diff --git a/invesalius/constants.py b/invesalius/constants.py
index 4651b65..a69f822 100644
--- a/invesalius/constants.py
+++ b/invesalius/constants.py
@@ -476,6 +476,7 @@ ID_SWAP_XZ = wx.NewId()
 ID_SWAP_YZ = wx.NewId()
 
 ID_BOOLEAN_MASK = wx.NewId()
+ID_CLEAN_MASK = wx.NewId()
 
 #---------------------------------------------------------
 STATE_DEFAULT = 1000
diff --git a/invesalius/data/mask.py b/invesalius/data/mask.py
index d0245b9..0ddbf1a 100644
--- a/invesalius/data/mask.py
+++ b/invesalius/data/mask.py
@@ -285,6 +285,12 @@ class Mask():
         shape = shape[0] + 1, shape[1] + 1, shape[2] + 1
         self.matrix = numpy.memmap(self.temp_file, mode='w+', dtype='uint8', shape=shape)
 
+    def clean(self):
+        self.matrix[1:, 1:, 1:] = 0
+        self.matrix[0, :, :] = 1
+        self.matrix[:, 0, :] = 1
+        self.matrix[:, :, 0] = 1
+
     def copy(self, copy_name):
         """
         creates and return a copy from the mask instance.
diff --git a/invesalius/data/slice_.py b/invesalius/data/slice_.py
index 9f73e5d..6c5f04a 100644
--- a/invesalius/data/slice_.py
+++ b/invesalius/data/slice_.py
@@ -142,6 +142,7 @@ class Slice(object):
         Publisher.subscribe(self.__set_mask_name, 'Change mask name')
         Publisher.subscribe(self.__show_mask, 'Show mask')
         Publisher.subscribe(self.__hide_current_mask, 'Hide current mask')
+        Publisher.subscribe(self.__clean_current_mask, 'Clean current mask')
 
         Publisher.subscribe(self.__set_current_mask_threshold_limits,
                                         'Update threshold limits')
@@ -211,6 +212,7 @@ class Slice(object):
                     buffer_.discard_vtk_mask()
                     buffer_.discard_mask()
 
+                Publisher.sendMessage('Show mask', (item, 0))
                 Publisher.sendMessage('Reload actual slice')
 
     def OnDuplicateMasks(self, pubsub_evt):
@@ -385,6 +387,14 @@ class Slice(object):
             value = False
             Publisher.sendMessage('Show mask', (index, value))
 
+    def __clean_current_mask(self, pubsub_evt):
+        if self.current_mask:
+            self.current_mask.clean()
+            for buffer_ in self.buffer_slices.values():
+                buffer_.discard_vtk_mask()
+                buffer_.discard_mask()
+            self.current_mask.clear_history()
+
     def create_temp_mask(self):
         temp_file = tempfile.mktemp()
         shape = self.matrix.shape
@@ -1012,6 +1022,7 @@ class Slice(object):
 
         if show:
             self.current_mask = mask
+            Publisher.sendMessage('Show mask', (mask.index, 1))
             Publisher.sendMessage('Change mask selected', mask.index)
             Publisher.sendMessage('Update slice viewer')
 
diff --git a/invesalius/gui/frame.py b/invesalius/gui/frame.py
index 550b327..1e323e6 100644
--- a/invesalius/gui/frame.py
+++ b/invesalius/gui/frame.py
@@ -401,6 +401,8 @@ class Frame(wx.Frame):
 
         elif id == const.ID_BOOLEAN_MASK:
             self.OnMaskBoolean()
+        elif id == const.ID_CLEAN_MASK:
+            self.OnCleanMask()
 
     def OnSize(self, evt):
         """
@@ -503,11 +505,13 @@ class Frame(wx.Frame):
         print "Redo"
         Publisher.sendMessage('Redo edition')
 
-
     def OnMaskBoolean(self):
         print "Mask boolean"
         Publisher.sendMessage('Show boolean dialog')
-      
+
+    def OnCleanMask(self):
+        Publisher.sendMessage('Clean current mask')
+        Publisher.sendMessage('Reload actual slice')
 
 # ------------------------------------------------------------------
 # ------------------------------------------------------------------
@@ -548,6 +552,7 @@ class MenuBar(wx.MenuBar):
 
         sub(self.OnAddMask, "Add mask")
         sub(self.OnRemoveMasks, "Remove masks")
+        sub(self.OnShowMask, "Show mask")
 
         self.num_masks = 0
 
@@ -629,6 +634,10 @@ class MenuBar(wx.MenuBar):
         mask_menu = wx.Menu()
         self.bool_op_menu = mask_menu.Append(const.ID_BOOLEAN_MASK, _(u"Boolean operations"))
         self.bool_op_menu.Enable(False)
+
+        self.clean_mask_menu = mask_menu.Append(const.ID_CLEAN_MASK, _(u"Clean Mask\tCtrl+Shift+A"))
+        self.clean_mask_menu.Enable(False)
+
         file_edit.AppendMenu(-1,  _(u"Mask"), mask_menu)
 
 
@@ -725,19 +734,17 @@ class MenuBar(wx.MenuBar):
 
     def OnAddMask(self, pubsub_evt):
         self.num_masks += 1
-
-        if self.num_masks >= 2:
-            self.bool_op_menu.Enable(True)
-        else:
-            self.bool_op_menu.Enable(False)
+        self.bool_op_menu.Enable(self.num_masks >= 2)
 
     def OnRemoveMasks(self, pubsub_evt):
         self.num_masks -= len(pubsub_evt.data)
+        self.bool_op_menu.Enable(self.num_masks >= 2)
+
+    def OnShowMask(self, pubsub_evt):
+        index, value = pubsub_evt.data
+        self.clean_mask_menu.Enable(value)
+
 
-        if self.num_masks >= 2:
-            self.bool_op_menu.Enable(True)
-        else:
-            self.bool_op_menu.Enable(False)
 # ------------------------------------------------------------------
 # ------------------------------------------------------------------
 # ------------------------------------------------------------------
--
libgit2 0.21.2