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Nonmelanocytic Lesions
Published in Ashfaq A Marghoob, Ralph Braun, Natalia Jaimes, Atlas of Dermoscopy, 2023
Iris Zalaudek, Alan Cameron, Cliff Rosendahl, Shushanik Karapetyan, Pawel Pietkiewicz
The dermatoscopy of Erythroplasia of Queyrat (EQ), which is Bowen's disease of the glans penis, was evaluated by Errichetti et al. [8]. They studied 14 cases and compared them with cases of psoriasis, Zoon plasma cell balanitis, and candida balanitis. They found that glomerular (coiled) vessels, both clustered and randomly distributed, were highly predictive of EQ (Figure 6d.16).
Miscellaneous inflammatory diseases
Published in Aimilios Lallas, Enzo Errichetti, Dimitrios Ioannides, Dermoscopy in General Dermatology, 2018
Enzo Errichetti, Aimilios Lallas
Balanitis is an inflammation of the glans penis often extending to the foreskin (balanoposthitis), which may be due to several conditions, especially psoriasis, plasma cell (Zoon) balanitis, candidal balanitis, lichen planus, lichen sclerosus, Reiter syndrome, and fixed drug eruption. Instead, erythroplasia of Queyrat is a form of penile intraepithelial neoplasia.16
The red glans penis
Published in Manu Shah, Ariyaratne de Silva, The Male Genitalia, 2018
Manu Shah, Ariyaratne de Silva
The diagnosis is usually made clinically. Lichen planus of the penis may be the only presentation of the disease on the body. Single, isolated lesions may resemble Erythroplasia of Queyrat. Skin biopsy may be helpful where diagnosis is uncertain or where the condition has failed to respond to appropriate therapy. The differential diagnosis includes most of the inflammatory dermatoses affecting the penis but also pre-malignant lesions.
The management of penile intraepithelial neoplasia (PeIN): clinical and histological features and treatment of 345 patients and a review of the literature
Published in Journal of Dermatological Treatment, 2022
G. Kravvas, L. Ge, J. Ng, T. N. Shim, P. R. Doiron, R. Watchorn, J. Kentley, E. Panou, M. Dinneen, A. Freeman, C. Jameson, A. Haider, N. Francis, S. Minhas, H. Alnajjar, A. Muneer, C. B. Bunker
PeIN is synonymous with other histological terms that have previously been used including penile carcinoma in situ (PCIS) and squamous intraepithelial lesion (SIL). Clinically, three principal morphological entities are recognized, being bowenoid papulosis (BP), erythroplasia of Queyrat, (EQ) and Bowen’s disease of the penis (BDP) (1,7). Histologically, PeIN is characterized by dysplastic changes with an intact basement membrane and is now subdivided into differentiated (non-HPV-related and lichen sclerosus (LSc)-related) and undifferentiated (HPV-related) that in turn are associated with specific PSSC subtypes (1,6,8–10). Most risk factors for PeIN (and PSCC) are known and primary prevention should be achievable (1,9,11,12). Treatment can be medical and surgical.