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Case Reports
. 2021 Dec;11(12):84-87.
doi: 10.13107/jocr.2021.v11.i12.2580.

Shoulder Lipoblastoma in a 2-Year-Old Boy Case Report and Literature Review

Abdulaziz Adnan Al-Tammar  1 , Abdullah Al-Faraj  1 , Wael T Abodief  2 , Jarrah Abughaith  1 , Aliaa Khaja  1
Affiliations
Case Reports

Shoulder Lipoblastoma in a 2-Year-Old Boy Case Report and Literature Review

Abdulaziz Adnan Al-Tammar et al. J Orthop Case Rep. 2021 Dec.

Abstract

Introduction: Lipoblastoma is a rare mesenchymal benign tumor of the white fat cells that affect mostly infants and children below 3 years old. MLipoblastoma can be found in various locations in the body, however, it is usually located in the extremities, lower extremities in particular.

Case report: We describe a case of a 2-year-old Middle Eastern boy who has a rare lipoblastoma of his left shoulder that is unusual.

Conclusion: The most common presentation of this rare tumor is a child younger than 3 years old with asymptomatic, painless, rapidly growing mass that warrants an appropriate index of suspicion to avoid misdiagnosis. Complete excision with free margins is fundamental as a definitive treatment of this benign tumor to eradicate any chance of recurrence or any possible complications including compressive symptoms, magnetic resonance imaging may be helpful in identifying the nature of the mass, however, the diagnosis confirmed postoperatively through histological and cytogenetic analysis. Chromosomal analysis is quite helpful in differentiating lipoblastoma from liposarcoma because they have different management and prognosis.

Keywords: Lipoblastoma; complete excision; high index of suspicion.

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Conflict of interest statement

Conflict of Interest: Nil

Figures

Figure 1
Figure 1
(a and b) Magnetic resonance imaging results revealing the dimension of the mass in different planes.
Figure 2
Figure 2
Lobular architecture with sheets of adipocytes (arrows) separated by fibrovascular septa (stars), (H&E stain ×20).
Figure 3
Figure 3
The fat lobules exhibit a zonal pattern of maturation with more immature primitive stellate and/or spindled mesenchymal cells in a myxoid background at the periphery (stars) and mature adipocytes in the center (inside the circle), (H&E stain ×100).
Figure 4
Figure 4
Multivacuolated lipoblasts (stars), (H&E stain ×600).
Figure 5
Figure 5
Myxoid areas display a plexiform vascular pattern (arrows) with primitive mesenchymal cells (stars), (H&E stain ×400).
Figure 6
Figure 6
Intraoperative picture of the lesion.
Figure 7
Figure 7
Gross appearance of the resected specimen, it is around 3*2.5*2, grayish-yellow color with lobular structure.
See this image and copyright information in PMC

References

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