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Open research questions in Testicular diseases and treatments

92 unresolved questions extracted from the limitations and future-work sections of 398 Testicular diseases and treatments papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • The aggressive clinical course and poor prognosis of HAL. The lack of standardized treatment strategy for advanced HAL. The need for further studies to understand the clinicopathologic and molecular characteristics of HAL.

    Hepatoid adenocarcinoma of the lung with normal serum alpha-fetoprotein managed with thoracic radiotherapy followed by tislelizumab plus lenvatinib: a case report and systematic review · 2026 · DOI

  • Adverse event reporting was often unclear or absent. It was often unclear whether all eligible patients were included consecutively and completely in case series. The study had a small sample size.

    Hepatoid adenocarcinoma of the lung with normal serum alpha-fetoprotein managed with thoracic radiotherapy followed by tislelizumab plus lenvatinib: a case report and systematic review · 2026 · DOI

  • the study was not designed to evaluate the impact of specific chemotherapy regimens, - the results should be interpreted with caution due to the limited number of deaths in some subtypes, - the events-per-variable ratio may not have reached the generally recommended threshold

    Prognosis and risk factors by histologic type of malignant ovarian germ cell tumors in Japan: a JSOG gynecologic tumor registry-based study · 2026 · DOI

  • evaluation of the impact of specific chemotherapy regimens on OS in MOGCT patients, - investigation of the effects of racial variation in histological distribution on survival outcomes, - analysis of the relationship between tumor stage and histological classification on prognosis

    Prognosis and risk factors by histologic type of malignant ovarian germ cell tumors in Japan: a JSOG gynecologic tumor registry-based study · 2026 · DOI

  • the low incidence of hepatoid carcinoma of the ovary has limited prior research to sporadic case reports - there is a lack of standardized clinical guidelines or expert consensus for the management of hepatoid carcinoma of the ovary - the disease has not been included in the current standardized classification system for ovarian tumors

    Hepatoid carcinoma of the ovary: a literature review · 2026 · DOI

  • Oxidative stress and inflammation are central mediators of testicular ischemia-reperfusion injury. The condition requires early diagnosis and treatment to prevent testicular loss and preserve future fertility. Clinical translation of preclinical studies is limited by heterogeneity in dosing, timing, and outcome measures.

    Possible role of vitamins C and E co-administration in the prevention of testicular ischemia–reperfusion injury following surgical repair of torsion of the testis · 2025 · DOI

  • There is limited evidence that addresses the additive or synergistic protection of co-administration of vitamins C and E after detorsion. Most evidence derives from animal and in vitro models, and heterogeneity in dosing, timing, and outcome measures limits direct clinical translation.

    Possible role of vitamins C and E co-administration in the prevention of testicular ischemia–reperfusion injury following surgical repair of torsion of the testis · 2025 · DOI

  • The diagnosis of testicular microlithiasis can be challenging due to the lack of standardized surveillance protocols. The condition is often identified incidentally, and the relationships between testicular microlithiasis and testicular malignancy and infertility are poorly defined. The management of pediatric testicular microlithiasis is controversial, with some scholars advocating for a minimalistic approach and others recommending more intensive surveillance.

    Management of pediatric testicular microlithiasis · 2025 · DOI

  • diagnostic challenges, - lack of standardized surveillance protocols, - conflicting evidence of any significant risk in the pre-pubertal population, - limited understanding of the pathophysiology of TM

    Management of pediatric testicular microlithiasis · 2025 · DOI

  • The exact prevalence of testicular microlithiasis in children remains uncertain and continues to be a topic of debate.

    Pediatric testicular microlithiasis: a review of epidemiology, risk associations and management · 2026 · DOI

  • Interpretation is limited by the single-patient design, short follow-up, absence of lesion-specific sequencing and serial hepatitis B virus DNA data, and a nonstandardized maintenance strategy.

    Case Report: Conversion therapy with chemotherapy, antiangiogenic therapy, and immunotherapy for locally advanced synchronous gastric hepatoid adenocarcinoma and poorly differentiated adenocarcinoma · 2026 · DOI

  • The nationwide incidence of testicular torsion in Japan has not been previously reported.

    A nationwide epidemiological study of testicular torsion: Analysis of the Japanese National Database · 2024 · DOI

  • The aggressive biology of platinum-resistant primary mediastinal yolk sac tumors. The limited efficacy of PD-1 blockade in platinum-resistant germ cell malignancies. The catastrophic neurologic consequences of malignant spinal cord compression during rapid metastatic progression.

