Malignant upgrade rate and associated clinicopathologic predictors for concordant intraductal papilloma without atypia: A systematic review and meta-analysis.

Previously reported upgrade rates for benign breast intraductal papilloma (IDP) are widely variable. However, many previous studies have failed to consider radiologic-pathologic discordance of lesions. This review aims to synthesize malignant upgrade data for benign, concordant IDP at surgical excision. Thirteen studies were included in our meta-analysis. The pooled estimate for percentage underestimation of carcinoma was 1.4% (95% CI: 0.8%-2.0%). We conclude that these lesions can be safely managed by active surveillance.

Treatment Strategy for Breast Benign Intraductal Papilloma: A Meta-Analysis.

Currently, the optimal treatment approach for breast benign intraductal papilloma (IDP) diagnosed via biopsy remains uncertain. There is ongoing debate regarding the feasibility of clinical follow-up and the criteria for selective surgical excision. This study aims to conduct a meta-analysis to determine the rate of upgrade from breast benign IDP and identify predictive factors associated with the conversion of benign IDP to high-risk lesions or carcinoma, which could guide healthcare practitioners in selecting the appropriate clinical treatment strategy. We conducted a comprehensive search across multiple databases (PubMed, Web Of Science, Cochrane Library, and Embase) for studies published between 2012 and 2023 that evaluated upgrade rates and predictive factors of breast benign IDP diagnosed via biopsy. In addition, we included studies that reported on the clinical follow-up of patients with breast benign IDP. In total, 32 studies comprising 7371 cases of biopsy-diagnosed breast benign IDP were included. Among these cases, 720 demonstrated an upgrade to high-risk lesions or carcinoma, resulting in an upgrade rate of 6.94% [95% confidence interval (CI): 3.0-8.0%]. A subgroup of 1713 patients was clinically followed up, demonstrating an average follow-up duration of 30.95 months. Among them, 26 cases experienced an upgrade to high-risk lesions or carcinoma, yielding an upgrade rate of 1.51% (95% CI 0.00-2.00). Furthermore, we identified nine predictive factors associated with the upgrading of breast benign IDP, which included age at diagnosis, personal history of breast cancer, family history of breast cancer, multiple IDPs, lesion size ≥ 10 mm, palpable mass, calcification, and the presence of mass and asymmetry in mammographic findings. Although the conversion rate of breast benign IDP to high-risk lesions or carcinoma is relatively low, timely identification of predictive factors associated with benign IDP upgrades may help selecting the optimal clinical treatment strategy, such as surgery for patients with benign IDP presenting one or more predictive factors, while clinical follow-up for those without specific risk factors.

Challenging diagnosis of male intraductal papilloma masquerading as eccrine hidradenoma in the breast: Case report.

RATIONALE: This article presents a challenging case involving an elderly male patient with a misdiagnosed intraductal mammary papilloma initially identified as a sweat adenoma through ultrasound imaging. The study aims to explore the histopathology, clinical presentations, and sonographic features of both conditions, emphasizing the contributing factors to the diagnostic misstep. PATIENT CONCERNS: A 61-year-old male reported a persistent left breast mass, along with pain and swelling, spanning a 6-month duration. DIAGNOSES: Ultrasound examination indicated a deep, square, mixed-echo mass in the left nipple, initially suggestive of a sweat adenoma. However, subsequent pathological analysis following resection under general anesthesia confirmed an intraductal papilloma. INTERVENTION: The patient underwent surgical resection of the left breast mass under general anesthesia. OUTCOME: Post-surgery, the patient exhibited satisfactory recovery; however, regrettably, he was lost to follow-up. LESSONS: This study underscores the challenge in differentiating between clear cell sweat adenoma and male intraductal mammary papilloma solely based on ultrasonic characteristics. It emphasizes the susceptibility of ultrasound-based diagnoses to misinterpretation, highlighting the critical need for a comprehensive pathological examination to establish a definitive diagnosis.

Surgical excision versus clinical follow-up: Outcomes of benign intraductal papillomas diagnosed on core needle biopsy.

OBJECTIVE: To compare outcomes between benign intraductal papillomas diagnosed on core need biopsy that were excised (BIP-E) versus those that were followed-up (BIP-F) at our institution. METHODS: Patients were identified by an electronic data base search from January 2010 to October 2016. After exclusions, clinical, radiological and histologic variables were evaluated and biopsy and excision slides reviewed. RESULTS: 110 BIP from 104 females were analyzed. 84 BIP were excised and 26 BIP were followed up (mean 43.3 months, range 7-93 months).11 patients in BIP-E group had atypia on excision. There were no statistically significant differences between BIP-E with atypia and BIP-E without, except for clinical presentation with pain/discomfort (p â€‹= â€‹0.015) in the former. There were no true upgrades to malignancy in both groups on follow up. One patient from each group developed a new breast cancer distant from IP site after nearly 4 years of uneventful follow-up. CONCLUSION: Clinical follow up is an oncologically safe alternative for radiologically concordant BIP. Excision may be considered if a diagnosis of atypia would impact surveillence and chemoprevention recommendations.

