Differential diagnosis of retronychia, onychomycosis and onychomadesis
  • Bianca Maria Wahlen
    Department of Anesthesia, Hamad Medical Corporation, Doha, Qatar
  • Ayman El-Menyar
    Department of Surgery, Clinical Research of Trauma and Vascular Surgery, Hamad Medical Corporation, Doha, Qatar
  • Ayman Elkholy
    Department of Dermatology, Andrology & STDs, Mansoura University, Egypt & Al Malakiya Clinics, Doha, Qatar

Keywords

Retronychia, onychomycosis, onychomadesis, big toe, kinesio tape

Abstract

Background: In rare dermatology cases the differential diagnosis is challenging, e.g. when one nail is growing below another, the provisional diagnosis could be confusing. It may present as chronic paronychia, candidiasis, bacterial infections, rheumatoid arthritis, psoriasis, subungual tumours, or cysts.
Case description: We present a case of iatrogenic rupture of the nails of both big toes following a commonly known recommendation from physiotherapists in the initial stages of hallux valgus or chronic arthritis by using kinesio tape to prevent the big toe from fixation in the valgus position. The initial provisional diagnosis of retronychia was revised, and a final diagnosis of onychomadesis was made. The patient’s complaint was solved after around one year without any specific therapy.
Conclusion: The differential diagnosis for onychomadesis needs a careful and detailed history that may prevent a patient from a frightening diagnosis and painful, long-lasting treatments.

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    Published: 2024-02-12
    Issue: 2024: Vol 11 No 3 (view)


    How to cite:
    1.
    Wahlen BM, El-Menyar A, Elkholy A. Differential diagnosis of retronychia, onychomycosis and onychomadesis. EJCRIM 2024;11 doi:10.12890/2024_004326.