Eccrine hidrocystoma in a child: an atypical presentation

Area of Science:

• Dermatology
• Pediatric Pathology

Background:

• Eccrine hidrocystomas are benign cystic lesions.
• Typically affect adult females, presenting as tense vesicles on the face, especially periorbital areas.
• Histology shows unilocular cysts in the dermis near eccrine ducts.

Observation:

• An 8-year-old boy presented with multiple small, skin-colored to bluish papules on his nose.
• Histopathological examination revealed dilated cystic structures in the mid-dermis.
• These cystic structures were lined by flattened or cuboidal epithelial cells.

Findings:

• The case presents an atypical, pediatric instance of eccrine hidrocystoma.
• The lesions were localized to the nose, an unusual site for this condition in children.
• Histopathology confirmed the diagnosis despite the atypical presentation.

Implications:

• This report expands the known clinical spectrum of eccrine hidrocystoma.
• It emphasizes the importance of considering this diagnosis in pediatric patients with similar facial papules.
• Further research may elucidate potential triggers or genetic factors in pediatric eccrine hidrocystoma.