Intrascrotal hibernoma mimicking liposarcoma: A case study

Testicular Pouch Hibernoma: A Case Report

Hibernomas are rare lipomatous tumors derived from brown adipose tissue. Only two cases of hibernomas in the scrotum have been reported in the literature so far. Brown adipose tissue is responsible for thermogenesis in hibernating mammals and embryos. In adult humans, reminiscent brown tissue is most frequently located in the axial skeleton, scapular waist, and neck. This case report describes the finding of a testicular pouch hibernoma in a 34-year-old male who presented with a nodule in the scrotum, which was initially suspected to be a lipoma. The diagnosis was confirmed by histopathological analysis, and the patient was treated by surgical excision. Despite its rarity, hibernoma should be part of the differential diagnosis for lipoma, the most frequent benign mesenchymal neoplasm worldwide.

Scrotal Lipoblastoma with Radiological and Histological Correlation

Lipoblastomas are rare benign mesenchymal tumors comprised primarily mature adipocytes, which are most commonly found in infants and children younger than 3 years. They are usually found in the extremities, trunk, head, neck, and retroperitoneum, although cases occurring in the scrotum have been reported. Due to its rarity, there is a relative paucity of literature describing its imaging and management. We present a rare case of a scrotal lipoblastoma, and discuss the current imaging strategies to differentiate this adipocytic tumor from other more common paratesticular masses, including aggressive neoplasms such as rhabdomyosarcomas. Knowledge of the radiological appearance of lipoblastoma can provide the correct diagnosis and prevent unnecessary orchiectomy.