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Background: Scrotal and retroperitoneal lymphangioma (SRL) in children is relatively rare and its clinical symptoms are usually difficult to distinguish from other conditions such as hydrocele and incarcerated inguinal oblique hernia. This study aimed to explore the clinical diagnosis and treatment of abdominal scrotal lymphangioma in children, and thus, to increase our understandings of this disease in clinical practice., Method: This study enrolled nine boys, aged 1-10, who were admitted to Shanghai Children's Hospital from January 2019 to December 2020 and who were finally confirmed with lymphangioma in the inguinal area. The clinical manifestations, diagnosis, and treatment of these children were analyzed retrospectively. The length of diagnostic process ranged from 3 weeks to 20 months. We also reviewed other cases of initially misdiagnosed cases of SRL in English publications from 2000 to 2022., Results: The nine cases were misdiagnosed as hydrocele, hematoma, or inguinal hernia. Three patients received intracystic injection of bleomycin, three underwent laparoscopic mass resection, and three underwent resection of the inguinal lymphangioma under direct vision. Postoperative pathological analysis of the surgical specimens confirmed the diagnosis of benign cystic lesions and lymphangioma. Meanwhile, among the 14 cases of SRL in literature review, eight were misdiagnosed. Six were initially diagnosed as hydrocele, one as inguinal oblique hernia, and one as testicular tumor, all of which underwent ultrasonography scans. All cases were confirmed as lymphangioma after pathological examination., Conclusion: The non-specific clinical manifestations may contribute to the misdiagnosis of scrotal masses in children. A detailed and accurate medical history, careful physical examination, and imaging findings are important factors contributing to the preoperative differential diagnosis of scrotal lumps in children, but the final diagnosis is based on pathological examination., (© 2023. The Author(s).)

Objective: Primary mitral valve (MV) tumor is a rare lesion, and to date, there have been few larger surgical series of MV tumors. We retrospectively analyzed 11 cases of primary MV tumors regarding clinical and pathological features, surgical procedure and long-term outcomes., Methods: From November 1983 to December 2008, we operated on 11 patients (age 36.3 ± 17.7 years, weight 55.4 ± 11.2 kg) with primary MV tumors. Symptoms were cardiac in 8 cases (72.7%) and neurologic in 3 (26.3%). Surgical procedures included en bloc excision and MV repair in 8 cases and tumor resection and MV replacement in 3. No radiotherapy or chemotherapy was given to patients with malignant tumors., Results: Pathological diagnosis was papillary fibroelastoma in 3 cases, myxoma in 3, lymphangioma in 1, lipoma in 1, hemangioma in 1 and sarcoma in 2. No early deaths or complications occurred. Late death occurred in 2 patients with sarcoma 1 year postoperatively. At the latest follow-up, with a maximum of 25 years (mean 10.6 ± 8.8), the 9 survivors were in New York Heart Association functional class I with normal MV function and no echocardiographic evidence of local recurrence., Conclusions: The majority of primary MV tumors are benign. They can cause cardiac or neurologic symptoms and should be excised as soon as a diagnosis is made. For benign tumors, valve-sparing resection and valve repair are often possible with excellent long-term outcomes. The prognosis of malignant MV tumors is poor., (Copyright © 2011 S. Karger AG, Basel.)