Journal article
Dermoscopy of pigmented seborrheic keratosis: a morphological study.
- Braun RP Pigmented Skin Lesion Clinic, Department of Dermatology, University Hospital Geneva, Switzerland. braun@melanoma.ch
- Rabinovitz HS
- Krischer J
- Kreusch J
- Oliviero M
- Naldi L
- Kopf AW
- Saurat JH
- 2002-12-11
Published in:
- Archives of dermatology. - 2002
Biopsy, Needle
Cohort Studies
Dermatology
Diagnosis, Differential
Female
Humans
Incidence
Keratosis, Seborrheic
Male
Melanoma
Prognosis
Prospective Studies
Risk Assessment
Severity of Illness Index
Skin Neoplasms
English
OBJECTIVES
To describe morphological features of seborrheic keratosis as seen by dermoscopy and to investigate their prevalence.
DESIGN
Prospective cohort study using macrophotography and dermoscopy for the documentation of seborrheic keratosis.
SETTINGS
Seborrheic keratoses were prospectively collected in 2 sites: a private practice in Plantation, Fla (site 1), and the Department of Dermatology at the University Hospital Geneva in Switzerland (site 2).
PATIENTS
A total of 203 pigmented seborrheic keratoses (from 192 patients) with complete documentation were collected (111 from site 1 and 93 from site 2).
INTERVENTIONS
Screening for new morphological features of seborrheic keratosis and evaluation of all lesions for the prevalence of these criteria.
MAIN OUTCOME MEASURES
Identification of new morphological criteria and evaluation of frequency.
RESULTS
A total of 15 morphological dermoscopic criteria were identified. Standard criteria such as milialike cysts and comedolike openings were found in a high number of cases (135 and 144, respectively). We found network and networklike structures to be present in 94 lesions (46%). Using standard diagnostic criteria for seborrheic keratosis, 30 lesions would not have been diagnosed as such.
CONCLUSIONS
The classic dermoscopic criteria for seborrheic keratosis (milialike cysts and comedolike openings) have a high prevalence but the use of additional dermoscopic criteria such as fissures, hairpin blood vessels, sharp demarcation, and moth-eaten borders improves the diagnostic accuracy. The proper identification of pigment network and networklike structures is important for the correct diagnosis.
To describe morphological features of seborrheic keratosis as seen by dermoscopy and to investigate their prevalence.
DESIGN
Prospective cohort study using macrophotography and dermoscopy for the documentation of seborrheic keratosis.
SETTINGS
Seborrheic keratoses were prospectively collected in 2 sites: a private practice in Plantation, Fla (site 1), and the Department of Dermatology at the University Hospital Geneva in Switzerland (site 2).
PATIENTS
A total of 203 pigmented seborrheic keratoses (from 192 patients) with complete documentation were collected (111 from site 1 and 93 from site 2).
INTERVENTIONS
Screening for new morphological features of seborrheic keratosis and evaluation of all lesions for the prevalence of these criteria.
MAIN OUTCOME MEASURES
Identification of new morphological criteria and evaluation of frequency.
RESULTS
A total of 15 morphological dermoscopic criteria were identified. Standard criteria such as milialike cysts and comedolike openings were found in a high number of cases (135 and 144, respectively). We found network and networklike structures to be present in 94 lesions (46%). Using standard diagnostic criteria for seborrheic keratosis, 30 lesions would not have been diagnosed as such.
CONCLUSIONS
The classic dermoscopic criteria for seborrheic keratosis (milialike cysts and comedolike openings) have a high prevalence but the use of additional dermoscopic criteria such as fissures, hairpin blood vessels, sharp demarcation, and moth-eaten borders improves the diagnostic accuracy. The proper identification of pigment network and networklike structures is important for the correct diagnosis.
- Language
-
- English
- Open access status
- bronze
- Identifiers
-
- DOI 10.1001/archderm.138.12.1556
- PMID 12472342
- Persistent URL
- https://sonar.ch/global/documents/152631
Statistics
Document views: 16
File downloads: