<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/07ab045a-9dc4-4416-80fd-329ed32d06ce/95205363-946D-4377-BF14-02F088428145/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://en.wikipedia.org/w/index.php?title=Tinnitus&oldid=174537316" href="http://en.wikipedia.org/w/index.php?title=Tinnitus&oldid=174537316" style="font-size: 11px;">en.wikipedia.org</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://en.wikipedia.org/w/index.php?title=Tinnitus&oldid=174537316"><H2><SPAN class="editsection">[<A title="Edit section: Objective tinnitus" href="http://en.wikipedia.org/w/index.php?title=Tinnitus&action=edit&section=1">edit</A>]</SPAN> <SPAN class="mw-headline">Objective tinnitus</SPAN></H2></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://en.wikipedia.org/w/index.php?title=Tinnitus&oldid=174537316"><P>In a minority of cases, a clinician can perceive an actual sound (<I>e.g.</I>, a <A title="Bruit" href="http://en.wikipedia.org/wiki/Bruit">bruit</A>) emanating from the patient's ears. This is called <B>objective tinnitus</B>. Objective tinnitus can arise from muscle spasms that cause clicks or crackling around the middle ear.<SUP class="reference" id="_ref-entnet-hearing_0"><A title="" href="#_note-entnet-hearing">[8]</A></SUP> Some people experience a sound that beats in time with the pulse (<B><A title="Pulsatile tinnitus" class="new" href="http://en.wikipedia.org/w/index.php?title=Pulsatile_tinnitus&action=edit">pulsatile tinnitus</A></B><SUP class="reference" id="_ref-rnid-290661_0"><A title="" href="#_note-rnid-290661">[9]</A></SUP>). Pulsatile tinnitus is usually objective in nature, resulting from altered blood flow or increased blood turbulence near the ear (such as from <A title="Atherosclerosis" href="http://en.wikipedia.org/wiki/Atherosclerosis">atherosclerosis</A> or venous hum<SUP class="reference" id="_ref-nih-6865626_0"><A title="" href="#_note-nih-6865626">[10]</A></SUP>), but it can also arise as a subjective phenomenon from an increased awareness of blood flow in the ear.<SUP class="reference" id="_ref-rnid-290661_1"><A title="" href="#_note-rnid-290661">[9]</A></SUP> Rarely, pulsatile tinnitus may be a symptom of potentially life-threatening conditions such as <A title="Carotid artery" href="http://en.wikipedia.org/wiki/Carotid_artery">carotid artery</A> <A title="Aneurysm" href="http://en.wikipedia.org/wiki/Aneurysm">aneurysm</A><SUP class="reference" id="_ref-nih-15956490_0"><A title="" href="#_note-nih-15956490">[11]</A></SUP> or <A title="Carotid artery dissection" href="http://en.wikipedia.org/wiki/Carotid_artery_dissection">carotid artery dissection</A>.<SUP class="reference" id="_ref-nih-15096317_0"><A title="" href="#_note-nih-15096317">[12]</A></SUP></P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/95205363-946D-4377-BF14-02F088428145/blog/" title="blog or email this clip"><img src="http://content7.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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