[Performance of the KAtex test in screening and diagnosis for visceral leishmaniasis in a reference hospital]. / Comportamiento de la prueba KAtex en el cribado y diagnóstico de la leishmaniasis visceral en un hospital de referencia.

OBJECTIVE: Performing of diagnostic test simple using samples not invasive in the diagnosis of visceral leishmaniasis (VL) may be very beneficial, being necessary comparing to traditional methods. The objective of this study was to know the reliability of test KAtex in the urine of patients with suspicion of VL. METHODS: Retrospectively were reviewed the medical histories of patients with suspected of VL to which are performed the test between 2009 and 2015. For its analysis were selected the patients to which is them had made study of the parasite in bone marrow. RESULTS: A total of 110 patients were studied, and bone marrow biopsy for research of Leishmania was performed in 44 (40%). In these patients the sensitivity of the test was 50%, the specificity of 96.7%, positive predictive value of 87.5% and negative predictive value of 80.5%. CONCLUSIONS: KAtex antigenuria sensitivity is too low recommending it as a unique method in the detection of VL in our medium.

[Malignant non-Hodgkin's lymphoma in cervicofacial pathology]. / Linfomas malignos no hodgkinianos en patología cervicofacial.

114 non-Hodgkin's lymphomas (NHL) have been studied in HCU of Salamanca during a ten years period (1977-1987). Fifty seven of them had a head and neck location. According to this we divided this group of patients in primary or secondary sitting in relation to the head and neck affectation. We also distinguish which are the most frequently involved areas; lymph nodes and extranodal presentations, divided into Waldeyer's and no-Waldeyer's one. We present the clinical features and first affects symptoms. Histological materials was reviewed by a pathologist and a diagnosis aspect according to the working formulation of the National Cancer Institute for the NHL.

[CRST syndrome and mixed cryoglobulinemia (author's transl)]. / Síndrome CRST y crioglobulinemia mixta.

A case of CRST syndrome associated with a type III mixed cryoglobulinemia according to Seligman's classification is presented. The authors stress the concrete individualization of this syndrome, as well as the importance of the Raynaud's phenomenon as the first and early manifestation in the clinical picture. They state, on the other hand, that the abundance and distribution of the telangiectasias is similar to the hereditary Rendu-Osler telangiectasia. Finally, a possible common physiopathologic basis for the syndrome and the associated cryoglobulinemia in this patient is suggested.