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Doege-Potter syndrome.

Moreira BL, Monarim MA, Romano RF, Mattos LA, D'Ippolito G - Radiol Bras (2015 May-Jun)

View Article: PubMed Central - PubMed

Affiliation: Escola Paulista de Medicina da Universidade Federal de São Paulo (EPMUnifesp), São Paulo, SP, Brazil.

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the mass exhibited heterogeneous enhancement delimiting areas of necrosis or cystic/myxoid heterogeneous signal intensity on T2-weighted image, with areas of high signal intensity and a focus of marked low signal intensity located between the superior and inferior portions... It may cause pain and symptoms resulting from adjacent structures compression... by hypoglycemia secondary to the SFT as it produces high-molecular-weight IGF-II prohormone At CT, SFT generally is seen as a degeneration or hemorrhage... Calcifications are rarely found... heterogeneous signal intensity on T2-weighted images, with areas of high signal intensity (necrosis or cystic/myxoid degeneration) and low signal intensity (fibrosis/collagen or Histopathological and immunohistochemical analyzes are necessary to confirm the diagnosis.

No MeSH data available.


A: Iodinated contrast-enhanced CT (portal phase) – coronalreconstruction – identifies a large retroperitoneal, heterogeneous mass with two mainportions. The upper portion of the mass is more heterogeneous and presents intense,peripheral enhancement, delimiting areas of necrosis or cystic/myxoid degeneration.The lower portion of the mass is less vascularized. B: Iodinatedcontrast enhanced CT (portal phase) – axial section – shows the region of the upperportion of the mass with heterogeneous density and enhancement. C:Coronal MRI T2-weighted HASTE image reveals a voluminous retroperitoneal, lobulatedlesion with two distinctive portions, the upper portion more heterogeneous, with fociof high signal intensity on T2-weighted image and the lower portion with intermediateand less heterogeneous signal intensity. The white arrow indicates a nodular areawith marked low signal intensity on T2-weighted image, which might correspond to adense fibrotic stroma. D: Axial MRI T1-weighted image with fatsaturation after intravenous contrast (gadolinium) injection in the region of theupper portion of the lesion shows findings similar to the ones observed at CT.
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f01: A: Iodinated contrast-enhanced CT (portal phase) – coronalreconstruction – identifies a large retroperitoneal, heterogeneous mass with two mainportions. The upper portion of the mass is more heterogeneous and presents intense,peripheral enhancement, delimiting areas of necrosis or cystic/myxoid degeneration.The lower portion of the mass is less vascularized. B: Iodinatedcontrast enhanced CT (portal phase) – axial section – shows the region of the upperportion of the mass with heterogeneous density and enhancement. C:Coronal MRI T2-weighted HASTE image reveals a voluminous retroperitoneal, lobulatedlesion with two distinctive portions, the upper portion more heterogeneous, with fociof high signal intensity on T2-weighted image and the lower portion with intermediateand less heterogeneous signal intensity. The white arrow indicates a nodular areawith marked low signal intensity on T2-weighted image, which might correspond to adense fibrotic stroma. D: Axial MRI T1-weighted image with fatsaturation after intravenous contrast (gadolinium) injection in the region of theupper portion of the lesion shows findings similar to the ones observed at CT.

Mentions: A male, 81-year-old patient admitted because of a progressive increase of the abdominalvolume for five months, in association with daily episodes of sudden sweating with syncope.Physical examination revealed the presence of a palpable mass in the right flank andhypogastrium. Computed tomography (CT) (Figures 1Aand 1B) demonstrated a voluminous, predominantlysolid, expansile retroperitoneal mass in the right hemiabdomen, with lobulated contours andheterogeneous density, measuring 19.0 × 15.0 × 12.0 cm. The upper portion ofthe mass exhibited heterogeneous enhancement delimiting areas of necrosis or cystic/myxoiddegeneration, while the lower portion was less vascularized. Neither calcification nor fatwere observed. At magnetic resonance imaging (MRI) (Figures1C and 1D), the lesion exhibitedheterogeneous signal intensity on T2-weighted image, with areas of high signal intensityand a focus of marked low signal intensity located between the superior and inferiorportions. At T1-weighted image, the mass was subtly heterogeneous, with no fatty or hematiccontents. The lower portion of the lesion presented diffusion restriction. Afterintravenous contrast injection (gadolinium), the mass exhibited enhancement similar to theone above described for CT.


Doege-Potter syndrome.

