Extramammary Paget's disease of penis and scrotum

Anatomic Subtype Differences in Extramammary Paget Disease: A Meta-Analysis

Importance

Extramammary Paget disease (EMPD) is a rare, highly recurrent cutaneous malignant neoplasm of unclear origin. EMPD arises most commonly on the vulvar and penoscrotal skin. It is not presently known how anatomic subtype of EMPD affects disease presentation and management.

Objective

To compare demographic and tumor characteristics and treatment approaches for different EMPD subtypes. Recommendations for diagnosis and treatment are presented.

Data Sources

MEDLINE, Embase, Web of Science Core Collection, and Cochrane Reviews CENTRAL from December 1, 1990, to October 24, 2022.

Study Selection

Articles were excluded if they were not in English, reported fewer than 3 patients, did not specify information by anatomic subtype, or contained no case-level data. Metastatic cases on presentation were also excluded.

Data Extraction and Synthesis

Abstracts of 1295 eligible articles were independently reviewed by 5 coauthors, and 135 articles retained. Reporting was in accordance with Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) reporting guidelines. The analysis was cunducted in August 2019 and updated in November 2022.

Findings

Most vulvar EMPD cases were asymptomatic, and diagnosis was relatively delayed (mean, 25.1 months). Although most vulvar EMPD cases were intraepidermal (1247/1773 [70.3%]), radical surgeries were still performed in almost one-third of cases. Despite this aggressive surgical approach, 481 of 1423 (34%) recurred, commonly confined to the skin and mucosa (177/198 [89.4%]). By contrast, 152 of 1101 penoscrotal EMPD cases (14%) recurred, but more than one-third of these recurrences were regional or associated with distant metastases (54 of 152 [35.5%]). Perianal EMPD cases recurred in one-third of cases (74/218 [33.9%]), with one-third of these recurrences being regional or associated with distant metastasis (20 of 74 [27.0%]). Perianal EMPD also had the highest rate of invasive disease (50% of cases).

Conclusions and Relevance

The diagnosis and treatment of EMPD should differ based on anatomic subtypes. Considerations for updated practice may include less morbid treatments for vulvar EMPD, which is primarily epidermal, and close surveillance for local recurrence in vulvar EMPD and metastatic recurrence in perianal EMPD. Recurrences in penoscrotal subtype were less common, and selective surveillance in this subtype may be considered. Limitations of this study include the lack of replication cohorts and the exclusion of studies that did not stratify outcomes by anatomic subtype.

Extramammary Paget's Disease of the Scrotal and Penile: A Case Report and Review of the Literature

INTRODUCTION

Extramammary Paget's disease of the scrotum and penis is a relatively rare cutaneous malignant tumor. At present, its pathogenesis, and clinical and pathological characteristics are not very clear. This is controversial regarding surgical margin width to decrease the high recurrence rate. This paper aimed to report the case and review the literature of extramammary Paget's disease of scrotum and penis.

CASE PRESENTATION

We presented the case of a 74-year-old male patient with the patchy erythema and pruritus in the perineum who was admitted to our department. Biopsy of the large plaque revealed Paget disease. Under the condition of ensuring negative surgical margins by rapid frozen pathology, a wide local excision of the lesion, bilateral orchiectomy, and adnexectomy were performed on the patient. Pathology revealed that many scattered vacuolated Paget cells were observed in the epidermal layer, and the diagnosis was Paget's disease of the scrotum and penis. The 2 cm outside the skin lesion was used as the initial surgical margin, and free skin flap transplantation was used to repair the surgical wound. The patient recovered well and was discharged 1 week after surgery.

CONCLUSION

Currently, histopathologic biopsy is the most important diagnostic method for EMPD. Once confirmed, for patients eligible for surgical intervention, wide local excision of the lesion and rapid intraoperative frozen pathological examination should be performed as soon as possible. The skin flap transplantation is the first choice for the repair of large-scale wound after surgery.

Pathologically Confirmed Subcutaneous Fat and Lymphovascular Invasion of a Hypopigmented Area in Extramammary Paget Disease

Extramammary Paget disease (EMPD) is a rare adenocarcinoma that usually occurs in areas of the body that are rich in apocrine sweat glands. Great depth of tumor invasion is a well-known risk factor for worse prognosis. Paget cells usually are limited to the epidermis, whereas invasive EMPD, which infiltrates the dermis, is relatively rare. It is even rarer for the tumor to spread beyond the dermis. Only 3.1% of patients with EMPD of the penis and scrotum have exhibited infiltration of the subcutaneous fat layer. We report a case of a 62-year-old male with EMPD that invaded the subcutaneous fat layer. He presented with a several-year history of a slowly expanding erythematous plaque with the hypopigmented area on the left penoscrotum. One month before presentation, the patient had undergone punch biopsy at another hospital and diagnosed with EMPD. He had no personal history of urogenital cancers. The patient was treated with Mohs micrographic surgery, and negative margins were achieved after four stages. The histopathologic findings revealed Paget cells scattered throughout the epidermis. At the hypopigmented area, Paget cells extended to the subcutaneous fat layer with lymphovascular invasion. There was no evidence of recurrence at seven months postoperatively. Herein, we describe a case of hypopigmented EMPD that infiltrated the subcutaneous layer, which rarely has been reported in Korea.

