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          "en" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Case 2&#46; Pigmented fungiform papillae of the tongue with a diffuse symmetrical pattern&#44; predominantly affecting the lateral surfaces of the tongue in an indigenous South American woman&#46;</p>"
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    "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">Pigmented fungiform papillae of the tongue was first described over a century ago&#46;<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> Although it seems fairly common in black individuals&#44;<a class="elsevierStyleCrossRefs" href="#bib0010"><span class="elsevierStyleSup">2&#8211;4</span></a> few textbooks of dermatology and oral pathology refer to it&#46;<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a> Some cases have been described in Japanese and Indian populations&#44;<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a> but it is considered rare in oriental races and very rare in white individuals&#46;</p><p id="par0010" class="elsevierStylePara elsevierViewall">We present 2 patients in Spain recently diagnosed with pigmented fungiform papillae of the tongue&#46; The first patient was a 35-year-old black woman&#46; Her medical history included positive human immunodeficiency virus serology detected in 2006 and a cerebral tuberculoma treated with antituberculous drugs in 2007&#59; she is currently on treatment with tenofovir&#44; emtricitabine and nevirapine&#46; The patient attended for pigmentation on the dorsum of the tongue that she had noticed a few months earlier&#46; Examination of the oral mucosa showed that the patient had pigmentation limited to the fungiform papillae on some areas of the dorsum of the tongue&#46; The pigmented papillae were in groups of 15 to 20 papillae&#44; giving the dorsum of the tongue a mottled appearance &#40;<a class="elsevierStyleCrossRef" href="#fig0005">fig&#46; 1</a>&#41;&#46; The second patient was a 43-year-old indigenous South American woman who had undergone cesarean section 22 years earlier&#46; She was not taking any medication on a regular basis&#46; The patient had noticed pigmentation on the dorsum of the tongue a few months earlier&#46; Examination of the oral mucosa showed pigmentation limited to the fungiform papillae of the dorsum of the tongue&#46; The majority of the fungiform papillae were pigmented and were present in a diffuse&#44; symmetrical pattern&#44; predominantly on the tip and lateral aspects of the dorsum of the tongue &#40;<a class="elsevierStyleCrossRef" href="#fig0010">fig&#46; 2</a>&#41;&#46; The fungiform papillae in the central area were not pigmented&#46; She had no accompanying symptoms&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><elsevierMultimedia ident="fig0010"></elsevierMultimedia><p id="par0015" class="elsevierStylePara elsevierViewall">Pigmented fungiform papillae of the tongue was described in 1905 and was initially thought to be associated with hookworm infestation&#46;<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> Other authors have reported associations with dermatological disorders such as linear circumflex ichthyosis<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a> and lichen planus<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">6</span></a>&#59; an association with systemic diseases such as hemochromatosis&#44; scleroderma&#44; pernicious anemia&#44; and iron-deficiency anemia has also been described&#46;<a class="elsevierStyleCrossRefs" href="#bib0035"><span class="elsevierStyleSup">7&#44;8</span></a> However&#44; all of these presumed associations were based on individual cases and not on systematic study&#44; and taking into account that a large study conducted in South Africa found pigmented fungiform papillae in 6&#37; of males and 8&#37; of women&#44;<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a> it is probable that they were merely coincidental&#46; In a more recent study&#44; 30&#37; of black women and 25&#37; of black men had pigmented fungiform papillae&#46;<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">4</span></a></p><p id="par0020" class="elsevierStylePara elsevierViewall">From a clinical point of view&#44; pigmented fungiform papillae usually develop in the second or third decade of life&#44;<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">4</span></a> though they may begin in childhood&#46; The condition has been observed in black and Japanese individuals&#44;<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">8</span></a> and in Australian aborigines<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">6</span></a> and Indians&#46;<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">6</span></a> Its incidence in those races is unknown but is considered substantially lower than in the black race&#46;<a class="elsevierStyleCrossRefs" href="#bib0020"><span class="elsevierStyleSup">4&#44;5&#44;7&#44;8</span></a></p><p id="par0025" class="elsevierStylePara elsevierViewall">The pathogenesis of pigmented fungiform papillae is unknown&#46; Based on the presence of pigmented fungiform papillae in a mother and daughter&#44; Werchniack et al<a class="elsevierStyleCrossRef" href="#bib0045"><span class="elsevierStyleSup">9</span></a> suggested autosomal dominant inheritance&#59; however&#44; this had not been previously described or corroborated in other articles&#46; The reason for the abnormalities being limited to the fungiform papillae also remains unknown&#46; The histological features of pigmented fungiform papillae include numerous melanophages in the lamina propria of the papillae with no inflammatory infiltrate&#46;<a class="elsevierStyleCrossRefs" href="#bib0020"><span class="elsevierStyleSup">4&#44;9</span></a> The pigment located within the melanophages stains positive for melanin with Fontana-Masson and negative for iron with Prussian blue&#46;<a class="elsevierStyleCrossRef" href="#bib0045"><span class="elsevierStyleSup">9</span></a> The acquired nature of the lesions and the presence of melanophages suggests a transient period of inflammation&#44; but the lack of inflammatory infiltrates is a histological marker of the condition&#46;<a class="elsevierStyleCrossRef" href="#bib0045"><span class="elsevierStyleSup">9</span></a></p><p id="par0030" class="elsevierStylePara elsevierViewall">The differential diagnosis should include other causes of pigmentation of the oral mucosa such as hemochromatosis&#44; pernicious anemia&#44; amalgam tattoo&#44; or Addison disease&#46; However&#44; a clear diagnosis can be reached in all those disorders on the basis either of the distribution and clinical characteristics of the pigmentation or the accompanying manifestations&#46;</p><p id="par0035" class="elsevierStylePara elsevierViewall">No effective treatment of pigmented fungiform papillae has been described&#44;<a class="elsevierStyleCrossRef" href="#bib0045"><span class="elsevierStyleSup">9</span></a> although in 1 case associated with iron-deficiency anemia a moderate reduction in pigmentation was reported after treatment of the anemia&#46;<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">7</span></a></p><p id="par0040" class="elsevierStylePara elsevierViewall">We describe the first case of pigmented fungiform papillae in an indigenous South American woman and we believe that this condition may be observed in all intensely pigmented races&#46; Given increasing migration into Europe&#44; more cases will be seen&#59; it is important to recognize pigmented fungiform papillae of the tongue to avoid incorrect diagnoses and avoid unnecessary additional tests&#46;<a class="elsevierStyleCrossRefs" href="#bib0020"><span class="elsevierStyleSup">4&#44;10</span></a></p></span>"
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Vol. 102. Núm. 9.
Páginas 739-740 (noviembre 2011)
Vol. 102. Núm. 9.
Páginas 739-740 (noviembre 2011)
Case and research letters
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Pigmentation of the Fungiform Papillae of the Tongue: A Report of 2 Cases
Pigmentación de las papilas fungiformes linguales. A propósito de dos casos
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J. Marcoval
Autor para correspondencia
jmarcoval@bellvitgehospital.cat

