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Congenital calcinosis cutis of the foot
G K Tharini1, D Prabavathy, S J Daniel
1Department of Dermatology, Madras Medical College, Chennai, India. gtrajang@gmail.com
Insights
Subepidermal calcified nodule is a rare idiopathic skin condition. This case report details a newborn with a congenital nodule, confirmed as subepidermal calcified nodule via histopathology after surgical excision.
Area of Science:
- Dermatology
- Pathology
- Pediatrics
Background:
- Calcinosis cutis involves insoluble calcium salt deposition in the skin.
- Subepidermal calcified nodule (SCN) is an idiopathic form of calcinosis cutis.
- SCN typically affects children, with congenital presentation being rare.
Purpose of the Study:
- To describe a rare case of congenital subepidermal calcified nodule.
- To highlight the diagnostic confirmation through histopathology following surgical excision.
Main Methods:
- Clinical presentation of a solitary, hard nodule on the left foot since birth.
- Surgical excision of the affected nodule.
- Histopathological examination of the excised tissue.
Main Results:
- A healthy 10-month-old boy presented with a congenital nodule.
- Histopathology confirmed the nodule as a subepidermal calcified nodule.
Conclusions:
- Subepidermal calcified nodule can present congenitally, though rarely.
- Surgical excision and histopathology are crucial for diagnosis and management.
Abstract:
Calcinosis cutis is a rare disease characterized by deposition of insoluble calcium salts in the skin. Subepidermal calcified nodule is a form of idiopathic calcinosis cutis that commonly affects children but rarely presents at birth. Herein we describe a healthy 10-month-old boy who had a solitary hard nodule on the left foot since birth. Surgical excision of the nodule was done and histopathology confirmed the diagnosis of subepidermal calcified nodule.
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