ABSTRACT
La hiperhidrosis focal primaria (HH) es un trastorno que consiste en sudoración que excede lo requerido para la termorregulación y afecta a 3 de cada 100 personas en la población general. Es considerada una enfermedad con alto impacto en la calidad de vida. La fisiopatología involucra el eje hipotálamo- sistema nervioso autónomo. A lo largo de la historia se han descrito múltiples terapias médicas y quirúrgicas con resultados variables. En la literatura se evidencia un vacío en el conocimiento acerca de la simpatectomía torácica (ST) y su utilidad en el contexto de HH. En miras a mejorar la calidad de vida de estos pacientes, realizamos una revisión cuidadosa de la literatura disponible actualmente, encontrando que la ST es un procedimiento seguro y efectivo, con altas tasas de éxito y satisfacción en estos pacientes.
Primary focal hyperhidrosis (HH) is a disorder consisting of sweating in excess of that required for thermoregulation and affects 3 out of 100 people in the general population. It is considered a disease with a high impact on quality of life. Pathophysiology involves the hypothalamic-autonomic nervous system axis. Throughout history, multiple medical and surgical therapies have been described with variable results. The literature shows a gap in knowledge about thoracic sympathectomy and its usefulness in the context of HH. To improve the quality of life of these patients, we carried out a careful review of the currently available literature, finding that ST is a safe and effective procedure, with high rates of success and satisfaction in these patients.
Subject(s)
HumansABSTRACT
Subungual melanomas are rare neoplasms that tend to debut as longitudinal melanonychia. They are primarily found in patients over 60 years of age and are usually diagnosed late, representing a diagnostic challenge. We present a case report of a 59-year-old female Hispanic patient who initially presented with melanonychia and was eventually diagnosed with subungual melanoma in situ. She was surgically treated and, after three months, remained healthy. Relevant risk factors, clinical and onychoscopic findings, diagnostic criteria, and treatment options are also discussed. Since many benign entities present similarly, high clinical suspicion is critical for diagnosing this entity.
ABSTRACT
Clear cell renal cell carcinoma (ccRCC) comprises most renal cell carcinoma (RCC) cases, with its incidence increasing in recent years. Metastases are most commonly found in the lungs, bones, liver, and brain. However, few patients present with cutaneous metastases, which are usually associated with poor outcomes. We present the case of a 52-year-old man with ccRCC and skin metastasis. Our aim was to highlight the variability in the presentation of cutaneous metastasis of ccRCC. Clinicians should be aware of the various manifestations and possible locations of RCC skin metastases to better identify these lesions and further guide treatment.
ABSTRACT
Resumen Introducción: el onicomatricoma es un tumor fibroepitelial originado en la matriz ungular, es infrecuente y suele presentarse alrededor de la quinta y sexta década de la vida. Métodos: se presenta el caso de un paciente masculino de 57 años, sin antecedentes patológicos, quien consultó por una lesión no dolorosa en la uña del tercer dedo de la mano derecha. Al examen físico presentaba cromoniquia amarilla longitudinal, estrías blanquecinas y hemorragias en astilla. Se realizó onicectomía y matricectomía proximal y se envió el especimen resecado a estudio histopatológico. Resultados: el examen histopatológico reportó una lesión fibroepitelial, con invaginaciones del epitelio y ausencia de la capa granulosa. En el estroma se observaban células ondulantes y fusocelulares acompañadas de mastocitos. Se realizaron tinciones de inmunohistoquímica, confirmando el diagnóstico de onicomatricoma, variante micropapilifera. Conclusiones: debido a los múltiples diagnósticos diferenciales de esta condición, es importante para el dermatólogo familiarizarse con la clínica, hallazgos dermatoscópicos y manejo de esta entidad.
Abstract Introduction: onychomatricoma is a fibroepithelial tumor originating in the nail matrix, it is infrequent and usually presents around the fifth and sixth decades of life. Methods: we present the case of a 57-year-old male patient, without relevant past medical history, who complained of a non-painful lesion in the nail of the third finger of the right hand. Physical exam revealed longitudinal yellow chromonychia, whitish striae, and splinter hemorrhages. Onychectomy and proximal matricectomy were performed and the resected specimen was sent for histopathological study. Results: the histopathological study reported a fibroepithelial lesion, with invaginations of the epithelium and absence of the granular layer. Undulating and spindle cell cells accompanied by mast cells were observed in the stroma. Immunohistochemical staining was performed, confirming the diagnosis of onychomatricoma, micropapiliferum variant. Conclusions: due to the multiple differential diagnoses of this condition, it´s important for the dermatologist to become familiar with the clinic, dermoscopic findings and management of this entity.
