Koilonychia

Koilonychia
Koilonychia
Classification and external resources
ICD-10 L60.3, Q84.6
ICD-9 703.8, 757.5
DiseasesDB 7207
MedlinePlus 003247

Koilonychia (also known as spoon nails[1]:782) is a nail disease that can be a sign of hypochromic anemia, especially iron-deficiency anemia.[2]:656[3] Koilonychia literally means "spoon nails." It refers to abnormally thin nails (usually of the hand) which have lost their convexity, becoming flat or even concave in shape. In a sense, koilonychia is the opposite of nail clubbing.

Koilonychia is associated with Plummer-Vinson syndrome, and iron deficiency anemia.

See also

References

  1. ^ James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. ISBN 0721629210.
  2. ^ Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill. ISBN 0071380760.
  3. ^ Kumar, Robbins and Cotran: Pathologic Basis of Disease, 7th ed., 2005. Saunders.

External links

v · d · eDisorders of skin appendages (L60–L75, 703–706)
Nail
color: Beau's lines · Yellow nail syndrome · Leukonychia · Azure Lunula
shape: Koilonychia · Nail clubbing
behavior: Onychotillomania · Onychophagia
other: Ingrown nail · Anonychia
ungrouped: Paronychia (Acute paronychia, Chronic paronychia ) · Chevron nail · Congenital onychodysplasia of the index fingers · Green nails · Half and half nails · Hangnail · Hapalonychia · Hook nail · Lichen planus of the nails · Longitudinal erythronychia · Malalignment of the nail plate · Median nail dystrophy · Mees' lines · Melanonychia · Muehrcke's lines · Nail–patella syndrome · Onychoatrophy · Onychocryptosis · Onycholysis · Onychomadesis · Onychomatricoma · Onychomycosis · Onychophosis · Onychoptosis defluvium · Onychorrhexis · Onychoschizia · Platonychia · Pincer nails · Plummer's nail · Psoriatic nails · Pterygium inversum unguis · Pterygium unguis · Purpura of the nail bed · Racquet nail · Red lunulae · Shell nail syndrome · Splinter hemorrhage · Spotted lunulae · Staining of the nail plate · Stippled nails · Subungual hematoma · Terry's nails · Twenty-nail dystrophy
Hair
cicatricial alopecia: Pseudopelade of Brocq · Central centrifugal cicatricial alopecia · Pressure alopecia · Traumatic alopecia · Tumor alopecia · Hot comb alopecia · Perifolliculitis capitis abscedens et suffodiens · Graham-Little syndrome · Folliculitis decalvans
ungrouped: Triangular alopecia · Frontal fibrosing alopecia · Marie Unna hereditary hypotrichosis
Hirsutism · Acquired generalized hypertrichosis · Generalized congenital hypertrichosis · Localized acquired hypertrichosis · Localized congenital hypertrichosis · Patterned acquired hypertrichosis · Prepubertal hypertrichosis · X-linked hypertrichosis
Acne
Acne vulgaris · Acne conglobata · Acne miliaris necrotica · Tropical acne · Infantile acne/Neonatal acne · Excoriated acne · Acne fulminans · Acne medicamentosa (e.g., steroid acne) · Halogen acne (Iododerma, Bromoderma, Chloracne) · Oil acne · Tar acne · Acne cosmetica · Occupational acne · Acne aestivalis · Acne keloidalis nuchae · Acne mechanica · Acne with facial edema · Pomade acne · Acne necrotica · Blackhead · Lupus miliaris disseminatus faciei
Perioral dermatitis (Granulomatous perioral dermatitis) · Phymatous rosacea (Rhinophyma, Blepharophyma, Gnathophyma, Metophyma, Otophyma) · Papulopustular rosacea · Lupoid rosacea · Erythrotelangiectatic rosacea · Glandular rosacea · Gram-negative rosacea · Steroid rosacea · Ocular rosacea · Persistent edema of rosacea · Rosacea conglobata · variants (Periorificial dermatitis, Pyoderma faciale)
Ungrouped
Granulomatous facial dermatitis · Idiopathic facial aseptic granuloma · Periorbital dermatitis · SAPHO syndrome
Follicular cysts
Folliculitis (Folliculitis nares perforans, Tufted folliculitis) · Pseudofolliculitis barbae
Hidradenitis (Hidradenitis suppurativa, Recurrent palmoplantar hidradenitis, Neutrophilic eccrine hidradenitis)
Ungrouped
Acrokeratosis paraneoplastica of Bazex · Acroosteolysis · Bubble hair deformity · Disseminate and recurrent infundibulofolliculitis · Erosive pustular dermatitis of the scalp · Erythromelanosis follicularis faciei et colli · Hair casts · Hair follicle nevus · Intermittent hair–follicle dystrophy · Keratosis pilaris atropicans · Kinking hair · Koenen's tumor · Lichen planopilaris · Lichen spinulosus · Loose anagen syndrome · Menkes kinky hair syndrome · Monilethrix · Parakeratosis pustulosa · Pili (Pili annulati · Pili bifurcati · Pili multigemini · Pili pseudoannulati · Pili torti) · Pityriasis amiantacea · Plica neuropathica · Poliosis · Rubinstein–Taybi syndrome · Setleis syndrome · Traumatic anserine folliculosis · Trichomegaly · Trichomycosis axillaris · Trichorrhexis (Trichorrhexis invaginata · Trichorrhexis nodosa) · Trichostasis spinulosa · Uncombable hair syndrome · Wooly hair · Wooly hair nevus
Sweat glands
Miliaria (Colloid milium • Miliaria crystalline • Miliaria profunda • Miliaria pustulosa • Miliaria rubra • Occlusion miliaria • Postmiliarial hypohidrosis), Granulosis rubra nasi, Ross’ syndrome, Anhidrosis, Hyperhidrosis (Generalized, Gustatory, Palmoplantar)
Body odor, Chromhidrosis, Fox–Fordyce disease

