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1.
Artículo | IMSEAR | ID: sea-223049

RESUMEN

Background: The role of dermoscopy in distinguishing the histopathological subtypes of basal cell carcinoma (BCC) is not fully elucidated. Aims: To determine the accuracy of dermoscopy in diagnosing different BCC subtypes. Methods: The dermoscopic features of 102 histopathologically verified BCCs were studied retrospectively. The tumours were classified as superficial (n=33,32.3%), nodular (n=46,45.1%) and aggressive (n=23,22.6%) BCCs by histopathology. Statistical analysis included Cohen’s kappa test, proportion of correlation, measures of diagnostic accuracy, diagnostic odds ratio and the credibility ratio of positive (LR+) and negative (LR?) tests. Results: The highest value in all performed tests was seen in superficial BCCs (kappa 0.85; proportion of correlation 93%; diagnostic accuracy 93.1%), good correlation was noted in nodular BCCs (kappa 0.62, proportion of correlation 80%; diagnostic accuracy 80.4%) but dermoscopic correlation with histopathology was low for aggressive BCCs (kappa 0.13; proportion of correlation 79%; diagnostic accuracy 78.4%). Short, fine telangiectasias (83.3%) showed the greatest importance for the diagnosis of superficial BCCs, blue-grey ovoid nests (61.8%) had the highest diagnostic accuracy in nodular BCCs, while arborising vessels (79.4%) was the most significant dermoscopic feature for the diagnosis of aggressive BCCs. Limitations: This was a retrospective analysis and included only Caucasian patients from a single centre. Conclusion: The highest agreement of dermoscopic features with the histologic type was found in superficial BCCs. We did not find any specific dermoscopic structure that could indicate a diagnosis of aggressive BCC. The presence of relevant dermoscopic features in the evaluated cases was determined by the depth of tumour invasion and not by its histology

2.
Indian J Dermatol Venereol Leprol ; 2012 May-Jun; 78(3): 407
Artículo en Inglés | IMSEAR | ID: sea-141111

RESUMEN

Congenital self-healing Langerhans cell histiocytosis (CSHLCH), also called as Hashimoto-Pritzker disease, is a rare, benign variant of histiocytosis. Despite the initial dramatic clinical presentation, affected infants are otherwise healthy and skin lesions disappear spontaneously within several weeks to months. We present a case of CSHLCH presenting as blueberry muffin baby. The lesions appeared in the first week of life and lasted 6 months. The follow-up period was 24 months, without any signs of relapse. At the pediatric dermatology unit of our clinic, during the last 20 years, we had 10 children with Langerhans cell histiocytosis and among them only one with CSHLCH. In the literature, we found only 5 newborns with Langerhans cell histiocytosis presenting as blueberry muffin baby, among them only 4 with self-healing CSHLCH. The early recognition of CSHLCH may spare children from redundant and potentially toxic systemic treatment.

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