Axillary masses as clinical manifestations of male sweat gland carcinoma associated with extramammary Paget’s disease and accessory breast carcinoma: two cases report and literature review

Background

Male cases of accessory breast carcinoma and sweat gland carcinoma associated with extramammary Paget’s disease of the axilla are uncommon. In clinical diagnosis and treatment, it is necessary to determine the disease carefully and make a reasonable treatment strategy according to the patient’s situation.

Case presentation

We described two male cases of the special tumor with an axillary mass as the first clinical symptom, one of which was diagnosed as accessory breast cancer and the other as sweat gland cancer associated with extramammary Paget’s disease. We treated the two diseases individually in the hopes of providing a reference for the diagnosis and management of diseases with axillary nodules as the initial symptom.

Conclusions

The reports of these two cases can provide reference and corresponding thinking for clinical differentiation of axillary lymphadenopathy caused by different causes and subsequent treatment. These two cases may further enrich the database of rare cases and provide some ideas for the treatment of axillary lymphadenopathy caused by different causes.

Poorly Differentiated Scrotal Carcinoma With Apocrine Immunophenotype

ABSTRACT

Cutaneous carcinoma of the scrotum is rare with the most common type being squamous cell carcinoma. Here, we report 6 cases of poorly differentiated carcinoma with apocrine immunophenotype. Mean age at presentation was 68 years (range: 31-91 years). Clinical presentation included eczematous rash over mass, scrotal cyst, ulcerated mass, and mass. Tumor size ranged from 1.2 to 5.5 cm (average 2.5 cm). The tumors were solid with involvement of the dermis/hypodermis and composed of cords and nests of eosinophilic cells displaying nuclei with prominent nucleoli and surrounded by desmoplastic stroma. Focal squamous differentiation was evident in one case (17%). An intraductal component was seen in one case (17%). Pagetoid spread in the epidermis was seen in 3 cases. There was no morphologic evidence of apocrine differentiation. By immunohistochemistry, the tumor cells were positive for GCDFP-15 (n = 6/6), GATA3 (n = 6/6), CK7 (n = 5/5), AR (n = 4/4), and mammaglobin (n = 3/5). Five (83%) patients had metastases at diagnosis. Treatment included wide local excisions and inguinal lymph node dissection, followed by chemotherapy (gemcitabine, carboplatin; n = 3), trastuzumab/Lupron (n = 1), tamoxifen/Arimidex (n = 1), and radiotherapy (n = 1). Two patients (40%) were dead of disease, less than 2 years from diagnosis. Four patients developed metastases to lymph nodes, liver, bones, and lungs. Molecular analysis (n = 2) detected a HER-2 mutation in one and microsatellite instability in another. Although the presence of an intraepidermal pagetoid component could hint toward the diagnosis of invasive extramammary Paget disease, tumors without an intraepidermal component could be diagnostically challenging given the lack of morphologic evidence of apocrine differentiation.

Extramammary Paget's Disease in the Genital Area of a Male: A Case Report and Review of the Literature

Extramammary Paget's disease (EMPD) is an uncommon intraepithelial malignancy that is rarely found in the male. Currently, there is very little knowledge pertaining to EMPD imaging, particularly in cases that involve the scrotum. Here, a 67-year-old man with lichenification on his left scrotum confirmed to be EMPD was reviewed. Bloodwork did not return a positive result, but syphilis-specific antibodies were found. Conventional high-frequency ultrasound (US) and contrast-enhanced ultrasound (CEUS) imaging were utilized to determine the lesion size and blood perfusion. In the present case, the lesion's size and involvement were vividly depicted by CEUS, while results obtained by conventional US were grossly underestimated. Consequently, multimodal imaging assessment is likely to provide more accurate diagnoses for uncommon diseases, such as EMPD, and to aid in clinical decision-making.

