II. Pathophysiology
- Results from Nail Growth arrest (interrupted nail bed Mitosis)
- Suggests systemic illness or local Trauma
- Prolonged illness duration results in wider groove
III. Causes
- Severe illness
- Pemphigus
- High fever
- Chemotherapy
- Raynaud Disease
IV. Signs
- Deep transverse (horizontal) grooves in nail plate (Beau's Lines)
- Typically affects entire width of nail plate
V. Differential Diagnosis: Transverse Lines in Nail
- See Also Nail Discoloration
-
Muehrcke's Lines
- Pairs of white lines do not move with Nail Growth
-
Mees' Lines
- Transverse lines parallel to lunula
-
Leukonychia
- Non-uniform lines or spots
- Transverse striate Leukonychia
VI. References
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Related Studies
| Concepts | Finding (T033) |
| SnomedCT | 299666001 |
| English | transverse nail ridges, transverse ridges in nails (symptom), transverse ridges in nails, transverse ridge nail, nail ridges transverse, transverse nail ridge, Transverse nail ridge, Transverse nail ridge (finding) |
| Spanish | ranura transversal de la uña (hallazgo), ranura transversal de la uña |
Ontology: Beau's lines (C0263534)
| Definition (NCI) | Linear transverse/horizontal groove of one or more nail plates that migrate distally from the proximal nail fold with nail growth, usually secondary to illness, trauma or malnutrition.(NICHD) |
| Concepts | Sign or Symptom (T184) |
| ICD10 | L60.4 |
| SnomedCT | 44087005, 201123006 |
| English | Beau's line, Beau's lines (physical finding), Beau lines, beaus's lines, beau's line, beau's lines, Beau's line (disorder), Horizontal Nail Ridging, Beau's Lines, Beau's lines, Transverse furrows, Transverse groove in nails, Transverse nail groove, Beau's lines (disorder), Beau; line, line; Beau |
| German | Beau-Reil-Querfurchen |
| Korean | 보우선 |
| Spanish | líneas de Beau en las uñas, líneas de Beau, surcos transversales de Beau (trastorno), surcos transversales de Beau |
| Dutch | Beau; lijn, lijn; Beau, Lijnen van Beau |
