Fetal retroperitoneal lipoblastoma: Ultrasonographic appearance of a rare embryonal soft tissue tumor

Api, Oluş; Akil, A; Uzun, M Güray; Acioglu, Hasniye Celik; Yalçın, Özben; Apı, Murat; Ünal, Orhan

doi:10.3109/14767050903301025

Cited by 4 publications

(3 citation statements)

References 8 publications

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“…One patient was diagnosed at a screening for fetal malformations. [ 23 ] Five were diagnosed with lipoblastmatosis. In the review, almost all of the patients required complete resection; one patient had intraspinal extension requiring 3 separate surgeries for complete resection.…”

Section: Discussionmentioning

confidence: 99%

“…[ 4 ] However, 2 patients were resected incompletely due to multiple retroperitoneal lesions of lipoblastomatosis in one and adhesion to the kidney in the other. [ 19 , 23 ] Three cases reported complications associated with tumor resection. [ 15 , 19 , 21 ] One patient developed chronic bilateral venostasis after excision, [ 15 ] one required internal iliac artery and vein reconstruction at resection, [ 21 ] and one developed septic shock and died.…”

Section: Discussionmentioning

confidence: 99%

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A large retroperitoneal lipoblastoma

et al. 2018

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Introduction:Lipoblastoma is a rare benign soft tissue tumor that occurs most commonly in infants and children. However, retroperitoneal lipoblastomas are rare, occurring in <5% of cases. We report a case of large retroperitoneal lipoblastoma and the largest collection of known retroperitoneal lipoblastomas in children in the literature.Case presentation:A 3-year-old girl presented with left abdominal mass. Magnetic resonance imaging (MRI) revealed a soft tissue mass measuring 12 × 8 × 6 cm in the retroperitoneal region. The mass had a clearly defined margin and a reticular pattern with an interposing fat component. Based on these findings, the mass was suspected to be a soft-tissue tumor, most likely lipoblastoma.Laparotomy with resection of the retroperitoneal mass was performed. The tumor was easily dissected from the retroperitoneal space without injury to surrounding structure.A histopathological examination demonstrated the mature proliferation of adipocytes and spindle-shaped cells separated by fibrovascular septa accompanied by myxoid changes. The cells were separated into lobules by septa, and areas of immature adipocytes showing a signet-ring or multivacuolar appearance were present at the periphery. Histopathological diagnosis was lipoblastoma. Follow-up at 6 months revealed no evidence of recurrence.Conclusion:Retroperitoneal lipoblastoma is rare and tends to be large in size when diagnosed at presentation. Complete resection should not be delayed, as impingement on the surrounding structures is imminent.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

A large retroperitoneal lipoblastoma

et al. 2018

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“…It is found most commonly in the trunk or upper and lower extremities as a painless nodule or mass [ 1 ]. Less common sites of involvement include the head and neck area [ 2 ], mediastinum [ 3 ], mesentery [ 4 ], omentum [ 5 ], retroperitoneum [ 6 ], and scrotum [ 7 – 16 ]. The accurate preoperative diagnosis is difficult because of its rarelity and the similarity with the other soft tissue tumors [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Intrascrotal lipoblastoma: report of a case and the review of literature

et al. 2016

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Intrascrotal lipoblastoma is a rare pediatric benign soft tissue neoplasm, and only 11 cases have been reported. The accurate preoperative diagnosis is difficult because of its rarelity and the similarity with the other soft tissue tumors. Among them, accurate preoperative diagnosis had been made in only one case. Thus, almost all of the cases had required inguinal mass excision (and orchidectomy in one case). In this paper, we discuss the accurate preoperative diagnosis of intrascrotal lipoblastoma and subsequent simple tumorectomy via minimal invasive scrotal skin incision, in 1-year-old boy. On physical examination, intrascrotal extra-testicular lobulated mass was palpated on the right scrotum. An ultrasonography revealed the well-circumscribed, iso-echoic, scant blood-flow, and lobulated tumors with each lobules of 1 to 4 cm in diameter, and the tumor located outside of the tunica vaginalis testis. The serum values of alpha-fetoprotein (AFP) and beta-human chorionic gonadotropin (b-hCG) were within normal limit. The preoperative diagnosis of intrascrotal lipoblastoma was made, and the mass was excised via minimal scrotal incision. The right testicle and epididymis were normal. The lesion consisted of the distinct two lobulated tumors, and microscopic examination confirmed the diagnosis of intrascrotal lipoblastoma. The postoperative course was uneventful without evidence of recurrence. A rare intrascrotal lipoblastoma is seldom made accurate preoperative diagnosis; however, the accurate preoperative suspicion of this tumor leads to the minimal invasive tumorectomy via scrotal skin incision and favorable postoperative recovery without recurrence.

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