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Various sonographic patterns of smooth muscle tumors of the gastrointestinal tract: a comparison with computed tomography
Author(s) -
Chen J J,
Changchien C S,
Chiou S S,
Tai D I,
Lee C M,
Kuo C H
Publication year - 1992
Publication title -
journal of ultrasound in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 91
eISSN - 1550-9613
pISSN - 0278-4297
DOI - 10.7863/jum.1992.11.10.527
Subject(s) - medicine , leiomyosarcoma , computed tomographic , gastrointestinal tract , leiomyoma , smooth muscle tumor , computed tomography , radiology , abdominal cavity , smooth muscle , pathology , anatomy
To evaluate the sonographic patterns of smooth muscle tumors of the gastrointestinal tract, we analyzed 25 patients with histologically confirmed smooth muscle tumors. Sonography revealed no abdominal mass in seven patients (sonogram‐negative), and abdominal masses in 18 patients (sonogram‐positive). The mean size of tumors in the sonogram‐negative group (4.5 +/‐ 1.5 cm) was smaller than that in the sonogram‐positive group (11.4 +/‐ 3.5 cm). We classified the various sonograms into three patterns. Comparing the sonograms with the computed tomographic pictures of each pattern, we theorized that the different patterns on sonograms may be caused by tumor necroses of different sizes with or without gas in the necrotic cavity. For the necrotic tumors, the size of the necrotic area did not correspond to the size of the tumor. However, the tumors with necroses were significantly larger than those without necroses. A central necrosis was found in cases exhibiting both leiomyosarcoma and leiomyoma. On comparing the sonogram‐positive and sonogram‐negative groups, we found that the size and location of a tumor may affect the detection rate of that tumor by sonography.