Periodontal Ehlers-Danlos syndrome Periodontal EDS (pEDS) causes dental problems, particularly inflamed or absent gums and poor tooth development, on top of typical features of cEDS. It is rare but can be inherited from one parent only, as only one faulty gene is needed to develop the condition.
Ribs 1, 2, 11 and 12 can be describes as âatypicalâ â they have features that are not common to all the ribs. Rib 1 is shorter and wider than the other ribs. It only has one facet on its head for articulation with its corresponding vertebrae (there isnât a thoracic vertebrae above it).
1 HER2 positivity is indicated if there are more than six copies of the HER2 gene per cell or if more than 2.2 HER2 genes are found for each copy of chromosome 17. 2  The latter is termed the HER2 chromosome enumeration probe 17 or the CEP17 ratio. HER2 positivity is indicated if there are more than six copies of the HER2 gene per cell or if more than 2.2 HER2 genes are found for each copy of chromosome 17. 2  The latter is termed the HER2 chromosome enumeration probe 17 or the CEP17 ratio.