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International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01
Extremely painful cherry like lesions under the perianal skin containing clotted blood have been attributed to rupture of a blood vessel with haematoma. However, histology confirmed that these lesions are thrombi lying within the thin-walled vessels of the external anal plexus.
inclusions
perianal thrombosis
Perianal haematoma (nontraumatic)
postcoordination
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