M: SKA

anat/phys/devp

noco/cong/tumr, sysi/epon

proc, drug(D10)
v · d · eCongenital malformations and deformations of skin appendages (Q84, 757.4–757.5)
Nail disease
Anonychia · Leukonychia · Pachyonychia congenita/Onychauxis · Koilonychia
Hair disease

hypotrichosis/abnormalities: keratin disease (Monilethrix) · IBIDS syndrome · Sabinas brittle hair syndrome · Pili annulati · Pili torti · Uncombable hair syndrome · Björnstad syndrome · Giant axonal neuropathy with curly hair

hypertrichosis: Zimmermann–Laband syndrome

M: SKA

anat/phys/devp

noco/cong/tumr, sysi/epon

proc, drug(D10)

)



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Look at other dictionaries:

  • koilonychia — A malformation of the nails in which the outer surface is concave; often associated with iron deficiency or softening by occupational contact with oils. SYN: spoon nail. [G. koilos, hollow, + onyx (onych ), nail] * * * koil·onych·ia .kȯil ō nik… …   Medical dictionary

  • koilonychia — /koy loh nik ee euh/, n. Med. an abnormal condition in which the outer surfaces of the nails are concave; spoon nail. [1900 05; < Gk koîl(os) hollow + onych (s. of ónyx nail; see ONYX) + IA] * * * …   Universalium

  • koilonychia — noun A deformity of the nails characterized by concavity of the outer surface Syn: spoon nail …   Wiktionary

  • koilonychia — n. abnormal condition in which the outer edges of the nails are concave (Medicine) …   English contemporary dictionary

  • koilonychia — koil·onych·ia …   English syllables

  • koilonychia — n. the development of thin (brittle) concave (spoon shaped) nails, a common disorder that can occur with anaemia due to iron deficiency, though the cause is not known. Any underlying disease should be treated …   The new mediacal dictionary

  • koilonychia — /kɔɪloʊˈnɪkiə/ (say koyloh nikeeuh) noun a spoon shaped depression in the nails. {Greek, from koilo (combining form of koilos hollow) + stem of onyx nail + ia ia} …  

  • koilonychia — ˌkȯilōˈnikēə noun ( s) Etymology: New Latin, from Greek koilos hollow + New Latin onychia more at cave : abnormal thinness and concavity of fingernails occurring especially in hypochromic anemias called also spoon nail …   Useful english dictionary

  • Койлонихия (Koilonychia) — образование тонкой (хрупкой) вогнутости на ногтях (напоминающей по внешнему виду углубление в ложке). Койлонихия часто встречается у больных железодефицитной анемией, хотя точная причина се развития неизвестна. Для ее устранения необходимо лечить …   Медицинские термины

  • spoon nail — koilonychia …   Medical dictionary

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