Leiomyosarcoma of the Kidney

Ochiai, Koji; Onitsuka, H; Honda, Hiroshi; Kono, Kenji; Uozumi, J; Kumazawa, J; Masuda, Kouji

doi:10.1097/00004728-199307000-00027

Cited by 22 publications

(16 citation statements)

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“…However, the CT findings found an increase of density after contrast medium with a slightly heterogeneous pattern in one of our cases performed with early helical CT. The CT findings may prove characteristic of myogenic tumors of the kidney [10]. The heterogeneity in fibrous content of the tumor was also reflected in its enhancement pattern on early and delayed CT [10].…”

Section: Discussionmentioning

confidence: 97%

“…The CT findings may prove characteristic of myogenic tumors of the kidney [10]. The heterogeneity in fibrous content of the tumor was also reflected in its enhancement pattern on early and delayed CT [10]. Areas of abundant fibrous tissue exhibit delayed enhancement with a low attenuation on early postcontrast CT and high attenuation on delayed CT. Conversely, areas of predominantly spindle cells were of high attenuation on early CT and of low attenuation on delayed CT.…”

Section: Discussionmentioning

confidence: 99%

“…This may be explained first by the small size of the mass and second by a homogeneous pattern on microscopic studies. In the literature, MRI appearance has only been reported once [10]. It was a huge multinodular mass of varying signal intensity.…”

Section: Discussionmentioning

confidence: 99%

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Small leiomyosarcoma of the renal capsule: CT findings

et al. 1998

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Three unusual cases of small-size leiomyosarcoma of the perirenal space were studied with CT. The renal capsule has been proved to be the origin of this type of tumor. A CT examination is accurate in suggesting the site of origin and excluding a renal cell carcinoma. However, unless evidence of invasion is noted, it is impossible on CT features to discriminate leiomyosarcoma from a benign leiomyoma.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

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Small leiomyosarcoma of the renal capsule: CT findings

et al. 1998

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“…The low signal intensity regions on T 2 weighted MRI exhibited delayed enhancement on CT and contained more fibrous tissue than did other sites that had more spindle shaped muscle cells. Knowledge of the MRI and CT characteristics may enable the radiologist to refine the diagnosis of renal leiomyosarcoma considerably [6].…”

Section: Discussionmentioning

confidence: 99%

Leiomyosarcoma of kidney – a case report with long term result after radiotherapy and chemotherapy

et al. 2007

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Leiomyosarcoma of the kidney is a rare entity with poor prognosis. Among renal sarcomas, it is the most common histologic subtype amounting to 50-60% of all cases. The tumors usually arise from either the renal capsule or smooth muscle tissue in the renal pelvic wall. We describe a case of renal leiomyosarcoma that presented with history of left flank pain. Physical examination was normal. Abdominal ultrasound showed a solid lesion of 38 x 36 mm arising from the left kidney. Intravenous urography showed cut off of both major and minor calyces of the left kidney from its pelvis with a normal right kidney. Exploratory laparotomy revealed a well-encapsulated mass confined to the renal parenchyma for which radical nephrectomy was performed. Histopathology showed a Grade I leiomyosarcoma arising from the renal capsule. Adjuvant chemotherapy and sandwich radiotherapy was given and he is disease free after six and half years of follow up. The rarity of this disease, its severity and poor prognosis, uncommon form of presentation, resulting delay in diagnosis and difficulty in management is highlighted and reported.

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“…The tumor was suspected to have occurred in the renal capsule in the present case before surgery because the tumor vessels were supplied by the left renal capsular arteries. The strong hyperintensity on T2-weighted images distinguished neurilemoma from leiomyoma (leiomyosarcoma), fibroma [9], or renal cell carcinoma, and the isointensity on T1-weighted images distinguished neurilemoma from lipoma.…”

Section: Discussionmentioning

confidence: 99%

Neurilemoma of the renal capsule: MR imaging and pathologic correlation

et al. 2001

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We report a case of neurilemoma arising from the renal capsule. Renal neurilemoma is an especially rare tumor, with only 15 cases previously reported. We attempted to correlate MR findings with microscopic components of the tumor. On T2-weighted images the solid part of the tumor was heterogeneous hyperintense. The MR signal intensity on T2-weighted images help estimate microscopic components of the renal neurilemoma.

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Leiomyosarcoma of the Kidney

Cited by 22 publications

References 0 publications

Small leiomyosarcoma of the renal capsule: CT findings

Small leiomyosarcoma of the renal capsule: CT findings

Leiomyosarcoma of kidney – a case report with long term result after radiotherapy and chemotherapy

Neurilemoma of the renal capsule: MR imaging and pathologic correlation

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