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Photo Quiz

Nodule on the Chin

Jesse Bracamonte, DO
Michael Underhill, DO
Molly Kresin, DO
Murk Rani, MBBS

American Family Physician. 2025;111(4):371-372.

Author disclosure: No relevant financial relationships.

JESSE BRACAMONTE, DO, FAAFP; MICHAEL UNDER-HILL, DO, FAAP; MOLLY KRESIN, DO; and MURK RANI, MBBS, Mayo Clinic, Phoenix, Arizona

Address correspondence to Jesse Bracamonte, DO, at Bracamonte.Jesse@mayo.edu.

Author disclosure: No relevant financial relationships.

  1. 1.Vitiello P, Sica A, Ronchi A, et al. Primary cutaneous B-cell lymphomas: an update. Front Oncol. 2020;10:651.
  2. 2.Kempf W, Denisjuk N, Kerl K, et al. Primary cutaneous B-cell lymphomas. J Dtsch Dermatol Ges. 2012;10(1):12-22 , quiz 23.
  3. 3.Seidl-Philipp M, Frischhut N, Höllweger N, et al. Known and new facts on basal cell carcinoma. J Dtsch Dermatol Ges. 2021;19(7):1021-1041.
  4. 4.Myers DJ, Fillman EP. Dermatofibroma. StatPearls. Updated February 24, 2024. Accessed January 2025. https://www.ncbi.nlm.nih.gov/books/NBK470538/
  5. 5.Layton AM, Morris C, Cunliffe WJ, et al. Immunohistochemical investigation of evolving inflammation in lesions of acne vulgaris. Exp Dermatol. 1998;7(4):191-197.
  6. 6.Zargaran M, Baghaei F. A clinical, histopathological and immunohistochemical approach to the bewildering diagnosis of keratoacanthoma. J Dent (Shiraz). 2014;15(3):91-97.

The editors of AFP welcome submissions for Photo Quiz. Guidelines for preparing and submitting a Photo Quiz manuscript can be found in the Authors' Guide at https://www.aafp.org/afp/photoquizinfo. To be considered for publication, submissions must meet these guidelines. Email submissions to afpphoto@aafp.org.

This series is coordinated by John E. Delzell Jr., MD, MSPH, associate medical editor.

A collection of Photo Quiz published in AFP is available at https://www.aafp.org/afp/photoquiz.

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