Representation in Figures Depicting Penile Pathology in Urologic Textbooks

To investigate whether penile pathologies are presented diversely in urologic textbooks and identify areas where more diverse presentation is warranted.

Photographic depictions of penile pathologies in 9 urologic textbooks were assigned a Fitzpatrick skin phototype and constitutive skin color. Fitzpatrick skin phototypes ranged from I to VI, and constitutive skin colors were light, fair, medium, and dark. Fitzpatrick skin phototypes I-III were deemed nonskin of color, and IV-VI considered skin of color. Figures were classified based on pathology presented: infectious benign or sexually transmitted infection (STI), noninfectious benign, or malignant. Chi-square and odds ratios were used to compare skin color ranges across pathologic categories and determine where a figure depicting skin color would most likely be encountered.

Within 116 figures meeting inclusion criteria, 15 (51.7%) infectious/STI pathologies displayed skin of color, while 10 (27.8%) noninfectious benign and 7 (13.7%) malignant pathologies displayed skin of color. Within 85 diagnostic images, 15 (51.7%) images of infections/STIs, 10 (28.6%) noninfectious benign, and 4 (19.0%) malignant pathologies presented skin of color (P < 0.01). Overall, images of patients with skin of color were more likely depictions of infections/STIs than any other pathology (P < .001, OR = 2.26).

There is a lack of depictions of malignant and noninfectious benign penile pathology on the skin of color. This may contribute to continued disparities in the diagnosis and treatment of penile pathologies.