Liposarcoma of the stomach

Abstract

We present a case of gastric liposarcoma, a very uncommon pathology; only nine cases have been reported in the literature. We describe the radiologic findings of this neoplasm and emphasize the correlation between computed tomography (CT) and the macroscopic morphology of the tumor, which is conditioned by its histology. In our case, CT demonstration of fatty areas within the gastric mass facilitated the diagnosis. This finding has not been described for liposarcomas of the stomach.

Liposarcoma of the stomach: A rare case report

“…Gastric liposarcomas originate due to proliferation of undifferentiated mesenchymal cells within the submucosa and the tunica muscularis layer of the stomach. As with other sarcomas there are no characteristic clinical findings [5] .…”

“…Upper g astrointestinal series may suppor t the diagnosis by the appearance of submucosal filling defects. Gastroscopy may sometimes reveal ulcerations [5] . T he definite diagnosis is best established by CT examination.…”

“…The relation between the histopathological type and CT findings is evident in such a way that well-differentiated liposarcomas show the classic heterogeneous density, myxoid type shows liquid cystic changes and round cell and pleomorphic types are characterized by a nonspecific solid structure [1,5] .…”

Primary liposarcoma of the stomach

“…In two reports, a close relationship between the tomographic appearance and histological type was accurately defined (5,6). It is quite obvious that CT is especially diagnostic in exophytic-growing gastric liposarcomas.…”

A Case of Fibrovascular Polyp of the Stomach: Sonographic and Computed Tomographic Findings

“…Histologically, there are four types of liposarcoma: well-differentiated, myxoid, round cell, and pleomorphic. Among these, well-differentiated liposarcoma shows heterogeneous fat attenuation with less-aggressive features than other types of liposarcoma, which may make it difficult to differentiate FVP (6, 7). …”