An unusual case of primary intrascrotal lipoma

Giant bilateral scrotal lipoma with abnormal somatic fat distribution: A case report

BACKGROUND

Scrotal lipoma is exceedingly rare, so its origin is still unknown. Injury is suggested as a potential factor, but the cause remains unclear. It is difficult to determine the origin of these tumours. Previous studies have suggested that these tumours may be congenital or that they originate from small fatty particles around the cord. Other studies have suggested that these tumours originate from testicles or the tunica.

CASE SUMMARY

A 66-years elderly male with giant scrotal mass. B-ultrasound, computed tomography and magnetic resonance imaging examinations are typical lipoma-like changes, which were confirmed by postoperative pathological analysis. Abnormal somatic fat distribution was confirmed by images. no recurrence after follow-up for 2 years. Previously published English-language literature was reviewed, and a history of inguinal or pelvic surgery was reported in 6 studies (total 21 cases). To our knowledge, this is the heaviest bilateral scrotal lipoma in the English-language literature, and it has the longest postoperative follow-up time. More importantly, the origin of these tumours is reviewed and discussed.

CONCLUSION

Giant bilateral scrotal lipoma in elderly may as part of the symptoms of abnormal somatic fat distribution.

Giant bilateral primary scrotal lipoma along with lipomas in multiple sites of the body: a case report and literature review

Mesenchymal neoplasms of the scrotum are extremely rare in the clinical practices, in which lipoma is the most common benign neoplasm of them. Primary scrotal lipoma refers to the lipoma originated from scrotal wall. We reported a rare case of a 47-year-old man who suffered from bilateral giant primary scrotal lipoma along with lipomas in multiple sites of the body. Scrotal ultrasound indicated that huge hypoechogenic masses were observed in the bilateral scrotums. Contrast-enhanced computed tomography (CT) indicated increased fat density in the scrotal areas. Surgical resection was performed on both scrotal neoplasms. Diagnosis of lipoma was confirmed by the pathological examination through the morphological observation as well as the absence of murine double minute2 (MDM2) gene amplification in the fluorescence in situ hybridization (FISH) test. After five months of follow-up, the wound of the patient recovered well and no sign of local recurrence was observed. Based on the literature review, very few cases of primary scrotal lipoma were reported in the scientific literature up to date, and this is the first report of bilateral primary scrotal lipoma along with multiple lipomas of the body. We presented this case as a rare phenomenon. Although primary scrotal lipoma is rare, clinicians should take it into account when encountering similar scrotal lesions and know the methods for diagnosis and how to make differential diagnosis with other diseases, which is associated with the patient's treatment strategy and prognosis.