{"id":6889,"date":"2026-05-04T16:12:14","date_gmt":"2026-05-04T13:12:14","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/hematome-sous-cutane-tete\/"},"modified":"2026-06-01T13:05:38","modified_gmt":"2026-06-01T10:05:38","slug":"hematome-sous-cutane-tete","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/fr\/glossaire\/hematome-sous-cutane-tete\/","title":{"rendered":"H\u00e9matome sous-cutan\u00e9 de la t\u00eate"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Un h\u00e9matome sous-cutan\u00e9 de la t\u00eate (du lat. <em>sub-<\/em> \u2013 sous, <em>cutis<\/em> \u2013 peau et gr. <em>haematoma<\/em> \u2013 tumeur sanguine) est une accumulation locale et limit\u00e9e de sang \u00e9chou\u00e9, situ\u00e9e dans la couche adipeuse strictement entre l&rsquo;\u00e9piderme et la casquette tendineuse. <\/p>\n\n<p class=\"wp-block-paragraph\">En traumatologie, il s&rsquo;agit du type de blessure ferm\u00e9e des tissus mous de la t\u00eate le plus courant et le moins dangereux.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-&#x44D;&#x442;&#x438;&#x43E;&#x43B;&#x43E;&#x433;&#x438;&#x44F;-&#x438;-&#x43F;&#x430;&#x442;&#x43E;&#x444;&#x438;&#x437;&#x438;&#x43E;&#x43B;&#x43E;&#x433;&#x438;&#x44F;\"><strong>\u00c9tiologie et physiopathologie<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">Lors d&rsquo;un coup direct avec un objet contondant ou d&rsquo;une chute, de petites art\u00e8res et veines sous-cutan\u00e9es se rompent. Le sang qui coule se d\u00e9verse dans la couche de graisse sous-cutan\u00e9e (couche \u00ab C \u00bb dans la structure du cuir chevelu).<\/p>\n\n<p class=\"wp-block-paragraph\">La principale caract\u00e9ristique de la pathog\u00e9n\u00e8se r\u00e9side dans la pr\u00e9sence de nombreuses cloisons fibreuses rigides (trab\u00e9cules) qui relient verticalement la peau \u00e0 l&rsquo;apon\u00e9vrose. Ces cloisons agissent comme des alv\u00e9oles, emp\u00eachant le sang de se r\u00e9pandre lat\u00e9ralement. En cons\u00e9quence, le sang s&rsquo;accumule localement, \u00e9tirant les tissus et formant une protub\u00e9rance tendue au-dessus de la surface.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-&#x43A;&#x43B;&#x438;&#x43D;&#x438;&#x447;&#x435;&#x441;&#x43A;&#x43E;&#x435;-&#x437;&#x43D;&#x430;&#x447;&#x435;&#x43D;&#x438;&#x435;\"><strong>Importance clinique<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">Lors de l&rsquo;examen, le m\u00e9decin identifie une enflure dense, ronde et fortement douloureuse qui se d\u00e9place avec la peau. L&rsquo;h\u00e9matome n&rsquo;atteint jamais des volumes critiques capables de provoquer une perte de sang syst\u00e9mique.<\/p>\n\n<p class=\"wp-block-paragraph\">Il existe un pi\u00e8ge diagnostique classique li\u00e9 \u00e0 cet \u00e9tat. Au cours du premier jour, les bords de l&rsquo;h\u00e9matome sont impr\u00e9gn\u00e9s de fibrine et deviennent durs comme de la pierre, tandis que son centre reste rempli d&rsquo;un sang liquide et doux. Lors de la palpation d&rsquo;une telle structure (cr\u00eate dense autour et effondrement au centre), un sp\u00e9cialiste inexp\u00e9riment\u00e9 peut \u00e0 tort suspecter une fracture comprim\u00e9e du cr\u00e2ne. Pour exclure une fracture, une radiographie est toujours n\u00e9cessaire. Le traitement de l&rsquo;h\u00e9matome sous-cutan\u00e9 consiste \u00e0 appliquer localement du froid dans les premi\u00e8res heures pour arr\u00eater le saignement et provoquer une vasoconstriction.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un h\u00e9matome sous-cutan\u00e9 de la t\u00eate (du lat. <em>sub<\/em> \u2013 sous, <em>cutis<\/em> \u2013 peau et gr. <em>haematoma<\/em> \u2013 tumeur sanguine) est une accumulation locale et limit\u00e9e de sang \u00e9chou\u00e9, situ\u00e9e dans la couche adipeuse strictement entre l&rsquo;\u00e9piderme et la casquette tendineuse. <\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-6889","glossary_item","type-glossary_item","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v26.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>H\u00e9matome sous-cutan\u00e9 de la t\u00eate : d\u00e9finition m\u00e9dicale et 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