Abstract: A few cases of pigmented squamous cell carcinoma affecting the skin and the ocular and oral mucosa of the elderly have been described in the literature. The disease manifests itself as papular and nodular erythematous or pigmented lesions. The main clinical differential diagnoses are pigmented ...
El Pilomatrixoma es un tumor anexial benigno. Presenta una variante histopatológica infrecuente denominada pilomatrixoma proliferante reportada en 1997 por Kaddu et al. Corresponde a una lesión compuesta predominantemente por una proliferación lobular de células basaloides, con atipia nuclear variabl...
Pilomatrixoma/patología,
Neoplasias Cutáneas/patología,
Enfermedades del Cabello/patología,
Neoplasias de Células Escamosas/patología,
Dermoscopía,
Pilomatrixoma/diagnóstico,
Neoplasias Cutáneas/diagnóstico,
Enfermedades del Cabello/diagnóstico,
Carcinoma de Células Escamosas/diagnóstico,
Diagnóstico Diferencial,
Nariz
El patrón en arcoiris ha sido un tema controvertido, dado que en un principio se planteó como un patrón dermatoscópico específico asociado al diagnóstico de Sarcoma de Kaposi. Sin embargo, esta asociación ha sido cuestionada por diversos reportes que han evidenciado la presencia de este patrón de...
Cutaneous human papillomaviruses (HPVs) include β- and γ-HPVs, in addition to a small fraction of α-HPVs. β-HPVs were first isolated from patients with the rare genetic disorder Epidermodysplasia verruciformis, and they are associated with the development of nonmelanoma skin cancer at...
Epidermodisplasia Verruciforme,
Huésped Inmunocomprometido,
Papillomaviridae/aislamiento & purificación,
Infecciones por Papillomavirus/complicaciones,
Infecciones por Papillomavirus/epidemiología,
Prevalencia,
Piel/virología,
Neoplasias Cutáneas/epidemiología,
Neoplasias Cutáneas/patología,
Neoplasias Cutáneas/virología,
Receptores de Trasplantes
RESUMEN El síndrome Gorlin (SG) es una condición genética, con patrón de herencia autosómico dominante, con penetrancia completa y expresividad variable, debida a mutaciones germinales en los genes PTCH1 o SUFU, los cuales son componentes de la vía molecular Sonic hedgehog. El SG se caracteriza por...
RESUMO Objetivo: Descrever a evolução clínica do nevo de Spitz, desde sua característica inicial plana até o aparecimento de uma superfície irregular, nodular e avermelhada e a conduta perante essas alterações. Descrição do caso: Criança do sexo feminino, fototipo II, com um pequeno nevo c...
Abstract: We report a case of granulomatous slack skin, a rare and indolent subtype of mycosis fungoides. It affects mainly men between the third and fourth decades. It is characterized by hardened and erithematous plaques that mainly affect flexural areas and become pedunculated after some years. Histol...
Antineoplásicos Hormonales/uso terapéutico,
Biopsia,
Inmunohistoquímica,
Linfoma Cutáneo de Células T/diagnóstico,
Linfoma Cutáneo de Células T/tratamiento farmacológico,
Linfoma Cutáneo de Células T/patología,
Fotograbar,
Prednisona/uso terapéutico,
Neoplasias Cutáneas/diagnóstico,
Neoplasias Cutáneas/tratamiento farmacológico,
Neoplasias Cutáneas/patología
Abstract: Bowen's disease is an in situ squamous cell carcinoma of the skin with only 2% of pigmented cases reported. It is clinically characterized by papules and plaques of blackened surface that may be caused either by sun damage - usually in photoexposed areas in elderly individuals - or by human pap...
Abstract: Cutaneous lymphomas are classified according to their cellular origin into T-cell lymphoma and B-cell lymphoma. The annual incidence rate is 0.3 per 100,000 population. We report a case of a 56-year-old male patient who presented with a two-month history of nodules of varying sizes, some ulcera...
