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Case Reports
. 2024 Jun 13:48:56.
doi: 10.11604/pamj.2024.48.56.40400. eCollection 2024.

Metastatic myxoid round cell liposarcoma of the buttock: a case report

Niare Ndour  1 , Mamadou Sarr  1 , Assane Diop  1 , Mamadou Diouldé Kanté  2 , Coumba Ndiaye  1 , Astou Diouf  1 , Fatou Diagne  1 , Moussa Diallo  2   3 , Fatimata Ly  1
Affiliations
Case Reports

Metastatic myxoid round cell liposarcoma of the buttock: a case report

Niare Ndour et al. Pan Afr Med J. .

Abstract

Liposarcoma is a rare primitive mesenchymal tumor, developed at the expense of adipose tissue and with a preferential location in the thigh. We report an observation of liposarcoma in the buttock. A 56-year-old man, presented with a tumor of the right buttock for 2 years. Examination revealed an inflammatory, ulcerated tumor in the upper-external quadrant of the right buttock, measuring about 8 cm. Bilateral inguinal adenopathies were associated. The diagnostic hypotheses were: a squamous cell carcinoma, a cutaneous lymphoma, and cutaneous metastases. An anatomical examination confirmed the diagnosis of myxoid round-cell liposarcoma. The extension work-up appeared compatible with secondary pleuropulmonary, hepatic, cutaneous, and lymph node neoplastic localizations. The patient was treated with chemotherapy with the Adriamycin-carboplatin protocol. The evolution was rapidly fatal after a few weeks after the first course of chemotherapy. It should be evoked in front of any ulcerated tumor of the buttock.

Keywords: Myxoid liposarcoma; buttock; case report; metastasis; round cell.

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Conflict of interest statement

The authors declare no competing interest.

Figures

Figure 1
Figure 1
liposarcoma of the buttock. An ulcer of the superior-external quadrant of the buttock, with a purulent background and some necrotic areas
Figure 2
Figure 2
infiltration of the buttock and inguinal region with a large adenopathy
Figure 3
Figure 3
histological image of a myxoid liposarcoma with round cells, pleomorphic
Figure 4
Figure 4
thoracic stage of a CT scan revealed multiple nodules at the upper lobar and bilateral lingular level with a medium lobar macronodule of 39 mm × 18 mm compatible with secondary pulmonary localizations
Figure 5
Figure 5
pelvic stage of a CT scan, axial section, showing the buttock infiltrating the soft tissues of the gluteal region, inguinal adenopathies
See this image and copyright information in PMC

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