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[Atypical eruptive collagenoma: two cases].
C Dannepond1, L Martin, R Kerdraon
1Service de dermatologie, centre hospitalier régional d'Orléans, 1, rue Porte-Madeleine, 45032 Orléans cedex 1, France. carole.dannepond@gmail.com
Annales De Dermatologie Et De Venereologie
|March 10, 2012
Summary
This study presents two unusual cases of eruptive collagenoma in older adults, highlighting atypical lesion locations. Histological examination confirmed collagenoma, aiding diagnosis and differentiation from similar skin conditions.
Area of Science:
- Dermatology
- Histopathology
- Cutaneous Neoplasms
Background:
- Eruptive collagenoma is a rare skin condition typically affecting young adults.
- Lesions are usually asymptomatic, flesh-colored papules on the trunk and upper limbs.
- This report details two atypical cases due to patient age and lesion location.
Observation:
- Case 1: A 69-year-old male with papules on wrists, elbows, and groin.
- Case 2: A 69-year-old female with papules on the trunk and limbs, onset after age 40.
- Both patients had normal systemic and ocular examinations.
Findings:
- Histology revealed a nodular zone in the reticular dermis with disorganized collagen and excess elastic fibers.
- Findings were consistent with collagenoma, lacking elastorrhexis.
- Histological analysis is crucial for diagnosing collagenoma.
Implications:
- These cases expand the known clinical presentation of eruptive collagenoma.
- Understanding atypical presentations is vital for accurate diagnosis.
- Differential diagnoses include elastoma and pseudoxanthoma elasticum.
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