Results 11 to 20 of about 14,282 (244)

Compound blue nevus: A misleading pigmented melanocytic tumor [PDF]

open access: goldClinical Case Reports, 2022
Compound blue nevus had clinical and histological similarities with other heavily pigmented melanocytic tumor, like the pigmented epithelioid melanocytoma. Distinctive genomic aberrations have allowed differentiating it.
Massara Baklouti   +11 more
doaj   +3 more sources

Nodal Cellular Blue Nevus in Sentinel Lymph Node Biopsy: A Case Report With Emphasis on Avoiding Misdiagnosis of This Important Mimicker of Metastatic Melanoma. [PDF]

open access: hybridJ Cutan Pathol
ABSTRACT Melanoma arising in blue nevus (MBN) is a rare, aggressive malignancy that can develop from a preexisting blue nevus or resemble a cellular blue nevus without a clear precursor. We present a diagnostically challenging case of MBN on the foot of a 13‐year‐old female, with two sentinel lymph nodes (SLNs) showing heavily pigmented cells within ...
Velez K   +6 more
europepmc   +4 more sources

[Translated article] Melanoma Arising in Plaque-Type Blue Nevus and Dermal Melanocytosis: Diagnostic and Prognostic Value of BAP1

open access: goldActas Dermo-Sifiliográficas, 2023
Melanoma arising in blue nevus, also known as melanoma ex blue nevus, is a specific form of melanoma whose genetic profile is different to that of other cutaneous melanomas and surprisingly similar to that of uveal melanoma.
C. Requena   +8 more
doaj   +2 more sources

Malignant blue nevus [PDF]

open access: bronzeCancer, 1991
To elucidate the histologic features and biologic behavior of malignant blue nevus (MBN), 12 cases were analyzed in which the tumor showed no junctional activity and arose in a blue nevus background. Seven patients were men and five were women; their mean age was 48.8 years.
J, Connelly, J L, Smith
openaire   +3 more sources

A Rare Case of Multifocal Prostatic Blue Nevus [PDF]

open access: yesCase Reports in Urology, 2018
Prostatic blue nevus is a rare benign pathologic diagnosis most commonly diagnosed incidentally on many different types of prostate specimens. Blue nevus is the deposition of stromal melanin characterized by spindle cells within the fibromuscular stroma ...
Elias J. Farran   +4 more
doaj   +2 more sources

The usefulness of c-Kit in the immunohistochemical assessment of melanocytic lesions [PDF]

open access: yesEuropean Journal of Histochemistry, 2011
C-Kit (CD117), the receptor for the stem cell factor, a growth factor for melanocyte migration and proliferation, has shown differential immunostaining in various benign and malignant melanocytic lesions.
L. Pilloni   +9 more
doaj   +3 more sources

Congenital plaque-type blue nevus on the palm of the right hand: a rare case report [PDF]

open access: yesFrontiers in Pediatrics
Plaque-type blue nevus (PTBN) is a rare variant of blue nevus that mostly involves the breast, head, neck, trunk, and, rarely, the hand and palm. In this study, we report a rare case of congenital PTBN involving the right palm since birth.
Lin Qi   +4 more
doaj   +2 more sources

Unusual melanoma of the scalp with blue nevus-like features and local metastasis: A case report [PDF]

open access: yesSAGE Open Medical Case Reports, 2019
We present an unusual case of melanoma in a 76-year-old female covering approximately 80% of her scalp. Partial sampling of the lesion revealed focal blue nevus-like features at the microscopic level.
Sheenagh JK George   +2 more
doaj   +2 more sources

Metastatic melanoma with features of blue nevus and tumoral melanosis identified during pembrolizumab therapy [PDF]

open access: yesJAAD Case Reports, 2017
Metastatic melanoma may exhibit clinical or histologic features of blue nevus. Pembrolizumab therapy is associated with regression and tumoral melanosis.
Matthew F. Helm, MD   +3 more
doaj   +2 more sources

Cellular Blue Nevus Diagnosed following Excision of Melanoma: A Challenge in Diagnosis [PDF]

open access: yesCase Reports in Pathology, 2016
A case of a 41-year-old woman with a history of nodular melanoma (NM), associated with an indurated dome-shaped blue-black nodule with a diameter of 1.2 cm in the gluteal region, is presented.
Nives Jonjić   +4 more
doaj   +2 more sources

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