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Familial occurrence of pseudoxanthoma-elasticum-like papillary dermal elastolysis
1Cattedra di Anatomia ed Istologia Patologica, Università degli Studi di Roma Tor Vergata, Roma, Italy. orlandi@utovrm.it
Summary
This study details the first reported familial cases of pseudoxanthoma elasticum-like papillary dermal elastolysis (PDE) in two sisters. Findings suggest a potential genetic predisposition in this rare, age-related skin condition.
Area of Science:
- Dermatology
- Genetics
- Pathology
Background:
- Pseudoxanthoma elasticum-like papillary dermal elastolysis (PDE) is a recently defined age-related cutaneous condition.
- Only six cases of PDE have been previously reported, highlighting its rarity.
Observation:
- Two elderly sisters presented with asymptomatic, soft papules on the neck and axillae.
- The patients reported a history of significant sun avoidance.
Findings:
- Histopathological examination revealed a marked decrease in the papillary dermal elastic network.
- Ultrastructural and immunohistochemical analyses showed activated dermal fibroblasts and an absence of myofibroblasts.
- These are the first documented familial cases of PDE.
Implications:
- The familial occurrence, coupled with sun avoidance, suggests a potential genetic or inherited predisposition in PDE pathogenesis.
- Further research into the genetic factors of PDE is warranted.