poliosis


Also found in: Dictionary, Thesaurus, Wikipedia.

poliosis

 [po″le-o´sis]
circumscribed depigmentation of the hair, particularly of the scalp, occurring in association with or following various pathologic conditions. See also leukotrichia and canities.

po·li·o·sis

(po'lē-ō'sis),
A patchy absence or lessening of melanin in hair of the scalp, brows, or lashes, due to lack of pigment in the epidermis; it occurs in several hereditary syndromes but may be caused by inflammation, irradiation, or infection such as herpes zoster.
Synonym(s): trichopoliosis
[G., fr. polios, gray]

poliosis

/po·li·o·sis/ (pōl-e-o´sis) circumscribed loss of pigment of the hair, especially following some pathological process.

poliosis

[pō′lē·ō′sis]
Etymology: Gk, polios + osis, condition
depigmentation of the hair on the scalp, eyebrows, eyelashes, mustache, beard, or body. The condition may be inherited and generalized or acquired and localized in patches. Acquired localized poliosis often occurs in alopecia areata.
enlarge picture
Poliosis

po·li·o·sis

(pō'lē-ō'sis)
A patchy absence or lessening of melanin in hair of the scalp, brows, or lashes, due to lack of pigment in the epidermis; it occurs in several hereditary syndromes but may be caused by inflammation, irradiation, or infection such as herpes zoster.
[G., fr. polios, gray]

poliosis 

A condition in which there is a lack of pigment in the hair, eyebrows and eyelashes, which appear whitish, grey. The condition normally occurs in patches. It is often associated with vitiligo, alopecia and forms part of the Vogt-Koyanagi-Harada syndrome.

poliosis

localized loss of pigment in the hair.

uveitis-poliosis-vitiligo syndrome
References in periodicals archive ?
This case is a rare case of melanosis oris with Poliosis which has to be followed up regularly to see any changes in the pigmentation if it occurs.
In the present paper, we have reported a case of melanosis oris with poliosis which is not so common in children.
Kwon DY, Park MH, Oh K, Ryu HJ, Park KW: Acute unilateral poliosis concurrent with trigeminal autonomic cephalalgia: a possible aetiological association.
Roberts A, Kaye LC, Memon A, Parslew R, Kaye SB: Unilateral Unilateral poliosis of the eyelashes in children associated with vitiligo.
Kim SK, Do JE, Kang HY, Kim YC: Poliosis developing in a melanocytic nevus.
Yosipovitch G, Feinmesser M, Mutalik S: Poliosis associated with a giant congenital nevus.
Dunn CL, Harrington A, Benson PM, Sau P, James WD: Melanoma of the scalp presenting as poliosis circumscripta.
Young LC, Van Dyke GS, Lipton S, Binder SW: Poliosis overlying a nevus with blue nevus features.
Sandoval-Tress C, Nava-Jimenez G: Poliosis circumscripta associated with neurofibromatosis 1.
Chen CS, Wells J, Craig JE: Topical prostaglandin F(2alpha) analog induced poliosis.
El sindrome de Waardenburg es un desorden hereditario autosomico dominante, que ademas de los hallazgos del sindrome de Woolf, se diferencia de este por los rasgos fenotipicos propios tales como desplazamiento del canto interno de los ojos, heterocromia parcial o total del iris, base nasal ancha, poliosis y maculas acromicas, descrito como sindrome en 1951 por Waardenburg.
During the next 6 months, his vision improved and he developed alopecia, poliosis, and vitiligo of his trunk and upper extremities.