Moreira BL, Monarim MA, Romano RF, Mattos LA, D'Ippolito G - Radiol Bras (2015 May-Jun)

A: Iodinated contrast-enhanced CT (portal phase) – coronalreconstruction – identifies a large retroperitoneal, heterogeneous mass with two mainportions. The upper portion of the mass is more heterogeneous and presents intense,peripheral enhancement, delimiting areas of necrosis or cystic/myxoid degeneration.The lower portion of the mass is less vascularized. B: Iodinatedcontrast enhanced CT (portal phase) – axial section – shows the region of the upperportion of the mass with heterogeneous density and enhancement. C:Coronal MRI T2-weighted HASTE image reveals a voluminous retroperitoneal, lobulatedlesion with two distinctive portions, the upper portion more heterogeneous, with fociof high signal intensity on T2-weighted image and the lower portion with intermediateand less heterogeneous signal intensity. The white arrow indicates a nodular areawith marked low signal intensity on T2-weighted image, which might correspond to adense fibrotic stroma. D: Axial MRI T1-weighted image with fatsaturation after intravenous contrast (gadolinium) injection in the region of theupper portion of the lesion shows findings similar to the ones observed at CT.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4492573&req=5

f01: A: Iodinated contrast-enhanced CT (portal phase) – coronalreconstruction – identifies a large retroperitoneal, heterogeneous mass with two mainportions. The upper portion of the mass is more heterogeneous and presents intense,peripheral enhancement, delimiting areas of necrosis or cystic/myxoid degeneration.The lower portion of the mass is less vascularized. B: Iodinatedcontrast enhanced CT (portal phase) – axial section – shows the region of the upperportion of the mass with heterogeneous density and enhancement. C:Coronal MRI T2-weighted HASTE image reveals a voluminous retroperitoneal, lobulatedlesion with two distinctive portions, the upper portion more heterogeneous, with fociof high signal intensity on T2-weighted image and the lower portion with intermediateand less heterogeneous signal intensity. The white arrow indicates a nodular areawith marked low signal intensity on T2-weighted image, which might correspond to adense fibrotic stroma. D: Axial MRI T1-weighted image with fatsaturation after intravenous contrast (gadolinium) injection in the region of theupper portion of the lesion shows findings similar to the ones observed at CT.
Mentions: A male, 81-year-old patient admitted because of a progressive increase of the abdominalvolume for five months, in association with daily episodes of sudden sweating with syncope.Physical examination revealed the presence of a palpable mass in the right flank andhypogastrium. Computed tomography (CT) (Figures 1Aand 1B) demonstrated a voluminous, predominantlysolid, expansile retroperitoneal mass in the right hemiabdomen, with lobulated contours andheterogeneous density, measuring 19.0 × 15.0 × 12.0 cm. The upper portion ofthe mass exhibited heterogeneous enhancement delimiting areas of necrosis or cystic/myxoiddegeneration, while the lower portion was less vascularized. Neither calcification nor fatwere observed. At magnetic resonance imaging (MRI) (Figures1C and 1D), the lesion exhibitedheterogeneous signal intensity on T2-weighted image, with areas of high signal intensityand a focus of marked low signal intensity located between the superior and inferiorportions. At T1-weighted image, the mass was subtly heterogeneous, with no fatty or hematiccontents. The lower portion of the lesion presented diffusion restriction. Afterintravenous contrast injection (gadolinium), the mass exhibited enhancement similar to theone above described for CT.

View Article: PubMed Central - PubMed

Affiliation: Escola Paulista de Medicina da Universidade Federal de São Paulo (EPMUnifesp), São Paulo, SP, Brazil.

AUTOMATICALLY GENERATED EXCERPT
Please rate it.

the mass exhibited heterogeneous enhancement delimiting areas of necrosis or cystic/myxoid heterogeneous signal intensity on T2-weighted image, with areas of high signal intensity and a focus of marked low signal intensity located between the superior and inferior portions... It may cause pain and symptoms resulting from adjacent structures compression... by hypoglycemia secondary to the SFT as it produces high-molecular-weight IGF-II prohormone At CT, SFT generally is seen as a degeneration or hemorrhage... Calcifications are rarely found... heterogeneous signal intensity on T2-weighted images, with areas of high signal intensity (necrosis or cystic/myxoid degeneration) and low signal intensity (fibrosis/collagen or Histopathological and immunohistochemical analyzes are necessary to confirm the diagnosis.

No MeSH data available.