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How to create a medical genogram

To create a medical genogram, you must first determine which genetic diseases you wish to include. Options include: heart disease, cancer, diabetes, Alzheimer’s disease, thyroid disease, certain birth defects, alcoholism, depression and schizophrenia. Remember that you can always add more diseases later or change the symbols to reflect your current needs.  

The next step is to create a legend so that genograms can be read and interpreted systematically like an electrocardiogram. Right-click on the document and select New Legend – Common genogram symbols Insert legend icon. This will insert a new legend that you can work with to create your customized legend.  

Double-click on the first individual; the properties window will appear. Give the individual a name such as Heart disease. Next, select the Display tab.

Display option for an individual 

In this tab, select the color and the corner of the fill associated with the selected disease. In this case, heart disease is represented by a red square in the top left corner. You may use any combination of colors within the individual gender sign to make each disease unique. You can also change the color of the symbol or the text to make them represent a health condition. Check the “Transparent text for label” to avoid having a white background on your text in the legend.  

Also, be sure to verify that the "Make label / Exclude from report" box is checked at the top of the Family tab. This will prevent the inclusion of the legend objects in your family report.

Continue to assign a color code to each of your selected diseases by adding in individuals as needed in your legend. Once your legend is completed, be sure to save a copy of your legend for future documents. Here is an example of a medical genogram legend:


Medical genogram symbols examples

The next step is to create a family by invoking the Family Wizards   Family wizard. You can also add in medical information to the genograms you have already created. Once you have entered the family, click on individuals to add in the color codes corresponding to their disease(s). Use the “Carrier/Affected/Affected by hearsay/Possibly affected” features to specify the nature of the disease or condition.  

This is an example of a three-generational medical pedigree:  


Medical genogram symbols examples

In this family, Paul, a smoker, recently died of a heart attack after years of battling with heart disease and diabetes. His wife Karen has been diagnosed with breast cancer. Nathalie is pregnant, and she is worried that she may have a breast tumor. The anxiety she feels has affected her mental health, and she is also dealing with depression. Meanwhile, Andrew is also a smoker, and his 8-year-old son has Down syndrome.  

Once you are familiar with the different color codes you have created, you will be able to read genograms in a matter of seconds, be able to understand the family risks for certain diseases and come up with strategies for screening, diagnosis, and management.  

Drawing Medical Pedigrees

GenoPro can draw medical pedigrees, used mostly by physicians.  To enable medical pedigrees, select Display all Symbols for a Medical Pedigree from the View menu.  The differences between a genogram and a medical pedigree are modest:

  • A deceased individual is displayed by a single diagonal line rather than an X.
  • A child of unknown gender is displayed by a diamond rather than a question mark (?).
  • An adopted child is displayed in square brackets.

 



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