lesion is often asymptomatic, but it may cause mild itching or discomfort. Histologically, large-cell acanthoma is characterized by an increased number of large, pale-staining keratinocytes in the epidermis. These cells are larger than the surrounding keratinocytes and have a clear or pale cytoplasm. The dermis underneath the lesion may show signs of solar elastosis, indicating chronic sun damage.
Diagnosis[edit]
The diagnosis of large-cell acanthoma is usually made based on the clinical appearance of the lesion and the histological findings. A skin biopsy may be performed to confirm the diagnosis and to rule out other skin conditions.
Treatment[edit]
Treatment for large-cell acanthoma is usually not necessary, as the condition is benign and does not pose a risk for malignancy. However, if the lesion is bothersome or cosmetically unacceptable, it can be removed by surgical excision or cryotherapy.
See also[edit]
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