Retronychia : four new cases.

Area of Science:

• Dermatology
• Podiatry
• Nail Biology

Background:

• Retronychia (RN) is a nail disorder characterized by the nail plate embedding into the proximal nail fold.
• This condition is often overlooked and misdiagnosed, leading to delayed treatment.
• RN presents with chronic paronychia, nail discharge, and disrupted nail growth.

Observation:

• Four clinical cases of Retronychia are presented.
• The study highlights the diagnostic challenges and common misinterpretations of RN.
• Clinical features include persistent inflammation, exudate, and abnormal nail plate formation.

Findings:

• Retronychia diagnosis can be significantly delayed.
• Empirical antibiotic treatments are ineffective for RN.
• Nail plate avulsion serves as both a diagnostic and curative method for RN.

Implications:

• Accurate diagnosis of Retronychia avoids unnecessary treatments.
• Surgical management through nail plate avulsion leads to normal nail regrowth.
• Understanding RN prevents misdiagnosis and ensures appropriate patient care.