Integrative bioinformatics approaches to map key biological markers and therapeutic drugs in Extramammary Paget's disease of the scrotum

Extramammary Paget’s disease (EMPD) is an intra-epidermal adenocarcinoma. Till now, the mechanisms underlying the pathogenesis of scrotal EMPD is poorly known. This present study aims to explore the knowledge of molecular mechanism of scrotal EMPD by identifying the hub genes and candidate drugs using integrated bioinformatics approaches. Firstly, the microarray datasets (GSE117285) were downloaded from the GEO database and then analyzed using GEO2R in order to obtain differentially expressed genes (DEGs). Moreover, hub genes were identified on the basis of their degree of connectivity using Cytohubba plugin of cytoscape tool. Finally, GEPIA and DGIdb were used for the survival analysis and selection of therapeutic candidates, respectively. A total of 786 DEGs were identified, of which 10 genes were considered as hub genes on the basis of the highest degree of connectivity. After the survival analysis of ten hub genes, a total of 5 genes were found to be altered in EMPD patients. Furthermore, 14 drugs of CHEK1, CCNA2, and CDK1 were found to have therapeutic potential against EMPD. This study updates the information and yields a new perspective in the context of understanding the pathogenesis of EMPD. In future, hub genes and candidate drugs might be capable of improving the personalized detection and therapies for EMPD.

Outcomes of mohs microgrpahic resection for cutaneous malignancy involving the scrotum

INTRODUCTION

Squamous cell carcinoma (SCC) and extramammary Paget's Disease (EMPD) of the scrotum are exceedingly rare. Given their propensity for local invasion and treatment with wide local excision, they can be highly morbid conditions. Outcomes of Mohs Micrographic Surgery (MMS) for scrotal cutaneous malignancy is not well described in current literature. We hypothesized that MMS for scrotal cutaneous malignancy would provide equivalent or improved oncologic outcomes while limiting the morbidity associated with wide excision.

MATERIALS/METHODS

This is a retrospective review and analysis of a prospectively maintained database spanning entries from 2005 to 2019. Collected data included general patient characteristics and surgical characteristics reported on a per lesion basis. MMS was performed by our institution's department of dermatology using their standard technique.

RESULTS

Overall, a total of 26 consecutive patients with 28 lesions (SCC or EMPD) were analyzed. Out of our cohort of 15 patients with 16 scrotal SCC lesions, 10 (66%) patients were current or former smokers, 4 (26%) were immunosuppressed, and 2 (13%) had HPV infections. The median preoperative and postoperative size of SCC lesions were 5.7cm [2] and 20.2cm [2] respectively. There was one (6%) oncologic recurrence of SCC of the scrotum and one (6%) local wound complication. Our cohort also included 11 patients with 12 scrotal EMPD lesions. One patient (9%) had an underlying associated malignancy (prostate cancer). The preoperative and postoperative area of lesions were 50.6cm [2] and 96.4cm [2] respectively. One (9%) EMPD lesion had a positive final margin at resection requiring reoperation. After achieving negative surgical margins, no patients in this cohort had an oncologic recurrence. 3 (26%) scrotal EMPD cases had local wound postoperative complications, only one required reoperation.

CONCLUSION

To our knowledge, this is the first case series focused on MMS for both SCC and EMPD with scrotal involvement. Our data suggests that MMS for scrotal cutaneous malignancy may improve oncologic outcomes and may decreases local post-operative reconstructive issues when compared to reported outcomes of treatment with wide local excision. When able, scrotal cutaneous malignancy patients should be referred to urologists at centers with MMS capabilities as it likely will improve their outcomes. The urologist should maintain active involvement with these patients to coordinate this complex and advanced pattern of care.

Response to Pyrotinib in a Chinese Patient with Bone-Metastatic Scrotal Paget's Disease Harboring Triple Uncommon HER2 Mutation: A Case Report

Background

Previous studies have suggested the efficacy of HER2 antibody (trastuzumab) in scrotal Paget’s disease with HER2 amplification or overexpression. However, no report about the effectiveness of HER2 inhibitor (pyrotinib) in those patients has been provided until now.

Case Presentation

We present a case of a Chinese patient with bone-metastatic scrotal Paget’s disease harboring triple uncommon HER2 mutations (R678Q/S310Y/S310F). Due to poor conditions (severe anemia, thrombocytopenia, ECOG PS3), this patient could not tolerate traditional chemotherapy and radiotherapy. Then, the patient participated in a registered clinical trial (NCT03239015) about basket trial for intractable cancer. The patient received pyrotinib (400 mg po qd) and achieved a partial response for 4.0 months.

Conclusion

This is the first report describing a patient with scrotal Paget’s disease harboring triple uncommon HER2 mutation who responds well to pyrotinib. This case suggested that HER2 mutation is also a potential biomarker for treatment in extramammary Paget’s disease and pyrotinib may be an ideal choice for these patients.

