Results: 156

Papilas Fungiformes Pigmentadas de la Lengua. Características Clínicas, Histológicas y Dermatoscópicas de una Serie de Casos Ecuatorianos

RESUMEN: Las papilas fungiformes pigmentadas de la lengua, cuyas siglas son PFPT, del inglés Pigmented fungiform papillae of the tongue, es una condición asintomática, no progresiva que se presenta en personas de piel oscura, en las cuales las papilas fungiformes cambian de su color rosado natural, a ...

Melanocitosis dérmica adquirida en la mano de un paciente pediátrico

Resumen Introducción: Las melanocitosis dérmicas son un grupo de enfermedades dermatológicas pigmentarias asociadas con la proliferación melanocítica. Se clasifican con base en su número y localización profunda a nivel de la dermis; pueden ser congénitas o adquiridas. Caso clínico: Paciente ...

Actinic keratoses: review of clinical, dermoscopic, and therapeutic aspects

An. bras. dermatol; 94 (6), 2019
Abstract Actinic keratoses are dysplastic proliferations of keratinocytes with potential for malignant transformation. Clinically, actinic keratoses present as macules, papules, or hyperkeratotic plaques with an erythematous background that occur on photoexposed areas. At initial stages, they may be bett...

Melanoacanthoma: a potential pitfall of reflectance confocal microscopy

An. bras. dermatol; 94 (6), 2019
Abstract Melanoacanthoma is a rare variant of seborrheic keratosis, which is notable for dark pigmentation and fast radial growth, making it difficult to distinguish from melanoma. Histologically, it is characterized by proliferation of keratinocytes and dendritic melanocytes. The authors report a scalp ...

Horizontal histological sections in the preliminary evaluation of basal cell carcinoma submitted to Mohs micrographic surgery

An. bras. dermatol; 94 (6), 2019
Abstract Background: Mohs micrographic surgery is a surgical technique for the treatment of nonmelanoma skin cancer. Surgery begins by removing the visible tumor before excision of the tissue specimens for evaluation of the tumor margins. Objectives: To present a new way to evaluate the material obtain...

Granulomatous pigmented purpuric dermatosis: report of a Latin-American case with blaschkoid distribution

An. bras. dermatol; 94 (5), 2019
Abstract Granulomatous pigmented purpuric dermatosis clinically manifests as hyperpigmented maculae and petechiae, predominantly on the lower extremities. Histopathologically, it is characterized by a lymphocytic infiltrate in the upper dermis, extravasated erythrocytes, and hemosiderin deposits. There i...

Dermoscopy - a simple and rapid in vivo diagnostic technique for tinea incognito

An. bras. dermatol; 94 (5), 2019
Abstract Tinea incognito resulting from corticosteroid abuse is becoming very common in the tropics. Its diagnosis is tricky owing to its confusing morphology, as well as practical and technical issues associated with mycological tests. Dermoscopy has now evolved as a novel diagnostic tool for diagnosing...

Sebaceoma on the scalp simulating a malignant pigmented neoplasia

An. bras. dermatol; 94 (5), 2019
Abstract The correct identification of pigmented nodular lesions of the scalp is often challenging. Despite the importance of clinical patterns and dermoscopy, important adjuvant tools that are usually helpful, their interpretation sometimes is not clear-cut. Here, the authors discuss a case of sebaceoma...

Trichoscopy findings in dissecting cellulitis

An. bras. dermatol; 94 (5), 2019
Abstract Dissecting cellulitis is an inflammatory, chronic, and recurrent disease of the hair follicles that mainly affects young Afro-descendent men. Trichoscopy is a method of great diagnostic value for disorders of the scalp. Clinical and trichoscopic findings of dissecting cellulitis are heterogeneou...