We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Correspondence |

Lonely Hair Sign: Not Specific for Frontal Fibrosing Alopecia—Reply

Antonella Tosti, MD
Arch Dermatol. 2012;148(10):1208-1209. doi:10.1001/archdermatol.2012.1873.
Text Size: A A A
Published online


In reply

I agree with Camacho in that it is common to see hairs that are spared by the inflammatory process in all types of cicatricial alopecias. However, the term lonely hair sign describes the presence of one or few isolated terminal hairs in the middle of the forehead. This sign is specific for frontal fibrosing alopecia, the only cicatricial alopecia characterized by progressive recession of the frontotemporal hairline. The lonely hairs are single, not grouped in tufts, and are commonly seen in untreated patients. At dermoscopy, the lonely hair is seen to be not affected by peripilar erythema or scales, but its surrounding skin shows loss of follicular openings typical of established scarring alopecia. The lonely hair sign is helpful to clinically distinguish frontal fibrosing alopecia from other conditions that can cause frontotemporal hair loss such as traction alopecia, androgenetic alopecia, or alopecia areata.

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

First Page Preview

View Large
First page PDF preview





October 1, 2012
Francisco M. Camacho, MD
Arch Dermatol. 2012;148(10):1208-1209. doi:10.1001/archdermatol.2012.1736.
Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

1 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.

Articles Related By Topic
Related Collections