A primer on extramammary Paget's disease for the urologist

Extramammary Paget's disease (EMPD) is a rare and lethal intraepithelial malignancy that remains poorly understood. No standardized guidelines or consensus statements exist with regards to the diagnostic evaluation, therapeutic approaches and follow-up management. Complete surgical excision with negative margins has been accepted as the mainstay of treatment for EMPD to decrease the risk of local recurrence and to maximize durable cure. Non-invasive therapies, such as laser therapy, photodynamic therapy, radiotherapy and topical chemotherapy have been utilized, but are best reserved for non-surgical candidates. While the debate on the surgical approach between wide local excision (WLE) and Mohs micrographic surgery (MMS) continues, several studies have demonstrated the ability of WLE to be performed safely and effectively and to yield equally satisfactory outcomes with similar rates of recurrence to MMS. Patients undergoing surgical excision often require complex closures with skin grafting or local flaps to close genital defects. We aim to provide an up-to-date review of the current knowledge of EMPD. In addition to discussing the clinical presentation and prognostic outcomes, we focus and elaborate on the diagnostic approaches and treatment alternatives available. This information may serve as a primer for the urologist who may be called upon to treat this malignancy primarily or to provide wound coverage secondarily.

High Risk of Proximal and Local Neoplasms in 2206 Patients With Anogenital Extramammary Paget's Disease

BACKGROUND

Extramammary Paget's disease is an uncommon intraepidermal adenocarcinoma with poorly defined clinical implications.

OBJECTIVE

The purpose of this research was to estimate the risk of second primary neoplasms in patients with extramammary Paget's disease.

DESIGN

This was a retrospective analysis of the Surveillance, Epidemiology, and End Results Registry (1973-2014).

SETTINGS

The study included population-based cancer registries from the United States.

PATIENTS

Patients who were diagnosed with anogenital Paget's disease were included.

MAIN OUTCOME MEASURES

Risk of second primary development was measured.

RESULTS

We identified 108 patients with anal Paget's disease, 421 patients with male genital (scrotum or penis) Paget's, and 1677 patients with female genital (vagina or vulva) Paget's. Median follow-up time was 5.9 years. The risk of developing colorectal adenocarcinoma was 18.5% for patients with anal Paget's disease. Eighty percent of colorectal adenocarcinoma diagnoses were synchronous (within 2 mo) to anal Paget's diagnoses, whereas metachronous tumors occurred at a median time of 2.4 years. Of patients with anal Paget's disease, 8.3% developed an anal adenocarcinoma or nonsmall cell cancer. In male patients with genital Paget's, the risk of proximal genitourinary malignancy was 9.7%, scrotal or testicular adenocarcinoma was 0.4%, and penile or scrotal squamous carcinoma was 1.7%. In female patients with genital Paget's, the risk of proximal genitourinary malignancy was 3.0%, vaginal or vulvar adenocarcinoma was 1.4%, and vaginal or vulvar squamous neoplasm was 1.0%. Five-year overall survival was 59.7%, 73.5%, and 80.7% in patients with anal, male genital, and female genital Paget's (p < 0.001).

LIMITATIONS

The registry did not record surveillance schedule, provider specialty, or nonprocedural therapies for extramammary Paget's disease.

CONCLUSIONS

In the largest published cohort of patients with extramammary Paget's disease, patients with anal Paget's had a much higher risk of both proximal and local neoplasms as compared with patients with genital Paget's. Patients with anal Paget's also experienced worse survival as compared with those with purely genital Paget's. See Video Abstract at http://links.lww.com/DCR/B20. ALTO RIESGO DE NEOPLASIAS PROXIMALES Y LOCALES EN 2206 PACIENTES CON ENFERMEDAD DE PAGET EXTRAMAMARIA ANOGENITAL:: La enfermedad de Paget extramamaria es un adenocarcinoma intraepidérmico poco frecuente con implicaciones clínicas poco definidas.Estimar el riesgo de segundas neoplasias primarias en pacientes con enfermedad de Paget extramamaria.Análisis retrospectivo del Registro de Vigilancia, Epidemiología y Resultados Finales (1973-2014).Registros de base poblacional en cáncer de los Estados Unidos.Pacientes que fueron diagnosticados con enfermedad de Paget anogenital.Riesgo de desarrollo un cáncer primario adicional.Se identificaron 108 pacientes con Paget anal, 421 pacientes con Paget genital masculino (escroto o pene) y 1677 pacientes con Paget genital femenino (vagina o vulva). Tiempo mediano de seguimiento fue de 5,9 años. El riesgo de desarrollar adenocarcinoma colorrectal fue del 18,5% para los pacientes con Paget anal. El ochenta por ciento de los diagnósticos de adenocarcinoma colorrectal fueron sincrónicos (dentro de los 2 meses) a los diagnósticos de Paget anal, mientras que los tumores metacrónicos ocurrieron en un tiempo promedio de 2,4 años. De los pacientes con Paget anal, el 8.3% desarrolló un adenocarcinoma anal o cáncer de células no pequeñas. En los pacientes masculinos con Paget genital, el riesgo de malignidad genitourinaria proximal fue del 9,7%, el adenocarcinoma escrotal o testicular fue del 0,4% y el carcinoma escamoso del pene o escroto fue del 1,7%. En pacientes femeninas con Paget genital, el riesgo de malignidad genitourinaria proximal fue de 3.0%, el adenocarcinoma vaginal o vulvar fue de 1.4% y la neoplasia escamosa vaginal o vulvar fue de 1.0%. La supervivencia general a cinco años fue del 59.7%, 73.5% y 80.7% en pacientes con anal, genital masculino y genital femenino, respectivamente (p <0.001).El registro no señalo el cronograma de vigilancia, la especialidad del proveedor o las terapias sin procedimiento para la enfermedad de Paget extramamaria.En la cohorte más grande publicada de pacientes con enfermedad de Paget extramamaria, los pacientes con Paget anal demostraron un riesgo mucho mayor de neoplasias proximales y locales en comparación con los pacientes con Paget genital. Los pacientes con Paget anal además demostraron una peor supervivencia en comparación con aquellos con Paget aislada genital. Vea el Resumen del Video en http://links.lww.com/DCR/B20.

