Search Results for: clark-like nevus

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Basal-Cell Carcinoma Common in Nevus Sebaceus?

…s reported as high as 20%., Recent studies, however, indicate that the majority of cases of basal cell carcinomas arising in nevus sebaceus are more accurately classified as benign trichoblastoma-like lesions, although authentic basal cell carcinoma…

The long history of a melanoma associated with a congenital large plaque type blue nevus with subcutaneous cellular nodules

The long history of a melanoma associated with a congenital large plaque type blue nevus with subcutaneous cellular nodules

…lue nevi are summarized in Table 1. The greatest controversies are related to the existence of three entities: atypical blue nevus, malignant blue nevus and metastasizing blue nevus, that some authors have deleted from medical terminology [7]. Table…

The mythical concept and untoward consequences of a diagnosis of dysplastic nevus: an overdue tribute to A. Bernard Ackerman, MD

The mythical concept and untoward consequences of a diagnosis of dysplastic nevus: an overdue tribute to A. Bernard Ackerman, MD

…nevi [15] and a variety of melanomas, e.g., melanoma in situ, superficial melanoma, and melanoma, but there is no dysplastic nevus. Likely causes for the formation of false mythical conclusions operative in this untoward and ill-fated issue are the…

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen planus-like keratosis

…iltrates of lymphocytes or, more compellingly, presenting itself uncompromised at the periphery of the lesion. Lichen planus-like keratosis, like solar keratosis, invariably occurs on skin damaged badly by sunlight as evidenced by copious quantities…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Junctional Activity and Active Junctional Nevus?

…to the end of his life in the 1990s. Remarkably, however, every photomicrograph chosen by Allen to depict active junctional nevus showed indubitable signs of melanoma in situ. That Allen knew the “active nevus” truly was melanoma can be…

Differential Diagnosis in Dermatopathology

Dermatofibroma vs. Desmoplastic Spitz’s nevus

Papules, nodules, and tumors that, on gross examination, are usually skin colored and, on histopathologic examination, consist of an epithelium-lined sac that contains fluid, cells, or both in the case of true cysts and of cysts that are associated…

Comparison of dermatoscopic images of acral lentiginous melanoma and acral melanocytic nevus occurring on body weight-bearing areas

Comparison of dermatoscopic images of acral lentiginous melanoma and acral melanocytic nevus occurring on body weight-bearing areas

…a parallel ridge pattern (PRP), with a specificity of 99% and a sensitivity of 86% [1,4]. In contrast, the acral melanocytic nevus shows a parallel furrow pattern (PFP, 54%), lattice-like pattern (21%), or fibrillar pattern (FP, 15%) [5,6]. The…