Abstract
A 59-year-old woman was admitted to our hospital for treatment of gallbladder stones. Ultrasonography showed multiple gallbladder stones and a hypoeochoic, homogeneous mass in the posterosuperior segment of the liver. A CT scan showed a well-defined, unenhanced round mass with a margin resembling the so-called "extra-pleural sign". This finding suggested that the tumor originated in the diaphragm adjacent to the liver. A preoperative diagnosis of primary diaphragmatic tumor and cholecystolithiasis was made, and resection of the diaphragmatic tumor and cholecystectomy were performed. Macroscopically, the resected tumor was 25 × 22 × 20mm in size, and it had a smooth connective tissue capsule. Based on the histological and immunohistological findings, the tumor was diagnosed as a schwannoma, "Antoni A type", originating in the diaphragm. Only 11 cases of primary diaphragmatic schwannoma have ever been reported, including 2 cases of malignant schwannoma, but the diagnosis of diaphragmatic schwannoma had never been made preoperatively. Surgical resection was performed in all 11 cases. Primary diaphragmatic tumors are rare, and malignant tumors account for approximately 40% of the total. Primary diaphragmatic schwannoma is very difficult to diagnose preoperatively. Whenever a primary diaphragmatic tumor is diagnosed, it should be resected.
| Original language | English |
|---|---|
| Pages (from-to) | 45-50 |
| Number of pages | 6 |
| Journal | Mie Medical Journal |
| Volume | 49 |
| Issue number | 1-3 |
| Publication status | Published - 01-12-1999 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Medicine(all)
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A case of primary diaphragmatic Schwannoma. / Iida, Toshio; Suzuki, Tomoaki; Takabayashi, Shin; Saegusa, Shotaro; Tanigawa, Kenji; Nakagawa, Shunichi; Higashiguchi, Takashi; Imai, Takazumi; Murata, Tetsuya.
In: Mie Medical Journal, Vol. 49, No. 1-3, 01.12.1999, p. 45-50.Research output: Contribution to journal › Article
TY - JOUR
T1 - A case of primary diaphragmatic Schwannoma
AU - Iida, Toshio
AU - Suzuki, Tomoaki
AU - Takabayashi, Shin
AU - Saegusa, Shotaro
AU - Tanigawa, Kenji
AU - Nakagawa, Shunichi
AU - Higashiguchi, Takashi
AU - Imai, Takazumi
AU - Murata, Tetsuya
PY - 1999/12/1
Y1 - 1999/12/1
N2 - A 59-year-old woman was admitted to our hospital for treatment of gallbladder stones. Ultrasonography showed multiple gallbladder stones and a hypoeochoic, homogeneous mass in the posterosuperior segment of the liver. A CT scan showed a well-defined, unenhanced round mass with a margin resembling the so-called "extra-pleural sign". This finding suggested that the tumor originated in the diaphragm adjacent to the liver. A preoperative diagnosis of primary diaphragmatic tumor and cholecystolithiasis was made, and resection of the diaphragmatic tumor and cholecystectomy were performed. Macroscopically, the resected tumor was 25 × 22 × 20mm in size, and it had a smooth connective tissue capsule. Based on the histological and immunohistological findings, the tumor was diagnosed as a schwannoma, "Antoni A type", originating in the diaphragm. Only 11 cases of primary diaphragmatic schwannoma have ever been reported, including 2 cases of malignant schwannoma, but the diagnosis of diaphragmatic schwannoma had never been made preoperatively. Surgical resection was performed in all 11 cases. Primary diaphragmatic tumors are rare, and malignant tumors account for approximately 40% of the total. Primary diaphragmatic schwannoma is very difficult to diagnose preoperatively. Whenever a primary diaphragmatic tumor is diagnosed, it should be resected.
AB - A 59-year-old woman was admitted to our hospital for treatment of gallbladder stones. Ultrasonography showed multiple gallbladder stones and a hypoeochoic, homogeneous mass in the posterosuperior segment of the liver. A CT scan showed a well-defined, unenhanced round mass with a margin resembling the so-called "extra-pleural sign". This finding suggested that the tumor originated in the diaphragm adjacent to the liver. A preoperative diagnosis of primary diaphragmatic tumor and cholecystolithiasis was made, and resection of the diaphragmatic tumor and cholecystectomy were performed. Macroscopically, the resected tumor was 25 × 22 × 20mm in size, and it had a smooth connective tissue capsule. Based on the histological and immunohistological findings, the tumor was diagnosed as a schwannoma, "Antoni A type", originating in the diaphragm. Only 11 cases of primary diaphragmatic schwannoma have ever been reported, including 2 cases of malignant schwannoma, but the diagnosis of diaphragmatic schwannoma had never been made preoperatively. Surgical resection was performed in all 11 cases. Primary diaphragmatic tumors are rare, and malignant tumors account for approximately 40% of the total. Primary diaphragmatic schwannoma is very difficult to diagnose preoperatively. Whenever a primary diaphragmatic tumor is diagnosed, it should be resected.
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M3 - Article
VL - 49
SP - 45
EP - 50
JO - Mie Medical Journal
JF - Mie Medical Journal
SN - 0026-3532
IS - 1-3
ER -