RESUMEN
Annular urticarial lesions in a child must establish a main differential diagnosis with urticaria multiforme, common urticaria, acute hemorrhagic edema of infancy, erythema marginatum, erythema annulare centrifugum, annular erythema in childhood, erythema multiforme, Sweet's syndrome, Schönlein-Henoch purpura, erythematosus lupus, several systemic vasculitis, and serum sickness.
RESUMEN
Hypertrichosis is the excessive hair growth in any area of the skin surface. Acquired localized hypertrichosis may be secondary to multiple causes and there is a secondary form due to several drugs, which is usually reversible with discontinuation of the causative agent. Rivastigmine is a reversible and competitive inhibitor of acetylcholinesterase and butyrylcholinesterase used for symptomatic treatment of Alzheimer dementia and Parkinson's disease. It has an adequate safety profile and cutaneous side effects are unusual. Irritant contact dermatitis, allergic dermatitis, baboon syndrome, and cutaneous rash due to rivastigmine have been reported. We report on a Caucasian 80-year-old male with personal history of Alzheimer's disease. The patient started therapy with oral rivastigmine one month prior to clinical presentation of localized hypertrichosis on both forearms. Norgalanthamine has been shown to promote hair growth activity via the proliferation of dermal papilla. Acetylcholinesterase inhibitors can induce hair growth.
RESUMEN
Squamous cell carcinoma is a malignant skin tumor that is rarely located in the nails. Its presentation, can sometimes be confused with an inflammatory process as onychomycosis or psoriatic onychopathy or other tumors as viral warts. We report the case of a 73-year-old woman with a locally invasive squamous cell carcinoma reaching the bone, simulating a chronic paronychia.
Asunto(s)
Carcinoma de Células Escamosas/diagnóstico por imagen , Carcinoma de Células Escamosas/patología , Enfermedades de la Uña/diagnóstico por imagen , Enfermedades de la Uña/patología , Neoplasias Cutáneas/diagnóstico por imagen , Neoplasias Cutáneas/patología , Anciano , Neoplasias Óseas/patología , Enfermedad Crónica , Diagnóstico Diferencial , Femenino , Falanges de los Dedos de la Mano/patología , Humanos , Invasividad Neoplásica , Paroniquia/diagnóstico , RadiografíaRESUMEN
Primary syphilis with oropharyngeal manifestations should be kept in mind, though. Lips and tongue ulcers are the most frequently reported lesions and tonsillar ulcers are much more rare. We report the case of a 24-year-old woman with a syphilitic ulcer localized in her left tonsil.
Asunto(s)
Chancro/microbiología , Úlceras Bucales/microbiología , Tonsila Palatina/microbiología , Sífilis/diagnóstico , Femenino , Humanos , Adulto JovenAsunto(s)
Adyuvantes Inmunológicos/efectos adversos , Acetato de Glatiramer/efectos adversos , Sindrome de Nicolau/diagnóstico , Adyuvantes Inmunológicos/administración & dosificación , Adulto , Femenino , Acetato de Glatiramer/administración & dosificación , Humanos , Inyecciones Intramusculares , Sindrome de Nicolau/etiologíaAsunto(s)
Dermatosis del Pie/parasitología , Larva Migrans/diagnóstico , Adulto , Antiinflamatorios/uso terapéutico , Dermatosis del Pie/tratamiento farmacológico , Guatemala , Humanos , Larva Migrans/tratamiento farmacológico , Masculino , Metilprednisolona/análogos & derivados , Metilprednisolona/uso terapéutico , Suelo/parasitología , ViajeRESUMEN
Many complications have been reported over tattoos, some of which are tumours, such as dermatofibromas. It is important to establish a differential diagnosis because they can resemble other malignant lesions as dermatofibrosarcoma protuberans. We report the development of a dermatofibroma in a 21-year-old man with a tattoo painted two years ago.