eMedicine Specialties > Dermatology > Bacterial Infections

Trichomycosis Pubis: Differential Diagnoses & Workup

Author: Vladimir O Osipov, MD, Assistant Professor, Department of Pathology, Section of Bone and Soft Tissue Pathology, Section of Gastrointestinal Pathology, Medical College of Wisconsin
Coauthor(s): Scott M Acker, MD, Associate Professor, Director of Dermatopathology, Departments of Dermatology and Pathology, University of Alabama at Birmingham; Peter Langenstroer, MD, Associate Professor, Department of Urology, Medical College of Wisconsin; Milton W Datta, MD, Assistant Professor, Departments of Pathology, Urology, and Hematology-Oncology, Emory University School of Medicine
Contributor Information and Disclosures

Updated: Mar 26, 2009

Differential Diagnoses

Chromhidrosis

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.

More on Trichomycosis Pubis

Overview: Trichomycosis Pubis
Differential Diagnoses & Workup: Trichomycosis Pubis
Treatment & Medication: Trichomycosis Pubis
Follow-up: Trichomycosis Pubis
References

References

  1. Crissey JT, Rebell GC, Laskas JJ. Studies on the causative organism of trichomycosis axillaris. J Invest Dermatol. May 1952;19(3):187-97. [Medline].

  2. Freeman RG, McBride ME, Knox JM. Pathogenesis of trichomycosis axillaris. Arch Dermatol. Jul 1969;100(1):90-5. [Medline].

  3. McBride ME, Freeman RG, Knox JM. The bacteriology of trichomycosis axillaris. Br J Dermatol. Aug 1968;80(8):509-13. [Medline].

  4. Paxton FV. On a disease condition of the hairs of the axilla, probably of parasitic origin. J Cutan Med. 1869;3:133.

  5. Savin JA, Somerville A, Noble WC. The bacterial flora of trichomycosis axillaris. J Med Microbiol. May 1970;3(2):352-6. [Medline].

  6. Montes L, Vasquez C, Cataldi M. Electron microscopic study of infected hairs in trichomycosis axillaris. J Invest Dermatol. 1963;40:273-8.

  7. White SW, Smith J. Trichomycosis pubis. Arch Dermatol. Apr 1979;115(4):444-5. [Medline].

  8. 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].

  9. 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].

  10. Zaias N, Taplin D, Rebell GS. Final Report, Republic of Panama Medical Research. Washington, DC: Walter Reed Army Institute of Research; 1964.

  11. Bargman H. Trichomycosis of the scrotal hair. Arch Dermatol. Mar 1984;120(3):299. [Medline].

  12. Noble WC, Savin JA. Trichomycosis of the scrotal hair. Arch Dermatol. Jan 1985;121(1):25. [Medline].

  13. Rosen T, Krawczynska AM, McBride ME, Ellner K. Naftifine treatment of trichomycosis pubis. Int J Dermatol. Sep 1991;30(9):667-9. [Medline].

  14. 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

Contributor Information and Disclosures

Author

Vladimir O Osipov, MD, Assistant Professor, Department of Pathology, Section of Bone and Soft Tissue Pathology, Section of Gastrointestinal Pathology, Medical College of Wisconsin
Vladimir O Osipov, MD is a member of the following medical societies: American Society for Clinical Pathology, College of American Pathologists, and United States and Canadian Academy of Pathology
Disclosure: Nothing to disclose.

Coauthor(s)

Scott M Acker, MD, Associate Professor, Director of Dermatopathology, Departments of Dermatology and Pathology, University of Alabama at Birmingham
Scott M Acker, MD is a member of the following medical societies: Alpha Omega Alpha, American Medical Association, American Society for Clinical Pathology, and Southern Medical Association
Disclosure: Nothing to disclose.

Peter Langenstroer, MD, Associate Professor, Department of Urology, Medical College of Wisconsin
Peter Langenstroer, MD is a member of the following medical societies: American Urological Association
Disclosure: Nothing to disclose.

Milton W Datta, MD, Assistant Professor, Departments of Pathology, Urology, and Hematology-Oncology, Emory University School of Medicine
Milton W Datta, MD is a member of the following medical societies: College of American Pathologists and United States and Canadian Academy of Pathology
Disclosure: Nothing to disclose.

Medical Editor

Daniel Mark Siegel, MD, MS, Director, Procedural Dermatology Fellowship Program, Clinical Professor of Dermatology, Department of Dermatology, State University of New York Downstate
Daniel Mark Siegel, MD, MS is a member of the following medical societies: American Academy of Dermatology, American Academy of Facial Plastic and Reconstructive Surgery, American College of Mohs Micrographic Surgery and Cutaneous Oncology, American College of Physician Executives, American Society for Dermatologic Surgery, American Society for Laser Medicine and Surgery, American Society for MOHS Surgery, and International Society for Dermatologic Surgery
Disclosure: Nothing to disclose.

Pharmacy Editor

Michael J Wells, MD, Associate Professor, Department of Dermatology, Texas Tech University Health Sciences Center
Michael J Wells, MD is a member of the following medical societies: Alpha Omega Alpha, American Academy of Dermatology, American Medical Association, and Texas Medical Association
Disclosure: Nothing to disclose.

Managing Editor

Lester F Libow, MD, Dermatopathologist, South Texas Dermatopathology Laboratory
Lester F Libow, MD is a member of the following medical societies: American Academy of Dermatology, American Society of Dermatopathology, and Texas Medical Association
Disclosure: Nothing to disclose.

CME Editor

Joel M Gelfand, MD, MSCE, Medical Director, Clinical Studies Unit, Assistant Professor, Department of Dermatology, Associate Scholar, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania
Joel M Gelfand, MD, MSCE is a member of the following medical societies: Society for Investigative Dermatology
Disclosure: AMGEN Consulting fee Consulting; AMGEN Grant/research funds None; Genentech Consulting fee Consulting; Centocor Consulting fee Consulting; Centocor Grant/research funds None; Covance Consulting fee Consulting; Shire  Consulting

Chief Editor

Dirk M Elston, MD, Director, Department of Dermatology, Geisinger Medical Center
Dirk M Elston, MD is a member of the following medical societies: American Academy of Dermatology
Disclosure: Nothing to disclose.

 
 
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