Sea Urchin Granuloma of the Hands: A Case Report.

Oman Med J

Histopathology Department, Sultan Qaboos Hospital, Salalah, Oman.

Published: July 2019

Penetrating wounds from sea urchin spines are marine injuries that may cause morbidity in humans. Seasonal fishing for abalone in Dhofar is associated with an increase in the number of these injuries, as divers may strike their extremities, especially the dorsum of hands and fingers, on the rocks where Echinoderms and juvenile abalone are anchored. The immediate effect of injuries includes pain, edema, bleeding, erythema, and rarely systemic complications. There can be a delayed effect in the form of chronic granulomatous skin disease, which is a slow developing reaction to retained spine fragments in the wound that may take several months to develop. We report a case of sea urchin granulomas in a 45-year-old male who injured his hands by the spines of sea urchin while harvesting . Clinical manifestations, histological patterns, and treatment modalities are discussed here, to enhance the knowledge about these injuries and the available therapies.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6642712PMC
http://dx.doi.org/10.5001/omj.2019.68DOI Listing

Publication Analysis

Top Keywords

sea urchin
16
sea
4
urchin granuloma
4
granuloma hands
4
hands case
4
case report
4
report penetrating
4
penetrating wounds
4
wounds sea
4
urchin spines
4

Similar Publications

The mechanisms that regulate minor and trace element biomineralization in the echinoid skeleton can be primarily controlled biologically (, by the organism and its vital effects) or by extrinsic environmental factors. Assessing the relative role of those controls is essential for understanding echinoid biomineralization, taphonomy, diagenesis, and their potential as geochemical archives. In this study, we (1) contrast geochemical signatures of specimens collected across multiple taxa and environmental settings to assess the effects of environmental and physiological factors on skeletal biomineralogy; and (2) analyze the nanomechanical properties of the echinoid skeleton to assess potential linkages between magnesium/calcium (Mg/Ca) ratios and skeletal nanohardness.

View Article and Find Full Text PDF

On Oscillations in the External Electrical Potential of Sea Urchins.

ACS Omega

January 2025

Unconventional Computing Laboratory, University of the West of England, Coldharbour Ln, Stoke Gifford, Bristol BS16 1QY, U.K.

Sea urchins display complex bioelectric activity patterns, even with their decentralized nervous system. Electrophysiological recordings showed distinct spiking patterns. The baseline potential was about 8.

View Article and Find Full Text PDF

The evolutionary origin of the vertebrate brain remains a major subject of debate, as its development from a dorsal tubular neuroepithelium is unique to chordates. To shed light on the evolutionary emergence of the vertebrate brain, we compared anterior neuroectoderm development across deuterostome species, using available single-cell datasets from sea urchin, amphioxus, and zebrafish embryos. We identified a conserved gene co-expression module, comparable to the anterior gene regulatory network (aGRN) controlling apical organ development in ambulacrarians, and spatially mapped it by multiplexed in situ hybridization to the developing retina and hypothalamus of chordates.

View Article and Find Full Text PDF

Echinoderms, a diverse group of marine invertebrates including starfish, sea urchins, and sea cucumbers, have been recognized as prolific sources of structurally diverse natural products. In the past five years, remarkable progress has been made in the isolation, structural elucidation, and pharmacological assessment of these bioactive compounds. These metabolites, including polysaccharides, triterpenoids, steroids, and peptides, demonstrate potent bioactivities such as anticancer, anti-inflammatory, antiviral, and antimicrobial effects, providing valuable insights and scaffolds for drug discovery.

View Article and Find Full Text PDF

How Significant Are Marine Invertebrate Collagens? Exploring Trends in Research and Innovation.

Mar Drugs

December 2024

CESAM-Centre for Environmental and Marine Studies, Department of Environment and Planning, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal.

This review is focused on the research, innovation and technological breakthroughs on marine invertebrate collagens and their applications. The findings reveal that research dates back to the 1970s, and after a period of reduced activity, interest in collagens from several marine invertebrate groups was renewed around 2008, likely driven by the increased commercial interest in these biomolecules of marine origin. Research and development are predominantly reported from China and Japan, highlighting significant research interest in cnidarians (jellyfish), echinoderms (sea cucumbers, sea urchins and starfish), molluscs (squid and cuttlefish) and sponges.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!