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Aggressive squamous cell carcinoma in Kindler syndrome
Patrick O Emanuel1, Donald Rudikoff, Robert G Phelps
1Department of Dermatopathology, Mount Sinai Medical Center, New York, NY 10029, USA.
Skinmed
|November 7, 2006
Summary
Kindler syndrome is a rare genodermatosis presenting with skin fragility, photosensitivity, and poikiloderma. This case highlights its association with aggressive squamous cell carcinoma and distinctive basement membrane abnormalities.
Area of Science:
- Dermatology
- Genetics
- Oncology
Background:
- Kindler syndrome is a rare genodermatosis characterized by skin fragility, bullae, photosensitivity, and poikiloderma.
- Patients with Kindler syndrome have an increased risk of developing skin cancers, particularly squamous cell carcinoma.
Observation:
- A 57-year-old man with a history of bullae and photosensitivity presented with a fungating squamous cell carcinoma on his hand.
- Clinical examination revealed features of poikiloderma, ectropion, symblepharon, and sclerodermoid changes.
- Histological and electron microscopy findings showed invasive squamous cell carcinoma and characteristic basement membrane abnormalities.
Findings:
- The patient developed aggressive, locally recurrent squamous cell carcinoma requiring amputation and lymph node dissection.
- Metastatic carcinoma was confirmed in axillary lymph nodes.
- Electron microscopy revealed extensive basement membrane reduplication and structural abnormalities, consistent with Kindler syndrome.
Implications:
- This case underscores the critical need for vigilant skin cancer surveillance in patients diagnosed with Kindler syndrome.
- Early detection and management of squamous cell carcinoma are crucial for improving outcomes in this patient population.
- Understanding the pathomechanisms of basement membrane abnormalities in Kindler syndrome may offer insights into cancer development.
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