Histopathological diagnosis of small melanocytic lesions suspicious for malignant melanoma
An. bras. dermatol
; 92(3): 375-378, May-June 2017. tab, graf
Article
in En
| LILACS
| ID: biblio-886959
Responsible library:
BR1.1
ABSTRACT
Abstract The concern about malignant skin neoplasms leads to the excision of smaller lesions. This study on small melanocytic lesions aims to evaluate the range of possible histopathological diagnoses, describe histopathological aspects, and assess the usefulness of serial histological sections. We performed a cross-sectional descriptive histopathological study examining 76 pigmented skin lesions up to 6 mm in diameter. Histopathological diagnoses included atypical melanocytic nevi (n=38), common melanocytic nevi (n=18), atypical lentiginous melanocytic hyperplasia with architectural features of atypical melanocytic nevi (n=7), lentigo simplex (n=2), and malignant melanoma (n=1). Ten cases were non-diagnostic. Cytological atypia was not an exclusive finding of atypical lesions. Examination of serial sections did not change histopathological impression. Early detection of malignant melanoma is important, but clinical and dermoscopy exams may be leading to the resection of a great number of benign lesions. Strict attention to histopathological criteria results in a large number of non-diagnostic cases.
Key words
Full text:
1
Index:
LILACS
Main subject:
Skin Neoplasms
/
Melanoma
/
Nevus
Type of study:
Diagnostic_studies
/
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
/
Screening_studies
Limits:
Adolescent
/
Adult
/
Aged
/
Aged80
/
Child
/
Female
/
Humans
/
Male
Language:
En
Journal:
An. bras. dermatol
Journal subject:
DERMATOLOGIA
Year:
2017
Type:
Article