Preneoplastic and Primary Scrotal Cancer

Scrotal Cancer Incidence Rates and Trends-United States, 1999-2020

OBJECTIVE

To examine population-level scrotal cancer incidence rates and trends among adult men in the United States.

METHODS

Data from the United States Cancer Statistics, covering approximately 96% of the United States population, were analyzed to calculate age-standardized incidence rates of scrotal cancer among men aged 18 years and older from 1999 to 2020. Trends in incidence rates were evaluated by age, race and ethnicity, Census region, and histology using joinpoint regression.

RESULTS

Overall, 4669 men were diagnosed with scrotal cancer (0.20 per 100,000). Incidence rates were highest among men aged 70 years and older (0.82 per 100,000). Rates were higher among non-Hispanic Asian or Pacific Islander men (0.31 per 100,000) compared to other race and ethnicity groups. The most common histologic subtypes were squamous cell carcinoma (35.9%), extramammary Paget disease (20.8%), and sarcoma (20.5%). Incidence rates decreased by 2.9% per year from 1999 to 2019 for non-Hispanic Asian or Pacific Islander men, decreased by 8.1% per year from 1999 to 2006 for basal cell carcinomas, and increased by 1.8% per year from 1999 to 2019 for extramammary Paget disease; otherwise, rates remained stable for all other variables examined.

CONCLUSION

While scrotal cancer incidence rates were higher than previously reported, rates were still low and stable over time.

Scrotal squamous cell carcinoma: a case report

Scrotal squamous cell carcinoma (SCC) is a rare condition that typically manifests in the sixth decade of life and usually presents as a painless, solitary nodule that slowly increases in size, ulcerates, and gets infected. The diagnosis is often delayed, as the majority of patients tend to avoid seeking medical help due to embarrassment. We present a 62-year-old male with a massive 8 cm ulcerating painless tumor in the scrotum. A patient underwent scrotal extirpation with bilateral orchofuniculectomy and diagnostic bilateral inguinal lymphadenectomy. Histopathology revealed a well-differentiated SCC of the scrotal skin. Ignorance, lack of self-awareness, knowledge about risk factors and aggravated access to healthcare facilities remain important reasons for late diagnosis.

WHO 2022 classification of penile and scrotal cancers: updates and evolution

Squamous cell carcinoma (SCC) is the most common malignant tumour of the penis. The 2022 WHO classification reinforces the 2016 classification and subclassifies precursor lesions and tumours into human papillomavirus (HPV)-associated and HPV-independent types. HPV-associated penile intraepithelial neoplasia (PeIN) is a precursor lesion of invasive HPV- associated SCC, whereas differentiated PeIN is a precursor lesion of HPV-independent SCC. Block-type positivity of p16 immunohistochemistry is the most practical daily utilised method to separate HPVassociated from HPVindependent penile SCC. If this is not feasible, the term SCC, not otherwise specified (NOS) is appropriate. Certain histologies that were previously classified as "subtypes" are now grouped, and coalesced as "patterns", under the rubric of usual type SCC and verrucous carcinoma (e.g. usual-type SCC includes pseudohyperplastic and acantholytic/pseudoglandular carcinoma, and carcinoma cuniculatum is included as a pattern of verrucous carcinoma). If there is an additional component of the usual type of invasive SCC (formerly termed hybrid histology), the tumour would be a mixed carcinoma (e.g. carcinoma cuniculatum or verrucous carcinoma with usual invasive SCC); in such cases, reporting of the relative percentages in mixed tumours may be useful. The consistent use of uniform nomenclature and reporting of percentages will inform the refinement of future reporting classification schemes and guidelines/recommendations. The classification of scrotal tumours is provided for the first time in the fifth edition of the WHO Blue book, and it follows the schema of penile cancer classification for both precursor lesions and the common SCC of the scrotum. Basal cell carcinoma of the scrotum may have a variable clinical course and finds a separate mention.

The gynecologic examination of the transfeminine person after penile inversion vaginoplasty

As more transfeminine patients (transgender and gender-diverse persons, sex assigned male at birth, who identify on the feminine spectrum of gender) are undergoing gender-affirming penile inversion vaginoplasty, gynecologists, as providers of vaginal care for both native and neovaginas, should be prepared to welcome these patients into their practice and offer long-term pelvic healthcare. Many parts of the anatomy, clinical examination, and aftercare differ from both native vaginas and other neovaginal surgical techniques. Transgender and gender-diverse patients cite a lack of clinician knowledge as a barrier to accessing affirming and competent healthcare. Although publications are emerging regarding this procedure, most focus on intraoperative and postoperative complications. These studies are not positioned to provide long-term pelvic health guidance or robust instruction on typical examination findings. This clinical opinion aims to address that knowledge gap by describing the gynecologic examination in the transfeminine person who has undergone a penile inversion vaginoplasty. We review the anatomic changes with surgery and the neovagina's physiology. We describe the examination of the vulva, vagina, and urethra and discuss special considerations for performing pelvic examinations on patients with a penile inversion vaginoplasty neovagina. We will also address common pathologic findings and their initial management. This clinical opinion originates from the expertise of gynecologists who have cared for high volumes of transfeminine patients who have undergone penile inversion vaginoplasties at tertiary care centers performing gender-affirming genital surgery, along with existing research on postpenile inversion vaginoplasty outcomes. Gynecologists should be familiar with the anatomic changes that occur with penile inversion vaginoplasty gender-affirming surgery and how those changes affect care. Providing transgender patients with comprehensive care including this sensitive examination can and should be part of the gynecologist's scope of practice.

A Case Report of Scrotal Squamous Cell Carcinoma Secondary to Chronic Urinary Irritation

Most scrotum cancers are associated with occupational exposure. We report a case of a squamous cell carcinoma of the scrotum in a patient with a proximal meatus, secondary to mistreated urethral stricture. Based on our observations in this case, we think that chronic urinary inflammation of the scrotal skin may also be considered as a risk factor of scrotal cancer.