0
We're unable to sign you in at this time. Please try again in a few minutes.
Retry
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
Retry
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 ......
Clinical Problem Solving: Pathology |

Pathology Quiz Case 2: Diagnosis

JAMA Otolaryngol Head Neck Surg. 2013;139(4):426. doi:10.1001/jamaoto.2013.140b.
Text Size: A A A
Published online

Extract

Diagnosis: Folliculitis keloidalis nuchae.

Folliculitis keloidalis nuchae (also known as acne keloidalis) is a rare primary scarring alopecia characteristically involving the nape of the neck and occipital region and typically afflicting adult African American males younger than 40 years.1,2 Grossly, the lesion begins as follicular papules and pustules that progressively enlarge, forming confluent thickened plaques with or without draining sinuses.1 When seeing the lesion late in the disease process, a malignant neoplasm may be considered. Overall, the pathogenesis remains unknown. Postulated mechanisms include in-curving hairs with or without trauma (from football helmets, etc) and secondary bacterial infection leading to a scarring inflammatory process.1,3 Associations listed in the medical literature include antiepileptic drug or cyclosporine use,1,4 elevated testosterone levels,5 seborrheic dermatitis,5 frequently cut hair (short hair) in African descendents,6 and elevated mast cell numbers in the occipital region.1 Some individuals with folliculitis keloidalis nuchae have reportedly developed secondary cutis vertices gyrata characterized by deep furrows and convolutions of the scalp.1

Topics

pathology

Sign in

Create a free personal account to sign up for alerts, share articles, and more.

Purchase Options

• Buy this article
• Subscribe to the journal

First Page Preview

View Large
First page PDF preview

First Page Preview

View Large
First page PDF preview

Figures

Tables

References

Correspondence

CME
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.
Submit a Comment

Multimedia

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

Sign in

Create a free personal account to sign up for alerts, share articles, and more.

Purchase Options

• Buy this article
• Subscribe to the journal

Related Content

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

Articles Related By Topic
Related Collections
PubMed Articles
Jobs
brightcove.createExperiences();