diff --git a/test/test_mesher.py b/test/test_mesher.py
index 9ea4e26..b5184dc 100644
--- a/test/test_mesher.py
+++ b/test/test_mesher.py
@@ -365,6 +365,27 @@ def test_lansink2024_single_wire_multipolar(self):
             self.assertEqual(self.countEntitiesInPhysicalGroupWithName(
                 name), expectedEntities[idx], name)
 
+    def test_lansink2024_large_one_centered_fdtd_cell(self):
+        caseName = 'lansink2024_large_one_centered_fdtd_cell'
+        Mesher().meshFromStep(self.inputFileFromCaseName(caseName), caseName)
+
+        gmsh.write(caseName + '.msh')
+        gmsh.write(caseName + '.vtk')
+
+        pGs = gmsh.model.getPhysicalGroups()
+        pGNames = [gmsh.model.getPhysicalName(*pG) for pG in pGs]
+        expectedNames = ['Conductor_0',
+                 'Conductor_1',
+                 'OpenBoundary_0',
+                 'Vacuum_0']
+        expectedEntities = [1, 1, 1,
+                    1]
+        self.assertEqual(sorted(pGNames), sorted(expectedNames))
+
+        for idx, name in enumerate(expectedNames):
+            self.assertEqual(self.countEntitiesInPhysicalGroupWithName(
+                name), expectedEntities[idx], name)
+
     def test_unshielded_nesting(self):
         caseName = 'UnshieldedNested'
         Mesher().meshFromStep(self.inputFileFromCaseName(caseName), caseName)
diff --git a/testData/lansink2024_large_one_centered_fdtd_cell/lansink2024_large_one_centered_fdtd_cell.FCStd b/testData/lansink2024_large_one_centered_fdtd_cell/lansink2024_large_one_centered_fdtd_cell.FCStd
new file mode 100644
index 0000000..cb64a0e
Binary files /dev/null and b/testData/lansink2024_large_one_centered_fdtd_cell/lansink2024_large_one_centered_fdtd_cell.FCStd differ
diff --git a/testData/lansink2024_large_one_centered_fdtd_cell/lansink2024_large_one_centered_fdtd_cell.json b/testData/lansink2024_large_one_centered_fdtd_cell/lansink2024_large_one_centered_fdtd_cell.json
new file mode 100644
index 0000000..8ebeca3
--- /dev/null
+++ b/testData/lansink2024_large_one_centered_fdtd_cell/lansink2024_large_one_centered_fdtd_cell.json
@@ -0,0 +1,28 @@
+{
+    "CrossSection": [
+        {
+            "name": "Conductor_0",
+            "material": {
+                "type": "PEC"
+            }
+        },
+        {
+            "name": "Conductor_1",
+            "material": {
+                "type": "PEC"
+            }
+        },
+        {
+            "name": "fdtd_cell",
+            "material": {
+                "type": "Dielectric"
+            }
+        },
+        {
+            "name": "OpenBoundary_0",
+            "material": {
+                "type": "OpenBoundary"
+            }
+        }
+    ]
+}
\ No newline at end of file
diff --git a/testData/lansink2024_large_one_centered_fdtd_cell/lansink2024_large_one_centered_fdtd_cell.step b/testData/lansink2024_large_one_centered_fdtd_cell/lansink2024_large_one_centered_fdtd_cell.step
new file mode 100644
index 0000000..5ca4ce1
--- /dev/null
+++ b/testData/lansink2024_large_one_centered_fdtd_cell/lansink2024_large_one_centered_fdtd_cell.step
@@ -0,0 +1,378 @@
+ISO-10303-21;
+HEADER;
+FILE_DESCRIPTION(('FreeCAD Model'),'2;1');
+FILE_NAME('Open CASCADE Shape Model','2026-01-28T07:11:15',(''),(''),
+  'Open CASCADE STEP processor 7.8','FreeCAD','Unknown');
+FILE_SCHEMA(('AUTOMOTIVE_DESIGN { 1 0 10303 214 1 1 1 1 }'));
+ENDSEC;
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+#275 = FILL_AREA_STYLE_COLOUR('',#276);
+#276 = COLOUR_RGB('',1.,0.666666687201,0.);
+#277 = CURVE_STYLE('',#278,POSITIVE_LENGTH_MEASURE(0.1),#279);
+#278 = DRAUGHTING_PRE_DEFINED_CURVE_FONT('continuous');
+#279 = COLOUR_RGB('',9.803921802644E-02,9.803921802644E-02,
+  9.803921802644E-02);
+#280 = MECHANICAL_DESIGN_GEOMETRIC_PRESENTATION_REPRESENTATION('',(#281)
+  ,#119);
+#281 = STYLED_ITEM('color',(#282),#47);
+#282 = PRESENTATION_STYLE_ASSIGNMENT((#283,#289));
+#283 = SURFACE_STYLE_USAGE(.BOTH.,#284);
+#284 = SURFACE_SIDE_STYLE('',(#285));
+#285 = SURFACE_STYLE_FILL_AREA(#286);
+#286 = FILL_AREA_STYLE('',(#287));
+#287 = FILL_AREA_STYLE_COLOUR('',#288);
+#288 = COLOUR_RGB('',0.800000010877,0.800000010877,0.800000010877);
+#289 = CURVE_STYLE('',#290,POSITIVE_LENGTH_MEASURE(0.1),#279);
+#290 = DRAUGHTING_PRE_DEFINED_CURVE_FONT('continuous');
+#291 = MECHANICAL_DESIGN_GEOMETRIC_PRESENTATION_REPRESENTATION('',(#292)
+  ,#165);
+#292 = STYLED_ITEM('color',(#293),#140);
+#293 = PRESENTATION_STYLE_ASSIGNMENT((#294,#301));
+#294 = SURFACE_STYLE_USAGE(.BOTH.,#295);
+#295 = SURFACE_SIDE_STYLE('',(#296,#299));
+#296 = SURFACE_STYLE_FILL_AREA(#297);
+#297 = FILL_AREA_STYLE('',(#298));
+#298 = FILL_AREA_STYLE_COLOUR('',#288);
+#299 = SURFACE_STYLE_RENDERING_WITH_PROPERTIES(.NORMAL_SHADING.,#288,(
+    #300));
+#300 = SURFACE_STYLE_TRANSPARENT(0.990000009537);
+#301 = CURVE_STYLE('',#302,POSITIVE_LENGTH_MEASURE(0.1),#279);
+#302 = DRAUGHTING_PRE_DEFINED_CURVE_FONT('continuous');
+#303 = MECHANICAL_DESIGN_GEOMETRIC_PRESENTATION_REPRESENTATION('',(#304)
+  ,#257);
+#304 = STYLED_ITEM('color',(#305),#232);
+#305 = PRESENTATION_STYLE_ASSIGNMENT((#306,#311));
+#306 = SURFACE_STYLE_USAGE(.BOTH.,#307);
+#307 = SURFACE_SIDE_STYLE('',(#308));
+#308 = SURFACE_STYLE_FILL_AREA(#309);
+#309 = FILL_AREA_STYLE('',(#310));
+#310 = FILL_AREA_STYLE_COLOUR('',#276);
+#311 = CURVE_STYLE('',#312,POSITIVE_LENGTH_MEASURE(0.1),#279);
+#312 = DRAUGHTING_PRE_DEFINED_CURVE_FONT('continuous');
+ENDSEC;
+END-ISO-10303-21;