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We present a case of mixed infection by two filariae (Loa loa and Mansonella perstans). It seems that the infection was suspected due to a pronounced eosinophilia in a routine analysis. Sheathed and unsheathed microfilariae were observed in the spread of peripheral blood, which enabled a diagnosis to be established of mixed infection by filariae. The definitive diagnosis of the species was carried out at the National Centre of Microbiolgy of Majadahonda. A treatment was initiated with dietilcarbamazina and mebendazole which resulted in the patient's being cured and in the elimination of the microfilariae in the patient's blood. Filariasis is still endemic in many countries. Due to the increase of travellers to such zones and the migratory movements from such areas it is not unusual for us to come across such a diagnosis. The implantation of massive treatments against filariae in endemic zones by the World Health Organisation is reducing their transmission and is managing to eliminate the disease in some areas.

Introduction Acrometastases are extremely rare in the hand, with a prevalence of around 0.1% according to the literature. They are normally associated with advanced tumor stages, especially in lung cancer. The present article shows the experience of our center in the management and treatment of these pathologies. Materials and Methods We report a series of 9 cases treated between 1992 and 2020 in the hand and wrist. Data regarding the primary tumor, the target organ, and survival are analyzed. A review of the cases of acrometastasis reported in the literature is also carried out, emphasizing in how many of then the acral lesion was the first sign of an unknown tumor. Results Acrometastases predominantly affect male patients aged around 60 years, and the primary tumor that is the cause in most cases is lung cancer, with a very low survival rate after the diagnosis (of approximately 8 months). Discussion and Conclusions In cases of acral lesion of non-traumatic origin, acrometastases should be considered, especially in patients who have a known primary tumor. In the present series, there were three cases in which the acrometastases were the first sign of a tumor in the patient, and in one of them it was initially treated as whitlow. In the literature, in approximately 50% of the cases, acrometastases are the first sign of the presence of a tumor.Once diagnosed, multidisciplinary medicosurgical treatment is essential to improve the patient's function and pain as much as possible.

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