Surgical Experience With Genital and Perineal Extramammary Paget's Disease

OBJECTIVE

To describe our surgical experience for the treatment and management of extramammary Paget's disease (EMPD).

METHODS

Our surgical approach involves excising a 2-cm margin of normal appearing skin around the EMPD-suspicious lesion. Prior to excision, the tissue is oriented and demarcated into predefined segments in coordination with a pathologist. Frozen sections are performed when necessary to guide additional excision. Xenograft or wet-to-dry dressings are applied depending on size and location of the wound while the specimen is expeditiously reviewed over the following 24-48 hours. If positive margins remain, further excision of the corresponding skin segment is performed. Delayed complex wound closure +/- split thickness skin grafting is performed once negative margins are confirmed.

RESULTS

Ten EMPD patients were referred to two academic centers between 2014 and 2018. Two patients had positive lymph nodes at diagnosis and underwent palliative surgery and died within 12 and 29 months. The remaining 8 patients underwent a median of 1 surgery (range 0-3) with referring providers before undergoing a median of 3 surgeries (range 2-5) at our institutions to achieve negative surgical margins and wound reconstruction (7 split thickness skin grafts, 1 secondary closure). At mean follow-up of 15 months, 1 patient recurred, required further excision, and remains disease free.

CONCLUSION

EMPD is a rare malignancy with poorly described treatment methodologies. Due to its multifocal distribution and asymmetric spread, obtaining negative margins can be challenging. Our systematic approach to obtaining wide margins and documenting excised skin has enabled us to achieve negative margins for this challenging malignancy.

Imaging Features of Extramammary Paget Disease of the Scrotum: A Case Report

Extramammary Paget disease (EMPD) is a rare intraepithelial malignancy originating in areas rich in apocrine glands, such as the vulva, perineum, perianal area, scrotum, and penis. A few reports of EMPD involving the scrotum have been described in the literature. However, only few reports have described imaging features observed in patients presenting with EMPD. We report EMPD in a patient showing scrotal involvement, focusing on imaging features, particularly those determined ultrasonographically.

Survival analysis of patients with invasive extramammary Paget disease: implications of anatomic sites

Background

Extramammary Paget disease (EMPD) is a rare malignant dermatosis with poorly defined outcomes. We investigated clinical characteristics of invasive EMPD at different anatomic sites and by subject demographics to determine prognostic factors for overall survival (OS).

Methods

All patient data were collected from the Surveillance, Epidemiology, and End Results (SEER) program, 1973–2013, of the U.S. National Cancer Institute. Patients with invasive EMPD of skin, vulva/labia, vagina, scrotum/penis, or other sites were included. After excluding patients with unknown radiation status, data of 2001 patients were analyzed. Primary endpoint was EMPD mortality by anatomic sites. Independent variables included patients’ demographic data, concurrent malignancy (ie, non-EMPD related cancers), tumor size, distant metastasis, and surgery and/or radiation or not.

Results

Multivariate regression analysis showed that mortality was significantly higher in patients with vaginal EMPD than in patients with vulvar/labial EMPD (adjusted hazard ratio [aHR] = 3.26, p < 0.001). Patients with distant metastasis had higher mortality than those without (aHR = 3.36, p < 0.001). Patients who received surgery had significantly lower mortality than those who did not receive surgery (aHR = 0.77, p = 0.030), and those treated with radiation had significantly higher mortality than those who did not receive radiation (aHR = 1.60, p = 0.002). Older age was associated with significantly increased mortality (aHR = 1.09, p < 0.001), and mortality was significantly higher in males than in females (aHR = 1.42, p = 0.008).

