Melanonychia striata with lentiginous pigmentation: a rare case report

Authors

  • Dhyey Nimish Shah Department of Dermatology, Venerology and Leprosy, GMERS MCH, Sola, Ahmedabad, Gujarat, India
  • Aanal Patel Department of Dermatology, Venerology and Leprosy, GMERS MCH, Sola, Ahmedabad, Gujarat, India
  • Dhimahi A. Solanki Department of Dermatology, Venerology and Leprosy, GMERS MCH, Sola, Ahmedabad, Gujarat, India
  • Gopika A. Patel Department of Dermatology, Venerology and Leprosy, GMERS MCH, Sola, Ahmedabad, Gujarat, India
  • Krina B. Patel Department of Dermatology, Venerology and Leprosy, GMERS MCH, Sola, Ahmedabad, Gujarat, India
  • Deeksha Lalchandani Department of Dermatology, Venerology and Leprosy, GMERS MCH, Sola, Ahmedabad, Gujarat, India

DOI:

https://doi.org/10.18203/issn.2455-4529.IntJResDermatol20250437

Keywords:

Colorectal, Carcinoma, Adenocarcinoma, Colonoscopy, Retrospective

Abstract

Melanonychia is characterized by brown to black discolouration of nail plate of the finger nail or toe nail due to pigment deposition. The aetiology of melanonychia ranges from benign causes that are nevus and lentigines to a malignant one like melanoma, which is however rare. Other aetiology includes post-traumatic, nutritional deficiency, infections, constitutional etc. We report here; a nine-year-old male child who presented to us with concern of pigmented nail bands. A dermoscopic and histopathological evaluation indicated the presence of an intradermal nevus along with concurrent lentiginous pigmentation, which is a rare occurrence.

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References

Hirsch RJ, Weinberg JM. Evaluation of pigmented lesions of the nail unit. Cutis. 2001;67(5):409-11.

Tosti A, Piraccini BM, de Farias DC. Dealing with melanonychia. Semin Cutan Med Surg. 2009;3:28:49. DOI: https://doi.org/10.1016/j.sder.2008.12.004

Singal A, Bisherwal K. Melanonychia: Etiology, Diagnosis, and Treatment. Indian Dermatol Online J. 2020;1:1-11. DOI: https://doi.org/10.4103/idoj.IDOJ_167_19

Yi CAO, Dong HAN. Longitudinal melanonychia: how to distinguish a malignant condition from a benign one. Chinese J Plastic Reconstr Surg. 2021;3(1):56-62. DOI: https://doi.org/10.1016/S2096-6911(21)00080-7

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Published

2025-02-24

How to Cite

Shah, D. N., Patel, A., Solanki, D. A., Patel, G. A., Patel, K. B., & Lalchandani, D. (2025). Melanonychia striata with lentiginous pigmentation: a rare case report. International Journal of Research in Dermatology, 11(2), 164–166. https://doi.org/10.18203/issn.2455-4529.IntJResDermatol20250437

Issue

Section

Case Reports