Search Results for: keratosis

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Histologic Diagnosis of Inflammatory Skin Diseases

Images

…se, not of Darier’s disease. 10.44.20A: Perivascular dermatitis, patchy lichenoid + 10.44.20B: Foci of acantholytic dyskeratosis and parakeratosis = Grover’s disease In a section comparable of Darier’s disease, acantholytic…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

keratosis with lichenoid infiltrate of lymphocytes 1. Crusts often 1. No crusts in non-traumatized lesions 2. Ortho- and parakeratosis not arranged in discrete columns 2. Ortho- and parakeratosis alternate with one another in discrete columns 3….

Differential Diagnosis in Dermatopathology

Pigmented Lesions

…ested by necrotic keratocytes, some of them in clusters at times, and by changes in the cornified layer, one often being parakeratosis. Seborrheic keratosis (26, 49, 506, 507, 508, 509) An epidermis thickened by two populations of cells, namely,…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Ichthyoses?

…conditions reputed to be ichthyoses, but that are not. In all authentic ichthyoses, the cornified layer is thickened by orthokeratosis and is devoid of parakeratosis. The orthokeratotic cells are arranged in laminated fashion mostly and are aligned…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Radial Growth Phase versus Vertical Growth Phase of Melanoma?

…8220;expansile nodule”), that being a sign for the fraternity of “vertical growth phase,” or where a solar keratosis ends and a squamous-cell carcinoma begins; solar keratosis is a superficial squamous-cell carcinoma. These…

Histologic Diagnosis of Inflammatory Skin Diseases

Post-inflammatory pigmentary alteration

…ace type, is the cause. Lymphocytes also mediate postinflammatory changes in regression of solar lentigo (lichen planus-like keratosis), melanoma, and mycosis fungoides (e.g., poikiloderma vasculare atrophicans). Comment Postinflammatory pigmentary…

Pseudofolliculitis barbae: a dermatoscopic correlate

Pseudofolliculitis barbae: a dermatoscopic correlate

…s would be expected instead of the random cluster of straight red lines. Thick curved lines are typically seen in seborrheic keratosis. The gray and blue colors are consistent with melanin contained within the pigmented hair shaft in the dermis….

The dermatologist’s stethoscope-traditional and new applications of dermoscopy

The dermatologist’s stethoscope-traditional and new applications of dermoscopy

…cers. Eur J Dermatol. 2012;22(4):456-63. CrossRef 3. Zalaudek I, Giacomel J, Schmid K, et al. Dermatoscopy of facial actinic keratosis, intraepidermal carcinoma, and invasive squamous cell carcinoma: a progression model. J Am Acad Dermatol….

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