1-20 of 243

Search Results for nevus

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Book Chapter

Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 22
Published: 01 June 2025
10.55418/9781933477619-8
ISBN: 978-1-933477-61-9
..., while nodular melanomas tend to have a much more vertical invasive pattern. Many melanomas arise within a preexisting nevus that undergoes malignant transformation through acquisition of a number of mutations, most commonly BRAF, but CDKN2A, PTEN, TP53, and TERT promoter...
Book Chapter

Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 22
Published: 01 June 2025
10.55418/9781933477619-5
ISBN: 978-1-933477-61-9
.... Approximately 5 percent of patients with OKCs have the nevoid basal cell carcinoma syndrome (NBCCS), also termed basal cell nevus syndrome, Gorlin syndrome, and Gorlin-Goltz syndrome. Syndromic cysts are invariably multiple and occur at younger ages. The NBCCS is an autosomal dominantly inherited syndrome...
Book Chapter

Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 22
Published: 01 June 2025
10.55418/9781933477619-1
ISBN: 978-1-933477-61-9
... or from melanocytic cells in the stroma. Within the sinonasal tract and nasopharynx, a precursor lesion is not identified (i.e., preexisting nevus) with melanomas arising de novo. Cutaneous metastasis or direct extension from overlying skin is an exceptional event. Mucosal sites within the head and neck...
Images
Figure 4-22
Published: 01 December 2024
COMPLEX OF MYXOMA AND SPOTTY PIGMENTATION Figure 4-22 COMPLEX OF MYXOMA AND SPOTTY PIGMENTATION A: A young girl with multiple pigmented lesions about the mouth. The patient also had a darkly pigmented lesion on the vulva, probably a blue nevus. B: Cutaneous myxoma on the breast of the same More about this image found in COMPLEX OF MYXOMA AND SPOTTY PIGMENTATION A: A young girl with multiple pi...
Book Chapter

Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 21
Published: 01 December 2024
10.55418/9781933477473-04
ISBN-10: 1-933477-47-4
ISBN: 978-1-933477-47-3
... PIGMENTATION Figure 4-22 COMPLEX OF MYXOMA AND SPOTTY PIGMENTATION A: A young girl with multiple pigmented lesions about the mouth. The patient also had a darkly pigmented lesion on the vulva, probably a blue nevus. B: Cutaneous myxoma on the breast of the same patient, who also had a cardiac myxoma...
Book Chapter

Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-09
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
...Table 9-1 FEATURES OF DEEP PENETRATING NEVUS Clinical Features  Brown or bluish-black macule or papule  Usually present in young individuals, but can occur at any age Histopathologic Findings  Symmetric silhouette, often in the shape of an inverted triangle (wedge-shaped...
Book Chapter

Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-18
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
...Table 18-1 FEATURES OF BLUE NEVUS-RELATED MELANOMA Clinical Features  Most often located on the scalp, but may occur anywhere  There may be a history of a blue nevus that has changed Histopathologic Findings  Fascicles of spindle cells with tumor overgrowth (loss...
Images
Figure 9-4
Published: 01 February 2024
DEEP PENETRATING NEVUS ASSOCIATED WITH A CONVENTIONAL NEVUS (COMBINED NEVUS) Figure 9-4 DEEP PENETRATING NEVUS ASSOCIATED WITH A CONVENTIONAL NEVUS (COMBINED NEVUS) This lesion is limited to the papillary and superficial reticular dermis. More about this image found in DEEP PENETRATING NEVUS ASSOCIATED WITH A CONVENTIONAL NEVUS (COMBINED NEVUS...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-10
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
...Table 10-1 VARIANTS OF COMBINED NEVI Combined deep penetrating nevus Combined inverted type A nevus Combined blue nevus Combined spitzoid nevus a Combined desmoplastic nevus Combined neurotized nevus Combined balloon cell nevus Combined pigmented epithelioid...
Book Chapter

Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-03
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
...Table 3-1 FEATURES OF ORDINARY ACQUIRED NEVUS Clinical Features  Size: usually <4 mm  Appearance: circumscribed flat macule, dome-shaped papule, or polypoid  Color: variable: skin-colored, red or brown; usually homogeneous and symmetric  Dermoscopy: reticular and/or globular...
Book Chapter

Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-04
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
...DYSPLASTIC NEVUS Figure 4-1 DYSPLASTIC NEVUS A: Multiple red and brown lesions are present on the upper back shoulder. The arrow points to a lesion, which was excised, and the diagnosis histopathologically confirmed as dysplastic nevus. B: The lesion has a diameter of more than 4 mm...
Images
Figure 6-8
Published: 01 February 2024
NONSURGICALLY TRAUMATIZED MELANOCYTIC NEVUS (NO RECOLLECTION OR DOCUMENTATION OF PRIOR BIOPSY) Figure 6-8 NONSURGICALLY TRAUMATIZED MELANOCYTIC NEVUS (NO RECOLLECTION OR DOCUMENTATION OF PRIOR BIOPSY) A: A compound melanocytic nevus with a trizonal pattern is characterized by architectural More about this image found in NONSURGICALLY TRAUMATIZED MELANOCYTIC NEVUS (NO RECOLLECTION OR DOCUMENTATI...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-07
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
...Table 7-1 HISTOPATHOLOGIC VARIANTS OF SPITZ NEVUS Morphologic Variant Microscopic Characteristics Angiomatoid Spitz nevus Spitz nevus associated with vascular proliferation with dilated vessels Desmoplastic Spitz nevus Spitz nevus associated with prominent stromal sclerosis...
Images
Figure 18-3
Published: 01 February 2024
MELANOMA ASSOCIATED WITH A PLAQUE BLUE NEVUS Figure 18-3 MELANOMA ASSOCIATED WITH A PLAQUE BLUE NEVUS A: Large, heavily pigmented tumor is composed of spindle and epithelioid melanocytes with areas of necrosis. B: Cytology of the tumor cells. C: The melanoma nodule (*) is located near More about this image found in MELANOMA ASSOCIATED WITH A PLAQUE BLUE NEVUS A: Large, heavily pigmented t...
Images
Figure 10-13
Published: 01 February 2024
COMBINED NEUROTIZED NEVUS Figure 10-13 COMBINED NEUROTIZED NEVUS This biphenotypic congenital nevus has a superficial conventional nevus cell population (arrow) and a deep dermal nodule of fusiform melanocytes with schwannian features (*). More about this image found in COMBINED NEUROTIZED NEVUS This biphenotypic congenital nevus has a superfi...
Images
Figure 5-9
Published: 01 February 2024
SCALP NEVUS Figure 5-9 SCALP NEVUS A: The compound nevus displays plaque-like growth and has a junctional shoulder. B: It contains areas displaying features of a dysplastic nevus with fusion of nests, random atypia, and stromal fibrosis. More about this image found in SCALP NEVUS A: The compound nevus displays plaque-like growth and has a ju...
Images
Figure 3-13
Published: 01 February 2024
MELANOCYTIC NEVUS WITH EDEMA Figure 3-13 MELANOCYTIC NEVUS WITH EDEMA A: Compound melanocytic nevus with prominent edema of its dermal stroma. B: Cytologically bland dermal melanocytes are separated by an edematous stroma. More about this image found in MELANOCYTIC NEVUS WITH EDEMA A: Compound melanocytic nevus with prominent ...
Images
Figure 3-17
Published: 01 February 2024
MELANOCYTIC NEVUS WITH MITOSES Figure 3-17 MELANOCYTIC NEVUS WITH MITOSES A: Silhouette of a melanocytic nevus that had grown during pregnancy. B: Most of the melanocytes are seen in the dermis, but there is also a junctional proliferation of melanocytes. C: A few mitotic figures are seen More about this image found in MELANOCYTIC NEVUS WITH MITOSES A: Silhouette of a melanocytic nevus that h...
Images
Figure 4-6
Published: 01 February 2024
INFLAMED DYSPLASTIC NEVUS Figure 4-6 INFLAMED DYSPLASTIC NEVUS The compound nevus displays features of a dysplastic nevus (e.g., fusion of junctional nests) and is associated with a dense band-like lymphocytic infiltrate involving the dermoepidermal junction and superficial dermis. More about this image found in INFLAMED DYSPLASTIC NEVUS The compound nevus displays features of a dyspla...
Images
Figure 5-5
Published: 01 February 2024
VULVAR NEVUS Figure 5-5 VULVAR NEVUS A: Compound nevus with nests at the dermoepidermal junction that vary in size and shape and are focally confluent. There is a mixed population of melanocytes in the dermis composed of larger (*) and smaller cells (arrow). B: There are areas of stromal More about this image found in VULVAR NEVUS A: Compound nevus with nests at the dermoepidermal junction t...