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1.
R Soc Open Sci ; 10(8): 230638, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37621663

RESUMEN

Although polychaetes from the Bermuda Archipelago have been studied since the beginning of the twentieth century, syllids have been particularly neglected in this area, which is surprising considering this family is usually a dominant group in marine benthic ecosystems. To fill this knowledge gap, we have carried out an extensive analysis of Bermudan Syllidae, combining morphological and molecular data including four nuclear and mitochondrial markers (cytochrome c oxidase subunit I, 18S rRNA, 16S rRNA and 28S rRNA). We have identified and established the phylogenetic position of five new species, Haplosyllis anitae n. sp., Haplosyllis guillei n. sp., Haplosyllis larsi n. sp., Haplosyllis vassiae n. sp. and Syllis laiae n. sp., together with Haplosyllis cf. cephalata. Overall, our results extend the knowledge on the diversity of Syllidae in Bermuda, increasing the number of species present in the area to 25. Our results also recover Opisthosyllis and Syllis as non-monophyletic genera, for which traditional diagnostic morphological features do not accurately reflect their evolutionary histories, and thus we propose that these groups should be reorganized based on molecular characters.

10.
Cases J ; 2(1): 71, 2009 Jan 21.
Artículo en Inglés | MEDLINE | ID: mdl-19159440

RESUMEN

BACKGROUND: Cutaneous metastases can have variable clinical appearances and can mimic benign skin lesions. They are usually seen in patients with advanced disease, but they can be the presenting lesion. CASE PRESENTATION: A 48-year-old woman presented with a 3-month history of progressive appearance of multiple asymptomatic nodular lesions on the chest. The recognition of cutaneous metastases often dramatically alters therapeutic plans, especially when metastases signify persistence of cancer originally thought to be cured. The most common tumor to metastasize to the skin is breast cancer. CONCLUSION: Every practitioner should be highly suspicious of acute-onset, persistent, firm papulonodules, especially when they develop on the chest.

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