Aggressive pilomatrixoma in a child: a case report

Area of Science:

• Dermatopathology
• Oncology

Background:

• Calcifying epitheliomas of Malherbe (pilomatrixomas) are benign calcifying tumors originating from the hair matrix.
• These tumors typically present as slow-growing dermal or subcutaneous masses, frequently found in the head and neck region.

Observation:

• Recurrences of pilomatrixomas after surgical removal are considered rare.
• Historical reports document invasive pilomatrixoma in various locations, including the pre-auricular area, right arm, and upper back.
• Invasive pilomatrixomas have been reported in adults, with no prior documented cases in children.

Findings:

• The abstract highlights the rarity of pilomatrixoma recurrence and the documented instances of invasive forms.
• A notable observation is the absence of reported childhood cases of invasive pilomatrixoma.

Implications:

• Understanding the potential for invasiveness, even in benign tumors, is crucial for complete surgical excision and patient management.
• Further research may be warranted to investigate the factors contributing to invasiveness and the apparent lack of pediatric cases.
• This information aids clinicians in diagnosis and treatment planning for pilomatrixoma patients.