Hutchinson Sign: Biopsy May Assist in Diagnosis of Subungual Melanoma in Situ.
Dermatol Surg
; 48(1): 28-31, 2022 01 01.
Article
en En
| MEDLINE
| ID: mdl-34608084
ABSTRACT
BACKGROUND:
Early and accurate diagnosis of subungual melanoma (SUM) through histopathologic examination is critical, but lack of clinical suspicion leads to delays in diagnosis. Hutchinson sign (HS) can be one of the important clinical indicators for diagnosing SUM.OBJECTIVE:
To evaluate the diagnostic value of small biopsies of HS for detecting SUM in situ.METHODS:
We retrospectively evaluated 12 patients who were diagnosed as SUM in situ and underwent punch biopsy at HS areas. Clinical features, dermoscopic findings, and histopathologic findings in HS regions were analyzed.RESULTS:
In most cases, HS was seen in hyponychium (11/12, 91.7%) with 1 case found in proximal nail fold, and 1 case in both the hyponychium and proximal nail fold. Dermoscopic features of HS showed irregular diffuse pigmentation (12/12, 100%) and parallel ridge pattern (7/12, 58.3%). Histopathologically, all cases showed irregularly scattered atypical melanocytes with hyperchromatic nuclei. Two cases showed subtle changes in melanocytes with little nuclear atypia, but additional section specimen showed more definitive findings of SUM in situ.CONCLUSION:
We present a supplementary biopsy technique for diagnosing SUM. Biopsy of HS may help in the diagnosis of SUM.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Neoplasias Cutáneas
/
Melanoma
/
Enfermedades de la Uña
/
Uñas
Tipo de estudio:
Diagnostic_studies
/
Observational_studies
Límite:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
País/Región como asunto:
Asia
Idioma:
En
Revista:
Dermatol Surg
Asunto de la revista:
DERMATOLOGIA
Año:
2022
Tipo del documento:
Article