Skin tumors may imitate infectious processes

Area of Science:

• Dermatology
• Oral and Maxillofacial Surgery

Background:

• Dermatofibromas are common benign skin tumors.
• Their etiology is often idiopathic, but trauma is a suspected factor.

Observation:

• A right-handed dentist presented with a recurrent nodule on the middle finger.
• The initial lesion was benign, but the recurrence showed increased collagen deposition and vascularity.
• The final diagnosis was dermatofibroma.

Findings:

• The recurrent lesion's development, without a specific traumatic event, suggests a localized tissue reaction to micro-wounds from routine dental procedures.
• Increased collagen deposition and vascularity indicate a dynamic healing or reactive process.

Implications:

• This case underscores the potential for occupational hazards in dentistry, even from seemingly minor injuries.
• Emphasizes the need for meticulous handling of sharp instruments to minimize risks of skin lesions.
• Highlights the importance of evaluating unexplained skin nodules, considering potential serious underlying conditions.