- Perianal hematoma
A Perianal hematoma is a type of
hematoma located in, or on the border of theanus ."Australian Doctor" Patient information sheet - Author: Professor John Murtagh] It can be misdiagnosed as a haemorrhoid, but is sometimes referred to as an externalhaemorrhoid . [ [http://www.medbroadcast.com/channel_section_details.asp?text_id=1450&channel_id=1017&relation_id=5225 Perianal hematoma - Medbroadcast ] ]Causes
Perianal hematoma are caused by the rupture of a small
vein that drainsblood from the anus. [ [http://www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_h_05zPzhtm MerckSource - Site Improvements In Progress ] ] This rupture may be caused by heavy lifting,cough ing, or straining. Once the rupture has formed, blood quickly pools within a few hours and, if left untreated, forms aclot .ymptoms
The symptoms of a perianal hematoma can present over a short period of time. Pain, varying from mild to severe, [ [http://books.google.com/books?id=7SZWRe2OBlgC&pg=PA396&lpg=PA396&dq=perianal+hematoma&source=web&ots=MDFzjRcX4Z&sig=FxJrXIAC0vyYBd44sY4HIieo4u0#PPA396,M1a Clinical Anatomy by Regions] - Richard S. Snell (Google Books)] will occur as the skin surrounding the rupture expands due to pressure. This pain will usually last even after the blood has clotted, and may continue for two to four days.
Management
If diagnosed within the first few hours of presentation, the pooling blood may be evacuated using a
syringe . Once the blood has clotted, removal by this method is no longer possible, and the clot can be removed via a simple incision over the lump under local anaesthetic. The incision is not stitched, but will heal very well. Care needs to be taken in regard to bleeding from the wound.If left untreated, the clot will dissolve back into the bloodstream and the hematoma will disappear. A
skin tag may remain where the hematoma was, which may cause annoyance and irritation.ee also
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Haemorrhoid References
External links
* [http://www.medbroadcast.com/channel_section_details.asp?text_id=1450&channel_id=1017&relation_id=5225 Perianal hematoma] - MedBroadcast
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