Abstract Collision or contiguous tumors, defined as two or more distinct tumors occurring at one site, are often an unexpected finding and may represent a diagnostic challenge, as clinical and histological presentations do not always coincide. Various combinations of collision tumors have been described ...
Abstract Mycosis fungoides is a cutaneous T-cell lymphoma with various clinical and pathological presentations. Early lesions are nonspecific, which hinders early diagnosis. The folliculotropic subtype is manifested as acneiform lesions, follicular papules or erythematous plaques mainly on the face, neck...
Abstract Osteoma cutis or cutaneous ossification is a rare entity characterized by the formation of bone in the skin. We present an isolated primary osteoma cutis located on the palm, an atypical location....
Abstract: A 39-year-old woman presented with prominent and painful livedo reticularis lesions spreading on her upper and lower extremities. Histopathologically, the small-to medium-sized arteries in the deep dermis and subcutis showed necrotizing vasculitis with cellular infiltration, suggesting cutaneou...
Biopsia,
Livedo Reticularis/complicaciones,
Livedo Reticularis/tratamiento farmacológico,
Livedo Reticularis/patología,
Trastornos de la Pigmentación/etiología,
Trastornos de la Pigmentación/patología,
Poliarteritis Nudosa/complicaciones,
Poliarteritis Nudosa/tratamiento farmacológico,
Poliarteritis Nudosa/patología,
Piel/patología,
Resultado del Tratamiento
Abstract Pemphigus herpetiformis is an autoimmune bullous disease, that combines clinical features of dermatitis herpetiformis and linear IgA bullous dermatosis and immunological characteristics of pemphigus, which makes this disease peculiar and this diagnosis rarely suspected in the first evaluation of...
Abstract: Myeloid sarcoma is an extramedullary tumor of malignant myeloid cells often associated with acute myeloid leukemia, chronic myeloproliferative disorders and myelodysplastic syndromes. The skin is one of the most commonly affected sites. We report a rare case of cutaneous myeloid sarcoma associa...
Abstract: Pyoderma gangrenosum is a rare neutrophilic dermatosis of unknown etiology, of which the most frequent clinical manifestations are ulcers. The diagnosis difficulty is, among other things, to rule out other causes of ulcers, since it is considered a diagnosis of exclusion. Skin ulcerations may a...
Abstract: Ashy dermatosis is a rare condition, of unknown aetiology, in which mucous membranes are typically spared. The authors report the case of a 57-year-old female with a history of asymptomatic gray-bluish macules located on the trunk and oral mucosa. There were no relief changes on examination. Sk...
Antiinflamatorios/uso terapéutico,
Biopsia,
Clofazimina/uso terapéutico,
Eritema/tratamiento farmacológico,
Eritema/patología,
Hiperpigmentación/patología,
Enfermedades de la Boca/tratamiento farmacológico,
Enfermedades de la Boca/patología,
Mucosa Bucal/patología,
Enfermedades Raras/tratamiento farmacológico,
Enfermedades Raras/patología,
Piel/patología
Abstract Pemphigus foliaceus is a chronic autoimmune disease of the skin, clinically characterized by scaly and crusty cutaneous erosions involving the seborrheic areas. The patient can eventually become erythrodermic. There are reports of atypical cases of pemphigus foliaceus with pustules and neutrophi...
Biopsia,
Relación Dosis-Respuesta a Droga,
Glucocorticoides/uso terapéutico,
Pénfigo/tratamiento farmacológico,
Pénfigo/etiología,
Pénfigo/patología,
Prednisona/uso terapéutico,
Psoriasis/complicaciones,
Psoriasis/tratamiento farmacológico,
Psoriasis/patología,
Piel/patología
Abstract Deferasirox is an iron chelator agent used in the treatment of diseases with iron overload, such as thalassemia and myelodysplastic syndrome. Although the majority of adverse reactions of deferasirox involve gastrointestinal symptoms and increase in serum creatinine and transaminases, skin rashe...
Benzoatos/efectos adversos,
Biopsia,
Deferasirox,
Erupciones por Medicamentos/etiología,
Erupciones por Medicamentos/patología,
Quelantes del Hierro/efectos adversos,
Síndromes Mielodisplásicos/tratamiento farmacológico,
Triazoles/efectos adversos,
Urticaria/inducido químicamente,
Urticaria/patología,
Vasculitis/inducido químicamente,
Vasculitis/patología
