Priscila Ishioka

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Background: Non pigmented eccrine poroma is a benign tumor that can have dermoscopic features mimicking malign neoplasias. The characteristic vascular pattern of this tumor hasn’t been established. We found a scarcely reported vascular pattern, which can be useful to distinguish this tumor from malignant ones and propose a new nomenclature to these vessels(More)
We examined the agreement between diagnoses of pigmented skin lesions based on an in-person (face-to-face) dermatological examination and diagnoses based on the study of medical records and images transferred through the web (teledermatoscopy). Two experienced dermatologists examined and diagnosed 64 pigmented skin lesions, which had been surgically excised(More)
Precancerous lesions and skin cancer are infrequent in Asians, and have received little documentation in the literature. Brazil has the world's largest contingent of Japanese immigrants and their descendants, and 70% live in the State of São Paulo. The prevalence of such skin lesions in Japanese-Brazilians is unknown. This study aimed to assess the(More)
Precancerous lesions and skin cancer are infrequent in Asians, and have received little documentation in the literature. Brazil has the world’s largest contingent of Japanese immigrants and their descendants, and 70% live in the State of São Paulo. The prevalence of such skin lesions in Japanese-Brazilians is unknown. This study aimed to assess the(More)
Pigmented Bowen's disease (PBD) is a variant of squamous cell carcinoma in situ and represents less than 2% of cases of Bowen's disease. It is characterized by a sharply demarcated, pigmented plaque with a scaly or crusted surface on intertriginous and genital areas. The authors describe a case of PBD on the penis and analyze the dermoscopic aspects of this(More)
The incidence of primary cutaneous malignant melanoma (MM) has been rapidly growing during the last decades with only a small rise in overall mortality. MM accounts for most of the deaths from skin malignancies due to its metastatic potential. However, early detection and wide surgical excision with histologically negative margins are nearly always curative(More)
The aim of this study was to evaluate the practical importance of the presence of shiny white streaks (SWS) (chrysalis or crystalline structures in polarized dermoscopy) for suspicion of malignancy, diagnosis of melanoma, and pre-operative estimation of Breslow thickness and its correlation with total dermoscopy score (TDS). SWS were present in 13.6% of 800(More)
BACKGROUND Histological examination is the gold standard for actinic keratosis diagnosis; however, it is not always a feasible approach. Reflectance confocal microscopy (RCM) is a non-invasive technique that may be an alternative for monitoring actinic keratoses treatment response. Topical 5-fluorouracil is indicated for actinic keratosis multiple lesions(More)
In order to determine dermoscopic parameters, a case-control test set of naevus-associated melanomas vs de novo melanomas paired by Breslow thickness and histopathological subtype was analysed by 2 blinded experienced dermoscopists, according to presence of naevus, pattern analysis and ABCD dermoscopy score. The ability to identify naevus-associated(More)
Topical treatment for actinic keratosis with 5% fluorouracil has a recurrence rate of 54% in 12 months of follow-up. This study analyzed thirteen actinic keratoses on the upper limbs through confocal microscopy, at the time of clinical diagnosis and after 4 weeks of treatment with fluorouracil. After the treatment was established and evidence of clinical(More)