Teaching NeuroImage: Mees Lines as a Clinical Clue to Arsenic Poisoning

Q: What does this research mean for the field?

Mees lines can serve as a clinical indicator of arsenic poisoning. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Eurípedes Gomes de Carvalho Neto; Mateus Damiani Monteiro; Carlos Roberto de Mello Rieder

doi:10.1212/wnl.0000000000218552

September 3, 2026NeurologyOpen Access

Teaching NeuroImage: Mees Lines as a Clinical Clue to Arsenic Poisoning

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Key Points

Identify Mees lines on fingernails as a distinctive physical examination marker for evaluating suspected arsenic toxicity.
Documented characteristic dermatologic and neurological signs in a clinical case presentation of heavy metal toxicity.
Correlated the presence of transverse leukonychia striata across multiple nails with toxicological evidence of arsenic exposure.
Observed parallel white transverse bands (Mees lines) resulting from disrupted nail matrix keratinization during arsenic poisoning.
Demonstrated that nail abnormalities can distinguish heavy metal neurotoxicity from other etiologies of acute or subacute peripheral neuropathy.

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Implication

Clinical report reveals Mees lines in systemic arsenic toxicity, highlighting nail examination as a critical diagnostic clue for unexplained peripheral neuropathy.

Abstract

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Cite This Study

Neto et al. (2026) studied this question.

synapsesocial.com/papers/6a9d1e1f28139818eab20c9f https://doi.org/10.1212/wnl.0000000000218552

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Teaching NeuroImage: Mees Lines as a Clinical Clue to Arsenic Poisoning

Key Points

No abstract yet

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Implication

Abstract

Discussion

Cite This Study

Teaching NeuroImage: Mees Lines as a Clinical Clue to Arsenic Poisoning

Key Points

No abstract yet

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

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