[Tertiary yaws--skeletal manifestations at the distal tibia]

Area of Science:

• Infectious Diseases
• Tropical Medicine
• Dermatology

Background:

• Yaws is a chronic bacterial infection caused by Treponema pallidum subspecies pertenue.
• Tertiary yaws represents a late stage of the disease, characterized by destructive bone and joint lesions.
• Neglected tropical diseases disproportionately affect vulnerable populations in tropical and subtropical regions.

Observation:

• A 16-year-old male patient of African origin presented with symptoms indicative of tertiary yaws.
• The primary manifestation was observed at the distal tibia, a rare site for tertiary yaws.
• Clinical examination revealed characteristic signs of chronic yaws infection.

Findings:

• Diagnostic imaging, including X-rays and potentially MRI, demonstrated bone deformities and lesions consistent with tertiary yaws.
• Biochemical analyses were performed to assess the patient's overall health status and rule out other conditions.
• Differential diagnosis considered other bone infections and inflammatory conditions.

Implications:

• This case underscores the importance of recognizing tertiary yaws, even in atypical presentations.
• Accurate and timely diagnosis is crucial for effective management and prevention of long-term sequelae.
• Further research into the epidemiology and treatment of late-stage yaws is warranted to improve patient outcomes.