Corresponding author.
, J. Notario, S. Martín-Sala, I. Figueras
Servicio de Dermatología, Hospital Universitari de Bellvitge, IDIBELL, Barcelona, Spain
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To the Editor:

Pigmented fungiform papillae of the tongue was first described over a century ago.1 Although it seems fairly common in black individuals,2–4 few textbooks of dermatology and oral pathology refer to it.5 Some cases have been described in Japanese and Indian populations,5 but it is considered rare in oriental races and very rare in white individuals.

We present 2 patients in Spain recently diagnosed with pigmented fungiform papillae of the tongue. The first patient was a 35-year-old black woman. Her medical history included positive human immunodeficiency virus serology detected in 2006 and a cerebral tuberculoma treated with antituberculous drugs in 2007; she is currently on treatment with tenofovir, emtricitabine and nevirapine. The patient attended for pigmentation on the dorsum of the tongue that she had noticed a few months earlier. Examination of the oral mucosa showed that the patient had pigmentation limited to the fungiform papillae on some areas of the dorsum of the tongue. The pigmented papillae were in groups of 15 to 20 papillae, giving the dorsum of the tongue a mottled appearance (fig. 1). The second patient was a 43-year-old indigenous South American woman who had undergone cesarean section 22 years earlier. She was not taking any medication on a regular basis. The patient had noticed pigmentation on the dorsum of the tongue a few months earlier. Examination of the oral mucosa showed pigmentation limited to the fungiform papillae of the dorsum of the tongue. The majority of the fungiform papillae were pigmented and were present in a diffuse, symmetrical pattern, predominantly on the tip and lateral aspects of the dorsum of the tongue (fig. 2). The fungiform papillae in the central area were not pigmented. She had no accompanying symptoms.

Figure 1.

Case 1. Pigmentation limited to the fungiform papillae of the tongue, with irregularly distributed macules on the dorsum and lateral surfaces of the tongue in an indigenous African woman.

(0.1MB).
Figure 2.

Case 2. Pigmented fungiform papillae of the tongue with a diffuse symmetrical pattern, predominantly affecting the lateral surfaces of the tongue in an indigenous South American woman.

