Differential Diagnosis in Dermatopathology

Differential Diagnosis

Pagetoid Bowens disease Extramammary Paget’s disease 1. Parakeratosis usual 1. Orthokeratosis usual 2. No abnormal pale cells in the stratum corneum 2. Abnormal pale cells in the stratum corneum often 3. Epithelial cells with ab…

Differential Diagnosis in Dermatopathology

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Pagetoid Bowens disease Extramammary Paget’s disease

Differential Diagnosis in Dermatopathology

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Solar keratosis Bowens disease

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Solar keratosis Bowens disease 1. Arranged usually in buds or nubbins of epidermis 1. Arranged usually in broadened rete ridges 2. Alternation of ortho- and parakeratosis in fashion repeatable 2. No alternation of ortho- and parakerato…

Dermatology Practical & Conceptual

An atypical pigmented lesion on the nose—Answer

…and conjunctiva [3]. Pigmentation is probably due to cytokines secreted by tumoral cells that stimulate melanocytes to produce melanin [4]. In some cases, PCSCC may be the malignant progression of a pigmented actinic keratosis or a pigmented Bowens

Differential Diagnosis in Dermatopathology

Discussions

…t remarkably common “keratosis” actually is a very superficial squamous-cell carcinoma, just as are arsenical keratosis, radiation keratosis, Bowens disease, bowenoid papulosis, erythroplasia of Queyrat, and actinic cheilitis, all…

Differential Diagnosis in Dermatopathology

Discussions

…cytes, and melanophages. In some instances, albeit uncommon, a superficial basal-cell carcinoma may progress to become a nodular basal-cell carcinoma. Patches and plaques of superficial basal cell carcinoma may mimic Bowens disease (one type o…