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Excoriation Disorder Workup

  • Author: Noah S Scheinfeld, JD, MD, FAAD; Chief Editor: Dirk M Elston, MD  more...
 
Updated: Jan 26, 2016
 

Approach Considerations

To rule out systemic disease, the following tests are indicated:

  • Complete blood count (CBC) with differential
  • Chemistry profile
  • Determination of thyrotropin levels
  • Fasting plasma glucose level

The appropriate workup for cancer can be performed if indicated by the patient’s history. A chest radiograph can help to rule out suspected lymphoma. Patients can be assessed for contact dermatitis or food allergies. A skin biopsy can be helpful to rule out other pathologic conditions.

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Histologic Findings

Biopsy samples of neurotic excoriations generally reveal epidermal ulceration with a mild superficial mixed infiltrate and crusts formed from fluid and red blood cells (RBCs). In older lesions, superficial dermal scar tissue and changes of lichen simplex chronicus (eg, irregular epidermal hyperplasia with hyperkeratosis, hypergranulosis, and vertical streaking of papillary dermal collagen) may be observed.

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Imaging Studies

Functional MRI can define abnormal brain activation in picking disorders.[14]

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Contributor Information and Disclosures
Author

Noah S Scheinfeld, JD, MD, FAAD Assistant Clinical Professor, Department of Dermatology, Weil Cornell Medical College; Consulting Staff, Department of Dermatology, St Luke's Roosevelt Hospital Center, Beth Israel Medical Center, New York Eye and Ear Infirmary; Assistant Attending Dermatologist, New York Presbyterian Hospital; Assistant Attending Dermatologist, Lenox Hill Hospital, North Shore-LIJ Health System; Private Practice

Noah S Scheinfeld, JD, MD, FAAD is a member of the following medical societies: American Academy of Dermatology

Disclosure: Serve(d) as a speaker or a member of a speakers bureau for: Abbvie<br/>Received income in an amount equal to or greater than $250 from: Optigenex<br/>Received salary from Optigenex for employment.

Chief Editor

Dirk M Elston, MD Professor and Chairman, Department of Dermatology and Dermatologic Surgery, Medical University of South Carolina College of Medicine

Dirk M Elston, MD is a member of the following medical societies: American Academy of Dermatology

Disclosure: Nothing to disclose.

Acknowledgements

David F Butler, MD Professor of Dermatology, Texas A&M University College of Medicine; Founding Chair, Department of Dermatology, Scott and White Clinic

David F Butler, MD is a member of the following medical societies: Alpha Omega Alpha, American Academy of Dermatology, American Medical Association, American Society for Dermatologic Surgery, American Society for MOHS Surgery, Association of Military Dermatologists, and Phi Beta Kappa

Disclosure: Nothing to disclose.

Rosalie Elenitsas, MD Herman Beerman Associate Professor of Dermatology, University of Pennsylvania School of Medicine; Director, Penn Cutaneous Pathology Services, Department of Dermatology, University of Pennsylvania Health System

Rosalie Elenitsas, MD is a member of the following medical societies: American Academy of Dermatology and American Society of Dermatopathology

Disclosure: Lippincott Williams Wilkins Royalty Textbook editor

Shyam Verma, MBBS, DVD, FAAD Clinical Associate Professor, Department of Dermatology, University of Virginia; Adjunct Associate Professor, Department of Dermatology, State University of New York at Stonybrook, Adjunct Associate Professor, Department of Dermatology, University of Pennsylvania

Shyam Verma, MBBS, DVD, FAAD is a member of the following medical societies: American Academy of Dermatology

Disclosure: Nothing to disclose.

References
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A picker's nodules with no crust and a scarred appearance.
A picker's nodule with crusted lesions.
 
 
 
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