Monkeypox outbreak in Spain: clinical and epidemiological findings in a prospective cross-sectional study of 185 cases.

BACKGROUND: Since May 2022, a new outbreak of monkeypox has been reported in several countries, including Spain. The clinical and epidemiological characteristics of the cases in this outbreak may differ from those in earlier reports. OBJECTIVES: To document the clinical and epidemiological characteristics of cases of monkeypox in the current outbreak. METHODS: We conducted a prospective cross-sectional study in multiple medical facilities in Spain to describe the cases of monkeypox in the 2022 outbreak. RESULTS: In total, 185 patients were included. Most cases started with primarily localized homogeneous papules, not pustules, in the probable area of inoculation, which could be cutaneous or mucous, including single lesions. Generalized small pustules appeared later in some of them. Heterogeneous lesions occurred during this generalized phase. All patients had systemic symptoms. Less common lesions included mucosal ulcers (including pharyngeal ulcers and proctitis) and monkeypox whitlows. Four patients were hospitalized, none died. Smallpox vaccination and well-controlled HIV disease were not associated with markers of severity. Contact during sex is the most likely mechanism of transmission. In this outbreak, cases have been described in men who have sex with men and are strongly associated with high-risk sexual behaviours. Seventy-six per cent of the patients had other sexually transmitted diseases upon screening. CONCLUSIONS: The clinical findings in this outbreak differ from previous findings and highly suggest contact transmission and initiation at the entry site. The characterization of the epidemiology of this outbreak has implications for control. What is already known about this topic? Monkeypox eruption is described as consisting of pustules. The roles of HIV and previous smallpox vaccination in the prognosis are unknown. The transmission route was initially described as respiratory droplets and was later suggested to be via sexual contact. What does this study add? Initial lesions at the probable inoculation area were homogeneous and papular (pseudopustules). Generalized small pustules appeared later in some of them. Heterogeneous lesions occurred during this generalized phase. All patients had systemic symptoms. Less common signs included mucosal ulcers (including pharyngeal ulcers and proctitis) and monkeypox whitlows. Well-controlled HIV and previous smallpox vaccination were not associated with severity. No patient died. The data support the hypothesis of transmission via contact during sex. Although this might change, the outbreak is currently limited mostly to men who have sex with men, with high-risk factors for sexually transmitted diseases.

Merkel cell carcinoma: Clinical and anatomopathological features, management and survival in our centre.

OBJECTIVE: To summarize the features of the Merkel cell carcinoma (MCC) and to sistematyze its diagnosis and therapeutic management. METHOD: We performed a literature review in PubMed, obtaining a total of 3,308 articles, selecting 10 for its complete reading and 22 for the reading of the summary according to the content. RESULTS: In none of our patients, the MCC was the first suspected diagnosis. The treatment consisted in surgical excision with tumor free margins and lymphadenectomy. We offered ad-juvant RT which they rejected. They remain disease-free at the present time. CONCLUSIONS: MCC is a rare and aggressive disease which presents as a fast-growing solitary asymptomatic erythematous nodule in those areas of skin which are exposed to sunlight in elderly patients. The main risk factors include radiative ultraviolet, immunosuppression and merkel cell polyomavirus. Surgery is the main loco-regional treatment. Lymph node metastases in the course of the disease is one of the main prognostic factors. If there are no adenopaties, sentinel lymph node biopsy must be done; if there are adenopaties or a positive biopsy, lymphadenectomy is indicated. Radiotherapy is indicated in all stages of disease since it has shown to improve loco-regional control. In distant metastatic disease, immunotherapy and participating in clinical trials are the first choice.

OBJETIVO: Resumir las características del carcinoma de células de Merkel (CCM) y sistematizar su manejo diagnóstico-terapéutico. MÉTODO: Realizamos una búsqueda bibliográfica en PubMed y aparecieron 3,308 artículos, de los que seleccionamos 10 para lectura completa y 22 para lectura del resumen acorde con su contenido. RESULTADOS: En ninguno de nuestros pacientes el CCM fue la primera sospecha diagnóstica. El tratamiento consistió en la extirpación quirúrgica con márgenes libres y linfadenectomía. Se les ofreció radioterapia adyuvante, que rechazaron. Se encuentran libres de enfermedad tras 1 año del tratamiento. CONCLUSIONES: El CCM es una condición rara y agresiva que se presenta como un nódulo eritematoso de rápido crecimiento y asintomático en zonas fotoexpuestas de pacientes añosos. Los principales factores de riesgo son la exposición ultravioleta, la inmunosupresión y el poliomavirus asociado al carcinoma de Merkel (MCPyV, Merkel cell polyomavirus). La cirugía es el pilar fundamental del tratamiento locorregional. La afectación ganglionar en el transcurso de la enfermedad es uno de los principales factores pronósticos. Si no existen adenopatías reconocibles, debe realizarse biopsia selectiva de ganglio centinela; si existen adenopatías o la biopsia es positiva, está indicada la linfadenectomía. La radioterapia adyuvante está indicada en todos los estadios y ha demostrado un mejor control locorregional. En la enfermedad a distancia es de primera elección la inmunoterapia y participar en ensayos clínicos.