    Pembrolizumab Failure in an Aggressive, Platinum-Resistant Primary Mediastinal Yolk Sac Tumor With Rapid Metastatic Dissemination, Spinal Cord Compression, and a Fatal Outcome · 2026 · DOI

  • The role of immune checkpoint inhibitors in platinum-resistant primary mediastinal yolk sac tumors is poorly defined. There is a need for more effective salvage strategies in this high-risk population.

    Pembrolizumab Failure in an Aggressive, Platinum-Resistant Primary Mediastinal Yolk Sac Tumor With Rapid Metastatic Dissemination, Spinal Cord Compression, and a Fatal Outcome · 2026 · DOI

  • Diagnosing mixed GCTs in postmenopausal women can be challenging due to their rarity. Treatment options for mixed GCTs are limited, and there is a lack of information on effective treatment approaches.

    Mixed Germ Cell Tumour in a 58-Year-Old Post-menopausal Woman: A Case Report · 2026 · DOI

  • Further studies are needed to validate the long-term clinical outcomes of using surgical debulking and adjuvant targeted therapy with surufatinib in managing metastatic G1 TNET. Research should focus on developing more effective therapeutic strategies for TNET. The development of more accurate diagnostic tools and techniques for TNET is necessary.

    Primary testicular neuroendocrine tumor with retroperitoneal lymph nodes metastasis: a case report · 2026 · DOI

  • The limited responsiveness of TNET to conventional adjuvant treatments. The lack of effective therapeutic strategies for managing metastatic G1 TNET. The need for a multimodal diagnostic approach to accurately diagnose TNET.

    Primary testicular neuroendocrine tumor with retroperitoneal lymph nodes metastasis: a case report · 2026 · DOI

  • The rarity of the condition makes it challenging to diagnose and treat. Imaging limitations in rare anatomical settings. The need for careful clinical judgment in the evaluation of scrotal masses.

    Intratesticular Leiomyoma Associated with Polyorchidism: A Rare Case Report · 2026 · DOI

  • Continued reporting of cases and research efforts are essential to expand the evidence base. Development of therapeutic strategies is necessary to improve survival outcomes for affected patients.

    Ovarian and fallopian tube yolk sac tumor in postmenopausal patient: Case report and review of literature · 2026 · DOI

  • The occurrence of ovarian yolk sac tumors in postmenopausal women is exceedingly rare. There is a lack of reported cases of ovarian yolk sac tumors involving the contralateral fallopian tube.

    Ovarian and fallopian tube yolk sac tumor in postmenopausal patient: Case report and review of literature · 2026 · DOI

  • There is a need for studies evaluating the safety and efficacy of laparoscopic retroperitoneal lymph node dissection. There is a lack of large series of patients from tertiary referral centers.

    Laparoscopic retroperitoneal lymph node dissection in testicular cancer: feasibility and safety at a tertiary center · 2026 · DOI

  • Diagnostic challenges due to clinical similarity to more common conditions. Surgical challenges due to the size and extent of the lipoma. The need for a multidisciplinary approach for optimal management.

    Largest pediatric scrotal lipoma with perineal extension: a rare case expanding the anatomic spectrum and diagnostic pitfalls · 2026 · DOI

  • There is a lack of documentation of giant pediatric scrotal lipomas with perineal extension. There is a need for awareness of rare pediatric conditions to avoid misdiagnosis.

    Largest pediatric scrotal lipoma with perineal extension: a rare case expanding the anatomic spectrum and diagnostic pitfalls · 2026 · DOI

  • There is a gap between the recommended age for orchiopexy and the actual age at which surgery is performed. The study aims to characterize the extent of delayed orchiopexy in relation to contemporary guideline recommendations.

    A 10-Year Retrospective Single-Center Study: Are Children With Cryptorchidism Operated On at the Recommended Age? · 2026 · DOI

  • The study identifies a gap in the current understanding of the effectiveness of manual detorsion in acute testicular torsion. The study notes that the optimal analgesic strategy for manual detorsion has not been established.

    Manual detorsion and orchiectomy risk in testicular torsion: an updated systematic review and attempt-based meta-analysis · 2026 · DOI

Most-cited papers in Testicular diseases and treatments

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92 open questions have been extracted from the limitations and future-work passages of 398 Testicular diseases and treatments papers in our 4.5M-paper local library. Each one below links back to the study that raised it, so you can read the original claim in context.

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