diff --git a/src/ontology/uberon-edit.obo b/src/ontology/uberon-edit.obo
index 1484f4c4a..f1ef9ce66 100644
--- a/src/ontology/uberon-edit.obo
+++ b/src/ontology/uberon-edit.obo
@@ -224685,6 +224685,20 @@ relationship: dc-contributor https://orcid.org/0000-0002-4341-3265
 relationship: dc-contributor https://orcid.org/0000-0003-2804-127X ! Sanjay Jain
 property_value: dcterms-date "2024-08-28T16:10:50Z" xsd:dateTime
 
+[Term]
+id: UBERON:8600117
+name: antimesosalpinx
+def: "A posterior free border of a mesosalpinx." [https://vanat.ahc.umn.edu/ungDissect/Lab17/Lab17.html]
+synonym: "anti-mesosalpinx" EXACT [doi:10.1101/2020.08.23.263772]
+synonym: "posterior free border of mesosalpinx" EXACT [https://vanat.ahc.umn.edu/ungDissect/Lab17/Lab17.html]
+synonym: "posterior free edge of mesosalpinx" EXACT [https://orcid.org/0000-0001-7655-4833]
+is_a: UBERON:0000042 ! serous membrane
+is_a: UBERON:0002095 ! mesentery
+relationship: dc-contributor https://orcid.org/0000-0001-6677-8489 ! Aleix Puig-Barbé
+relationship: dc-contributor https://orcid.org/0000-0001-7655-4833 ! Ellen Quardokus
+relationship: part_of UBERON:0012331 ! mesosalpinx
+property_value: dcterms-date "2024-11-14T09:59:53Z" xsd:dateTime
+
 [Term]
 id: UBERON:8700000
 name: aorta-gonad-mesonephros