Conclusions

In conclusion, among EMPD patients, mortality is higher in patients with vaginal EMPD than in those with vulvar/labial EMPD and higher in those who are older, those with concurrent malignancy or distant metastasis. Mortality is also higher in males than in females. Surgery is a protective factor and radiation is a risk factor for OS. Greater understanding of EMPD clinical characteristics, and considering EMPD in differential diagnosis of chronic genital and perianal dermatoses may provide support for early EMPD diagnosis and definitive surgical treatment.

Patients' Experiences With Extramammary Paget Disease: An Online Pilot Study Querying a Patient Support Group

OBJECTIVE

To illustrate the heterogeneous care delivered to patients with extramammary Paget disease (EMPD), a rare and lethal malignancy with poorly described treatment methodologies, by characterizing the clinical and pathologic characteristics of an international patient support group.

MATERIALS AND METHODS

Institutional review board approval was obtained to develop and distribute a nonvalidated survey to patients from an international, online EMPD support group. The survey was developed to capture patient clinical and pathologic details and was distributed between January 2017 and February 2017.

RESULTS

Forty-two patients completed the survey. At a mean age of 64 years, patients most commonly developed rash, pruritus, or erythema in the genital and perianal regions. Patients presented to their primary care physician, gynecologist, or dermatologist and were initially treated with topical agents for benign diagnoses. After failing conservative treatments, patients underwent biopsy by a dermatologist or gynecologist and were diagnosed with EMPD on average 21 months after the onset of symptoms. Wide local and Mohs excisions were the most frequently administered treatments with positive margins reported in 43% of patients. Fewer patients underwent noninvasive treatment with imiquimod cream and radiation. In total, 29% of patients developed regional recurrence and distant disease. There was wide variation regarding medical specialties involved, diagnostic evaluation, treatment, and clinical follow-up.

CONCLUSION

This study provides a novel view of the varied clinical and pathologic details from patients treated across varying institutions and medical specialties. This study will hopefully educate providers of the overall disease process of EMPD and encourage the development of standardized treatment recommendations.

Surgical Management of Primary Scrotal Cancer

Primary scrotal cancer is a rare urologic malignancy with various histologic subtypes. Management and outcomes are not designed optimally. Surgical excision is the recommended treatment for localized scrotal cancer, with assessment of the margins for disease. Closure of the defect can be performed with primary closure, skin grafts, flaps, or by secondary intention. Analysis of outcomes suggests that high-risk scrotal cancer may have a worse prognosis compared with penile cancer, and low-risk scrotal cancer may have a comparable prognosis. Understanding techniques for management and survival outcomes can help the urologist determine the appropriate course of treatment and improve patient care.

Extramammary Paget Disease of External Genitalia: Surgical Excision and Follow-up Experiences With 19 Patients

PURPOSE

There are only a few reports of extramammary Paget disease (EMPD) of the external genitalia because it is a rare malignancy. We investigated patients with EMPD of the penis and scrotum and report the outcome of surgical management.

MATERIALS AND METHODS

From 2000 to 2012, a total of 19 patients diagnosed as having penile and scrotal EMPD underwent wide local excision with or without intraoperative frozen biopsy or preoperative mapping biopsy. The medical charts of these patients were reviewed and analyzed retrospectively. Mean follow-up was 22.5 months (range, 1 to 60 months).

RESULTS

The mean age of the patients was 68 years (range, 57 to 82 years). In some patients, the lesions were misdiagnosed as either eczema or some other benign skin lesion at outside institutions, with a mean delay in diagnosis of 43.5 months (range, 1 to 198 months). Intraoperative frozen biopsy or preoperative mapping biopsy was performed in 18 patients. The resection margin was negative in 9 patients (47.4%) and positive in 10 patients (57.6%). Intraepithelial EMPD without dermis invasion was observed in 5 patients (26.3%), whereas diseases with dermis invasion were noted in 14 patients (73.7%). During the follow-up period, recurrences occurred in four patients, and two patients with dermis invasion and recurrence died from the disease.

CONCLUSIONS

Diagnosis of EMPD should not be delayed to allow for prompt management. Our findings suggest that intraoperative frozen biopsy or preoperative mapping biopsy cannot guarantee negative margins on final pathology. However, preoperative mapping biopsy and wide local excision with intraoperative frozen biopsy demonstrates good prognosis of EMPD, especially in those cases without dermal invasion.

Non-squamous cell carcinoma of the penis: single-center, 15-year experience

PURPOSE

Penile cancer is a rare malignancy with less than 5 % being non-squamous cell carcinoma (SCC) primary malignancies. We report our 15-year experience of treating non-SCC penile cancer at a tertiary care cancer center.

