Results 191 to 200 of about 14,282 (244)
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Solitary Intratarsal Blue Nevus
Ophthalmic Plastic & Reconstructive Surgery, 2022A 42-year-old woman presented with a small pigmented lesion of the palpebral conjunctiva that had been present for a few months. Because of the possibility of melanoma, the lesion was resected. Microscopic examination displayed an intratarsal blue nevus at the level of the meibomian glands comprised of bland nonpigmented and pigmented cells that ...
Norman C, Charles, Eleanore T, Kim
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Atypical Cellular Blue Nevus With Necrosis Mimicking Melanoma Ex-Blue Nevus
The American Journal of Dermatopathology, 2021Abstract: Histologic distinction between melanoma ex-blue nevus and cellular blue nevus (CBN) can often be difficult, but features supporting melanoma include infiltrative growth pattern, frequent mitoses, cytologic atypia and pleomorphism, cell crowding, and tumor necrosis.
Ania, Henning +3 more
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Amelanotic Blue Nevus: A Variant of Blue Nevus
The American Journal of Dermatopathology, 1999Blue nevi are typically heavily melanized. We report a variant of blue nevus that is minimally pigmented. Of the 1,358 blue nevi seen in our laboratory during the last 6 years, 38 (2.7%) were selected that had scant or absent melanin. We refer to these blue nevi as the amelanotic type. Approximately half of the cases in clinical diagnosis were nevus of
J, Bhawan, S L, Cao
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Blue nevus and “malignant blue nevus:” A concise review
Seminars in Diagnostic Pathology, 2016Blue nevi are a heterogeneous group of lesions that can display a variety of different clinicopathological characteristics. Although attempts are made to classify each lesion into defined subtypes, there can be overlap between the subtypes. The clinical and histolopathologic features of common blue nevi and cellular blue nevi are discussed, as well as ...
Jessica Zarah, Sugianto +4 more
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2007
According to the original description by Tieche [33], to which little can be added, blue nevus is a dermal-based, benign melanocytic lesion histopathologically made up by variable proportions of oval/spindle and bipolar, usually heavily pigmented dendritic cells (G. Ferrara et al., submitted) [37, 40].
Ferrara G., Argenziano G.
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According to the original description by Tieche [33], to which little can be added, blue nevus is a dermal-based, benign melanocytic lesion histopathologically made up by variable proportions of oval/spindle and bipolar, usually heavily pigmented dendritic cells (G. Ferrara et al., submitted) [37, 40].
Ferrara G., Argenziano G.
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Blue Nevus (“cellular” blue nevus)
2004The so called cellular blue nevus is a form of blue nevus which is composed of ovoid, pale, scarcely pigmented, non dendritic cells, while usually having at least a few dendritic, heavily pigmented melanocytes of the “common” form. These pale ovoid cells have a distinct inclination to aggregate in tightly packed round to oval nests. The term “cellular”
Guido Massi, Philip E. Leboit
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Blue Nevus(“Common” blue nevus)
2004The “common” blue nevus, is a benign neoplasm composed of dendritic melanocytes accompanied by numerous melanophages. The lesion is entirely contained in the dermis, without a junctional component. The common blue nevus constitutes a clinical and morphological continuum with the so called “cellular” blue nevus, discussed in the next chapter.
Guido Massi, Philip E. Leboit
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Journal of the American Podiatric Medical Association, 1995
Dermal melanocytes are generally most numerous in the sacral, dorsal hand, and dorsal foot. There is also a slight rise that often occurs toward the axial line of the trunk. The practitioner needs to be aware and take necessary measures to properly diagnose the blue nevus from other forms of pigmented skin lesion.
BC Valentine, FN Day, JJ Naples
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Dermal melanocytes are generally most numerous in the sacral, dorsal hand, and dorsal foot. There is also a slight rise that often occurs toward the axial line of the trunk. The practitioner needs to be aware and take necessary measures to properly diagnose the blue nevus from other forms of pigmented skin lesion.
BC Valentine, FN Day, JJ Naples
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Hypopigmented common blue nevus
Journal of Cutaneous Pathology, 1997Blue nevus is a benign pigmented lesion of dermal melanocytes with a number of histologic and clinical variants, of which the major types are the common blue nevus, cellular blue nevus and combined nevus.This study describes 9 cases of hypopigmented blue nevus (HBN), a variant of common blue nevus in which there is minimal identifiable melanin pigment.
S, Carr +3 more
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Archives of Dermatology, 1956
Junction activity is one of the well-recognized histologic features of primary malignant melanomas of skin and mucous membrane. Its absence in a pigmented tumor revealing cellular and nuclear pleomorphism, mitoses, and invasion is usually indicative of the metastatic nature of the neoplasm or represents a local recurrence.
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Junction activity is one of the well-recognized histologic features of primary malignant melanomas of skin and mucous membrane. Its absence in a pigmented tumor revealing cellular and nuclear pleomorphism, mitoses, and invasion is usually indicative of the metastatic nature of the neoplasm or represents a local recurrence.
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