(0.09MB).

Pigmented fungiform papillae of the tongue was described in 1905 and was initially thought to be associated with hookworm infestation.1 Other authors have reported associations with dermatological disorders such as linear circumflex ichthyosis5 and lichen planus6; an association with systemic diseases such as hemochromatosis, scleroderma, pernicious anemia, and iron-deficiency anemia has also been described.7,8 However, all of these presumed associations were based on individual cases and not on systematic study, and taking into account that a large study conducted in South Africa found pigmented fungiform papillae in 6% of males and 8% of women,2 it is probable that they were merely coincidental. In a more recent study, 30% of black women and 25% of black men had pigmented fungiform papillae.4

From a clinical point of view, pigmented fungiform papillae usually develop in the second or third decade of life,4 though they may begin in childhood. The condition has been observed in black and Japanese individuals,8 and in Australian aborigines6 and Indians.6 Its incidence in those races is unknown but is considered substantially lower than in the black race.4,5,7,8

The pathogenesis of pigmented fungiform papillae is unknown. Based on the presence of pigmented fungiform papillae in a mother and daughter, Werchniack et al9 suggested autosomal dominant inheritance; however, this had not been previously described or corroborated in other articles. The reason for the abnormalities being limited to the fungiform papillae also remains unknown. The histological features of pigmented fungiform papillae include numerous melanophages in the lamina propria of the papillae with no inflammatory infiltrate.4,9 The pigment located within the melanophages stains positive for melanin with Fontana-Masson and negative for iron with Prussian blue.9 The acquired nature of the lesions and the presence of melanophages suggests a transient period of inflammation, but the lack of inflammatory infiltrates is a histological marker of the condition.9

The differential diagnosis should include other causes of pigmentation of the oral mucosa such as hemochromatosis, pernicious anemia, amalgam tattoo, or Addison disease. However, a clear diagnosis can be reached in all those disorders on the basis either of the distribution and clinical characteristics of the pigmentation or the accompanying manifestations.

No effective treatment of pigmented fungiform papillae has been described,9 although in 1 case associated with iron-deficiency anemia a moderate reduction in pigmentation was reported after treatment of the anemia.7

We describe the first case of pigmented fungiform papillae in an indigenous South American woman and we believe that this condition may be observed in all intensely pigmented races. Given increasing migration into Europe, more cases will be seen; it is important to recognize pigmented fungiform papillae of the tongue to avoid incorrect diagnoses and avoid unnecessary additional tests.4,10

References
[1]
T.M.R. Leonard.
Ankylostomiasis or uncinariasis.
JAMA, 45 (1905), pp. 588-594
[2]
B.J. Kaplan.
The clinical tongue.
Lancet, 277 (1961), pp. 1094-1097
[3]
B.S. Koplon, H.J. Hurley.
Prominent pigmented papillae of the tongue.
Arch Dermatol, 95 (1967), pp. 394-396
[4]
J.M. Holzwanger, R.I. Rudolph, C.L. Heaton.
Pigmented fungiform papillae of the tongue: a common variant of oral pigmentation.
Int J Dermatol, 13 (1974), pp. 403-408
[5]
Z. Isogai, T. Kanzaki.
Pigmented fungiform papillae of the tongue.
J Am Acad Dermatol, 29 (1993), pp. 489-490
[6]
G.W.M. Millington, S.N. Shah.
A case of pigmented fungiform lingual papillae in an Indian woman.
J Eur Acad Dermatol Venereol, 21 (2007), pp. 705
[7]
S.K. Ahn, J. Chung, S.H. Lee, W.S. Lee.
Prominent pigmented fungiform lingual papillae of the tongue.
Cutis, 58 (1996), pp. 410-412
[8]
C.K. Oh, M.B. Kim, H.S. Jang, K.S. Kwon.
A case of pigmented fungiform papillae of the tongue in an Asian Male.
J Dermatol, 27 (2000), pp. 350-351
[9]
A.E. Werchniak, C.A. Storm, J.G. Dinulos.
Hyperpigmented patches on the tongue of a young girl. Pigmented fungiform papillae of the tongue.
Arch Dermatol, 140 (2004), pp. 1275-1280
[10]
C.E. Scarff, R. Marks.
Pigmented fungiform papillae on the tongue in an Asian man.
Australas J Dermatol, 44 (2003), pp. 149-151

Please cite this article as: Marcoval J, et al. Pigmentación de las papilas fungiformes linguales. A propósito de dos casos. Actas Dermosifiliogr.2011;102:739-740.

Copyright © 2010. Elsevier España, S.L. and AEDV
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