Search Results for: papillomatosis of gougerot-carteaud

Pigmented tumor in the nostril

Pigmented tumor in the nostril

…ronic inflammatory infiltration, with no evidence of cellular atypia. The epidermis revealed hyperkeratosis, acanthosis, and papillomatosis with a sharp dermarcation line. Polymerase chain reaction (PCR) for human papillomavirus (HPV) was negative….

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Benign, Pseudo, or Malignant Acanthosis Nigricans?

…m to possess a smooth, soft, and “velvety” quality. Acanthosis nigricans is characterized histopathologically by papillomatosis, i.e., extension of dermal papillae above the skin surface, and by a thin hyperpigmented epidermis. Based on…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…ucleate melanocyte that appears rarely in a melanocytic nevus, usually of Miescher’s type. Error: Lichenoid purpura of Gougerot and Blum is related in some way to mycosis fungoides. Reason: The two are unrelated, the former being an…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…goides; it may be met with in longstanding infiltrates of lymphocytes in inflammatory diseases such as the lichen purpura of Gougerot and Blum. 11.14.24A: Nodular dermatosis with psoriasiform changes + 11.14.24B: Abnormal lymphocytes, small…

Histologic Diagnosis of Inflammatory Skin Diseases

Prurigo pigmentosa

…stribution and, although not pruritic, at times are associated with paraesthesia. Confluent and reticulate papillomatosis of Gougerot and Carteaud: Typified by gray or brown papules whose surface is smooth and tend to become confluent to form a…

Condylomata lata on the ankle: an unusual location

Condylomata lata on the ankle: an unusual location

…ative. A biopsy sample was obtained from the larger nodule. The histopathological findings included irregular acanthosis and papillomatosis, a parakeratotic horny layer, and dense lymphocytic and plasma cell infiltration in the papillary and upper…

Differential Diagnosis in Dermatopathology

Sebaceous hyperplasia vs. Nevus sebaceus of Jadassohn

A malignant neoplasm of keratinocytes that when present as a keratotic macule or papule on skin damaged badly by sunlight is referred to as solar keratosis. When present as a plaque it is termed Bowen’s disease, and when present as many…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…er stages; no dell 2. Basket-woven pattern of the stratum corneum 2. Lamellate and compact pattern of the stratum corneum 3. Papillomatosis either absent or slight 3. Papillomatosis prominent in lesions developed fully 4. Several large sebaceous…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Dandruff a Disease?

…opic dermatitis, psoriasis, and –less commonly—with other dermatologic disorders such as confluent and reticulated papillomatosis, onychomycosis, and transient acantholytic dermatosis.” Gupta AK, Batra R, Bluhm R, et al. Skin…