METHODS

We identified 12 patients with non-SCC of the penis from 1996 to 2012. Demographic and clinical data were abstracted, including histological type, surgical treatment, adjuvant therapy, and clinical course.

RESULTS

Five patients had sarcoma (three leiomyosarcoma, one spindle cell carcinoma, and one epithelioid sarcoma), four had melanoma, two had extramammary Paget's disease (EPD), and one had sebaceous carcinoma. Median follow-up was 37.5 months (mean 45.8 months). Tumor staging for melanoma was pT1aN3, pTisNx, pTxNxM1b, and pT3bN0. Patients with melanoma were treated with penile sparing surgery; two are alive without disease, one is alive with disease, and one patient with metastasis at presentation died of disease at 16.3 months. The patients with sarcoma and deep-seated or node-positive disease died of disease at a mean of 49.7 months. Two patients with EPD were treated with wide local excision of the lesions and were both pT1Nx. The remaining patient had sebaceous carcinoma treated with excisional biopsy and was free of disease at 32.0 months.

CONCLUSIONS

Non-SCC of the penis is primarily treated surgically, with the goal of complete excision at the time of treatment. The utilization of lymphadenectomy is less clear in these malignancies, but aggressive approaches should be considered in appropriate patients. Tumor stage and nodal status are important in determining patient outcomes.

Management of penoscrotal extramammary Paget disease: case series and review of the literature

Extramammary Paget disease (empd) is a rare, slow-growing neoplasm, considered to be an adenocarcinoma of the apocrine glands. In men, the penoscrotal region is the most commonly affected area. The disease can present as carcinoma in situ or as invasive disease that can subsequently metastasize to lymph nodes and distant sites. Because of the rarity of empd, the medical literature available to guide management of the disease is limited, particularly in patients with metastases. In addition, metastatic disease may pose a diagnostic challenge, because invasive cancer of the genitourinary or gastrointestinal tract can occur in association with empd. In the present case series, we describe our experience in treating penoscrotal empd with multimodality therapy, and we review the existing literature concerning its diagnosis and management.

Penoscrotal extramammary Paget's disease: surgical techniques and follow-up experiences with thirty patients

To report the surgical management, complications and prognosis of patients with penoscrotal extramammary Paget's disease (EMPD) at different clinical stages. Between 2003 and 2008, a total of 30 male patients with penoscrotal EMPD were enrolled and evaluated. All enrolled subjects received frozen biopsy-guided local wide resection and immediate reconstruction. Patients were followed every 3 months postoperatively. Among the 30 patients who accepted and underwent frozen biopsy-guided local wide resection treatment and reconstruction, two (6.7%) cases exhibited positive margins, verified by pathological examination, and underwent re-excision after surgery. The technique of primary closure or an adjacent flap was used in 10 (33.3%) cases, split-thickness skin grafts were used in 15 (50%), and an anterolateral thigh perforator flap was used in five cases (16.7%). The postoperative complications were acceptable. The mean follow-up time was 64.9 ± 29.6 months. Of all 30 cases, 22 patients (73.3%) survived with no evidence of recurrence, four patients (13.3%) exhibited local recurrence, two patients (6.7%) exhibited both local recurrence and distant metastasis and the remaining two patients (6.7%) exhibited distant metastasis. Five patients died from metastasis or cachexia. Current surgical techniques, including primary closure, adjacent flaps, split-thickness skin flaps and anterolateral thigh perforator flaps are able to reconstruct all types of defects with acceptable complications. Some patients with negative margins went on to exhibit local recurrence, potentially due to adnexal carcinoma or internal malignancy.

Extramammary paget disease: minimal surgical therapy

Background

Extramammary Paget disease (EMPD) is an uncommon malignant neoplasm affecting apocrine gland-bearing skin which usually occurs in the anogenital area of patients older than 50 years. Although Mohs micrographic surgery (MMS) is recommended for the treatment of EMPD, wide local excision has also been performed by many other surgeons including dermatosurgeons. However, the extent of an adequate resection margin is still under debate.

Objective

The efficacy of minimal surgical therapy consisting of a wide excision combined with preoperative multiple scouting biopsies and postoperative topical imiquimod was investigated for the treatment of EMPD in Korean patients.

Methods

Between 2006 and 2012, 10 patients with primary EMPD were treated with wide surgical excision, with a surgical margin of less than 2.5 cm. Multiple preoperative scouting biopsies and postoperative topical imiquimod were also performed to delineate the lesional boundaries and to reduce the recurrence rate.

Results

During the 6-year follow-up period, complications and recurrences were not observed.