Neoplasia papilar intraductal de la vía biliar: un reto diagnóstico para un correcto tratamiento / Intraductal papillary neoplasm of the bile duct: A diagnostic challenge for optimal treatment

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Papiloma intraductal metacrónico en un niño: Caso clínico / Intraductal metachronic papilloma: Clinical case

Introducción. La asociación de telorragia y ginecomastia nos orienta al diagnóstico de papiloma intraductal. Este tumor benigno es muy infrecuente en la edad pediátrica. Caso clínico. Niño de 2 años que presentó ginecomastia y telorragia en la mama izquierda. Se realizó mastectomia. A los 4 años, presentó el mismo cuadro en la mama derecha, que requirió también mastectomia derecha, con buena evolución posquirúrgica en ambas oportunidades. La anatomía patológica informó papiloma intraductal sin signos de malignidad ni atipia. Conclusión. El papiloma intraductal raramente afecta a niños; hay 15 casos reportados. La ecografía es el método de diagnóstico más empleado. En los pacientes masculinos, la mastectomia es recomendada para asegurar un diagnóstico y tratamiento definitivo.

Introduction. The association of gynecomastia and bloody nipple discharge (thelorragia) leads us to the diagnosis of intraductal papilloma. This is a very rare benign tumor in children. Clinical case. A 2 year old male child was referred due to gynecomastia and bloody nipple discharge of the left breast. A mastectomy was performed. At the age of 4 he returned with identical symptoms but in the right breast. A right mastectomy was also required. An excellent clinical outcome was present in the follow up. The pathology reported intraductal papilloma with no evidence of malignancy or atypia. Conclusion. The intraductal papilloma rarely affects children, there are 15 reported cases. Ultrasound is the most useful diagnostic method. In male patients, mastectomy is recommended to ensure definitive diagnosis and treatment.

Enucleación laparoscópica de una neoplasia intraductal papilar mucinosa de ramos periféricos localizada en la cabeza del páncreas. Una nueva alternativa / Laparoscopic enucleation of a peripheral branch intraductal papillary mucinous neoplasm situated in the pancreatic head. A new alternative

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Papilomatosis juvenil: revisión a propósito de 2 casos / Juvenile papillomatosis: Review of 2 cases

La papilomatosis juvenil (PJ) es una lesión mamaria benigna, poco frecuente y de carácter proliferativo. Se caracteriza por ser una proliferación exofítica multifocal de varios papilomas dentro de un segmento mamario. Generalmente afecta a mujeres jóvenes de menos de 30 años de edad. Suele presentarse como una tumoración mamaria indolora, simulando un fibroadenoma. La biopsia percutánea guiada por ecografía permitirá detectar la naturaleza de la lesión y descartar patología maligna asociada. Se describe una serie de 2 casos con similar presentación clínica pero difiriendo en el manejo una vez analizados los antecedentes familiares y las circunstancias individuales de cada uno de ellos

Juvenile papillomatosis (JP) is a rare breast lesion of a proliferative and benign nature. It is noted for being a multifocal exophytic proliferation of several papillomas within a breast segment. It usually affects young women under 30 years of age, and usually presents as a painless breast mass, simulating a fibrous adenoma. The ultrasound guided percutaneous biopsy will enable the diagnosis to be confirmed, as well as to rule out any associated malignant disease. A description is presented on series of 2 cases with similar clinical presentation, but differing in management after analysing the family history and the individual circumstances of each of them

Papiloma intraductal en mama ectópica localizada en vulva / Intraductal papilloma in an ectopic breast localized in the vulva

Sobre la cresta láctea, inicio de la organogénesis de la mama, pueden producirse alteraciones del desarrollo. Destaca por su frecuencia la polimastia, caracterizada por el aumento del número de mamas morfológicamente completas o tan sólo de tejido glandular. Aunque su localización más frecuente es la axila pueden aparecer en cualquier sitio de la "cresta láctea" (línea axila- vulva); están expuestas a influjos hormonales y sobre ellas puede asentar cualquier tipo de patología mamaria. Presentamos el caso clínico de una paciente de 33 años, con antecedentes familiares de cáncer de mama, que presentaba un nódulo vulvar sintomático, cuyo estudio histológico reveló que se trataba de un papiloma intraductal asentado, probablemente, sobre tejido mamario. Sólo por motivos estéticos o ante la existencia de síntomas, sobretodo si se asocian a antecedentes familiares de cáncer de mama, está indicada la extirpación quirúrgica del tejido mamario accesorio, ectópico o aberrante. (AU)