eMedicine Specialties > Dermatology > Bacterial Infections
Trichomycosis Pubis: Differential Diagnoses & Workup
Updated: Mar 26, 2009
- Overview
- Differential Diagnoses & Workup
- Treatment & Medication
- Follow-up
Differential Diagnoses
Other Problems to Be Considered
Piedra
Pediculosis pubis
Hair casts (peripilar casts, pseudonits)
Workup
Laboratory Studies
Hair culture can be used to grow the anaerobic diphtheroids present as short gram-positive rods. These studies usually are not essential but may be used if no response to initial treatment occurs or targeted antibacterial treatment fails to result in a cure (and fungal superinfection should be eliminated).
Histologic Findings
While usually not performed, in rare cases samples of the hair have been removed and sent for surgical pathology slide preparation. These cases document the presence of filamentous bacterial growth perpendicular to the hair shaft, present in a background of elaborated cement substance that makes up the concretions. The bacteria adhere to but do not penetrate the hair shaft. Superinfection with cocci or fungi also can be present.
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Differential Diagnoses & Workup: Trichomycosis Pubis |
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References
Crissey JT, Rebell GC, Laskas JJ. Studies on the causative organism of trichomycosis axillaris. J Invest Dermatol. May 1952;19(3):187-97. [Medline].
Freeman RG, McBride ME, Knox JM. Pathogenesis of trichomycosis axillaris. Arch Dermatol. Jul 1969;100(1):90-5. [Medline].
McBride ME, Freeman RG, Knox JM. The bacteriology of trichomycosis axillaris. Br J Dermatol. Aug 1968;80(8):509-13. [Medline].
Paxton FV. On a disease condition of the hairs of the axilla, probably of parasitic origin. J Cutan Med. 1869;3:133.
Savin JA, Somerville A, Noble WC. The bacterial flora of trichomycosis axillaris. J Med Microbiol. May 1970;3(2):352-6. [Medline].
Montes L, Vasquez C, Cataldi M. Electron microscopic study of infected hairs in trichomycosis axillaris. J Invest Dermatol. 1963;40:273-8.
White SW, Smith J. Trichomycosis pubis. Arch Dermatol. Apr 1979;115(4):444-5. [Medline].
Rho NK, Kim BJ. A corynebacterial triad: Prevalence of erythrasma and trichomycosis axillaris in soldiers with pitted keratolysis. J Am Acad Dermatol. Feb 2008;58(2 Suppl):S57-8. [Medline].
Lestringant GG, Qayed KI, Fletcher S. Is the incidence of trichomycosis of genital hair underestimated?. J Am Acad Dermatol. Feb 1991;24(2 Pt 1):297-8. [Medline].
Zaias N, Taplin D, Rebell GS. Final Report, Republic of Panama Medical Research. Washington, DC: Walter Reed Army Institute of Research; 1964.
Bargman H. Trichomycosis of the scrotal hair. Arch Dermatol. Mar 1984;120(3):299. [Medline].
Noble WC, Savin JA. Trichomycosis of the scrotal hair. Arch Dermatol. Jan 1985;121(1):25. [Medline].
Rosen T, Krawczynska AM, McBride ME, Ellner K. Naftifine treatment of trichomycosis pubis. Int J Dermatol. Sep 1991;30(9):667-9. [Medline].
O'Dell ML. Skin and wound infections: an overview. Am Fam Physician. May 15 1998;57(10):2424-32. [Medline]. [Full Text].
Further Reading
Keywords
trichomycosis pubis, trichomycosis, bacterial infection, hair shaft infection
Differential Diagnoses & Workup: Trichomycosis Pubis