Conclusion

Minimal surgical therapy may be an effective alternative when MMS is unavailable.

Frozen section-guided wide local excision in the treatment of recurrent scrotal extramammary Paget's disease

BACKGROUND

A wide excision is generally accepted to be the standard modality of treatment for scrotal extramammary Paget's disease (EMPD). The disease has a recurrence rate of about 10% and a second wide excision is still the chief treatment. We investigated the therapeutic methods for recurrent scrotal EMPD.

METHODS

We retrospectively studied the therapeutic methods and prognosis of 26 cases of recurrent EMPD. Seventy-two cases of primary scrotal EMPD served as controls. All of the cases were treated with frozen section-guided wide local excision.

RESULTS

There was no significant difference in the follow-up period of the recurrent cases before recurrence (p=0.3228), local recurrence rate (p=0.449), and total recurrence rate (p=0.100) between the two groups, respectively. There is a favorable trend of worse mortality rate in the recurrence group (p=0.056). The rate of inguinal lymph node metastasis was higher in the group with recurrent disease than in the control group (p=0.017).

CONCLUSION

Wide excision of the lesion still appears to be the most effective modality of treatment for recurrent scrotal Paget's disease. Inguinal lymphadenectomy or sentinel lymph node biopsy should be offered to patients with primary lesions.

Extramammary Paget's disease of the scrotum associated with hepatocellular carcinoma

Extramammary Paget's disease (EMPD) is a rare cutaneous carcinoma of epidermal origin. The diagnosis is frequently delayed, and the disease tends to be associated with an underlying adnexal or internal malignancy. There have been several reports of EMPD associated with carcinoma of the bladder, prostate, kidney, and colon. The association of hepatocellular carcinoma (HCC) with EMPD appears to be exceedingly rare; to our knowledge, it has been reported only once in the English literature. Herein, we report an unusual case of EMPD of the scrotum associated with HCC. EMPD was diagnosed 1 year after the appearance of an erythematous plaque, and HCC was noted 19 months after the diagnosis of EMPD. From our experience and literature review, in patients with nonspecific skin lesions that are unresponsive to conventional treatment, EMPD should be considered and skin biopsy performed. Long-term follow-up is needed to watch for the appearance of adnexal carcinoma or internal malignancy.

Intraoperative frozen biopsy in wide surgical excision of Paget's disease of the scrotum

OBJECTIVE

To determine if there is an advantage to performing intraoperative frozen biopsy to ascertain clear surgical margins in wide surgical excision for Paget's disease of the scrotum.

PATIENTS AND METHODS

We retrospectively reviewed surgical and pathological records of 133 patients with Paget's disease of the scrotum who were treated with wide surgical excision from 1993 to 2008.

RESULTS

A total of 51 cases had intraoperative frozen biopsy of the surgical margins. Of these, 17 had margins positive for Paget's disease, thus a wider area was excised and the sample examined again. In all instances, result of the final pathologic examinations after surgery indicated margins were negative. In the 82 cases that did not have intraoperative frozen biopsy, 31 were found to have tumor cells at the surgical margin by pathologic examination. Of these 31 patients, 24 had a second surgery after which surgical margins were clear. The other 7 patients refused a second surgery. Of the patients who refused a second surgery, 5 had recurrent disease.

CONCLUSION

Determination of the extent of lesions and margins for surgical excision by visualization is inadequate. The routine use of intraoperative frozen biopsy reduces the incidence of positive surgical margins in surgical excision of Paget's disease of the scrotum.

Benign Diseases and Neoplasms of the Penis

This article provides comprehensive review of benign diseases and neoplastic conditions of the penis. It describes and provides representative images of clinical, key pathologic features and ancillary techniques to aid in differential diagnoses. It examines these diseases from the epidemiologic standpoint, looks at environmental and genetic factors, and outlines the new histologic entities for penile neoplasms with distinct outcomes and clinical behavior that have been proposed in recent years.

Extramammary Paget's disease of the penis: a case report and review of the literature

Introduction

Extramammary Paget's disease is a rare cutaneous, slow growing, intraepithelial adenocarcinoma developing in the apocrine gland-bearing areas. Isolated Paget's disease of the penis is extremely rare.

Case presentation

We describe the case of an 87-year-old Caucasian male who presented with a non-healing erythematous plaque on the shaft of the penis previously misdiagnosed as Bowen's disease. The diagnosis was made histologically on the excised specimen and was supported by immunohistochemical staining.

Conclusion

Extramammary Paget's disease is a rare disease which can mimic various types of dermatosis. A high index of suspicion is required, combined with biopsy and immunohistochemical staining in order to make the correct diagnosis. Long-term follow-up is mandatory in these patients in order to identify and treat any subsequent recurrence or concurrent malignancy.