Search Results for: keratosis

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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….

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…

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….

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…

Confusion—specimen mix-up in dermatopathology and measures to prevent and detect it

Confusion—specimen mix-up in dermatopathology and measures to prevent and detect it

…longated rete ridges bent toward the center of the lesion, papillomatosis, hypergranulosis with koilocytes, and compact orthokeratosis with narrow columns of parakeratosis above elongated papillae. In addition to two sections of the wart, there is…

See Classification of Pigmented Lesions

See Classification of Pigmented Lesions

…evus, papillary dermal type Nevoid hyperkeratosis of the nipple Benign neoplasms Solar lentigo, including lichen planus-like keratosis Seborrheic keratosis Malignant neoplasms Basal cell carcinoma, pigmented Solar keratosis, pigmented Melanocytic…

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