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A Subungual Nodule of Recent Onset

A Subungual Nodule of Recent Onset Abstract REPORT OF A CASE A 30-year-old physician walked barefoot on the sandy bank of the Carrao River in the Canaima National Park in Venezuela. Three days later, while returning to the United States, he noticed a painful white pea-sized papule on the tip of the second toe (Fig 1). No other lesions appeared. Microscopic features of the excised papule are seen in Fig 2.What is your diagnosis?A Subungual Nodule of Recent Onset DIAGNOSIS: Tungiasis. DISCUSSION The hematoxylin-eosin-stained section illustrates a transverse segment of a gravid female chigoe flea, Tunga penetrans.Tungiasis is usually acquired by walking barefoot in endemic areas. Although feet are most commonly involved, any cutaneous surface can be affected and squatting may result in infestation of the perineum and buttocks.1 The small adult fleas are only about 1 mm long and while both males and females burrow will seek a blood References 1. Zalar GL, Walther RR: Infestation by Tunga penetrans . Arch Dermatol 1980;116:80-81.Crossref 2. Goldman L: Tungiasis in travelers from tropical Africa . JAMA 1976;236:1386.Crossref 3. Brothers WS, Heckmann CA: Tungiasis in North America . Cutis 1980;25:636-638. 4. Connor DH: Tungiasis , in Binford CH, Connor DH (eds): Pathology of Tropical and Extraordinary Diseases . Washington, DC, Armed Forces Institute of Pathology, 1976, pp 610-614. 5. Ade-Serrano MA, Olomolehin OG, Adewunmi A: Treatment of human tungiasis with niridazole (Ambilhar): A double-blind place-bo-controlled trial . Ann Trop Med Parasitol 1982;76:89-92. 6. Hoeppli R: Early references to the occurrence of Tunga penetrans in tropical Africa . Acta Trop 1963;20:143-153. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Dermatology American Medical Association

A Subungual Nodule of Recent Onset

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Publisher
American Medical Association
Copyright
Copyright © 1988 American Medical Association. All Rights Reserved.
ISSN
0003-987X
eISSN
1538-3652
DOI
10.1001/archderm.1988.01670030095030
Publisher site
See Article on Publisher Site

Abstract

Abstract REPORT OF A CASE A 30-year-old physician walked barefoot on the sandy bank of the Carrao River in the Canaima National Park in Venezuela. Three days later, while returning to the United States, he noticed a painful white pea-sized papule on the tip of the second toe (Fig 1). No other lesions appeared. Microscopic features of the excised papule are seen in Fig 2.What is your diagnosis?A Subungual Nodule of Recent Onset DIAGNOSIS: Tungiasis. DISCUSSION The hematoxylin-eosin-stained section illustrates a transverse segment of a gravid female chigoe flea, Tunga penetrans.Tungiasis is usually acquired by walking barefoot in endemic areas. Although feet are most commonly involved, any cutaneous surface can be affected and squatting may result in infestation of the perineum and buttocks.1 The small adult fleas are only about 1 mm long and while both males and females burrow will seek a blood References 1. Zalar GL, Walther RR: Infestation by Tunga penetrans . Arch Dermatol 1980;116:80-81.Crossref 2. Goldman L: Tungiasis in travelers from tropical Africa . JAMA 1976;236:1386.Crossref 3. Brothers WS, Heckmann CA: Tungiasis in North America . Cutis 1980;25:636-638. 4. Connor DH: Tungiasis , in Binford CH, Connor DH (eds): Pathology of Tropical and Extraordinary Diseases . Washington, DC, Armed Forces Institute of Pathology, 1976, pp 610-614. 5. Ade-Serrano MA, Olomolehin OG, Adewunmi A: Treatment of human tungiasis with niridazole (Ambilhar): A double-blind place-bo-controlled trial . Ann Trop Med Parasitol 1982;76:89-92. 6. Hoeppli R: Early references to the occurrence of Tunga penetrans in tropical Africa . Acta Trop 1963;20:143-153.

Journal

Archives of DermatologyAmerican Medical Association

Published: Mar 1, 1988

References