Search Results for: clark-like nevus

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

A hamartoma of epidermis, epithelial structures of adnexa, and presumably dermal elements, typified, when fully formed, by a papillated or verrucous yellowish plaque situated usually on the scalp. The condition may present itself as a solitary…

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…

Spitz nevus on the sole of a foot presenting with transepidermal elimination

Spitz nevus on the sole of a foot presenting with transepidermal elimination

…lls were atypical, and maturation of the cells with increasing depth was observed. From these findings, a diagnosis of Spitz nevus was made. Transepidermal elimination of nevus cell nests was observed and there were small groups of degenerated…

Clinical Case Studies

Nevus of Ota

…ciated change in skin texture. No scleral pigment was noted. Figure 1. Nevus of Ota at patient’s initial presentation. Nevus of Ota was suspected because of the history and morphology. Nevus of Ota is a dermal melanocytic disorder that…

Nail apparatus melanoma initially diagnosed as nail matrix blue nevus: a case report with dermatoscopy and dermatopathology

Nail apparatus melanoma initially diagnosed as nail matrix blue nevus: a case report with dermatoscopy and dermatopathology

…t of the dense melanin deposition and equivocal dermal melanocyte cytology, an initial dermatopathological diagnosis of blue nevus was rendered. Blue nevi are expected to appear on the skin at mature age, but by the time they are observed they are…