Limits...
Clinicopathological characteristics of pulmonary epithelioid hemangioendothelioma: A report of four cases and review of the literature.

Shao J, Zhang J - Oncol Lett (2014)

Bottom Line: Patient prognosis is unpredictable, with life expectancy ranging from 1 to 15 years due to the fact that estrogenic receptors behave inconsistently within the tumor and the occurence of the disease in male patients does not support the usual hormonal hypothesis.In the present study, the clinicopathological features of four cases of PEH were investigated and the associated literature was reviewed.The results of this study may improve understanding with regards to the diagnosis and therapeutic options for patients with PEH.

View Article: PubMed Central - PubMed

Affiliation: Department of Pathology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, P.R. China.

ABSTRACT
This study aimed to investigate the clinicopathological characteristics, differential diagnosis and prognosis of pulmonary epithelioid hemangioendothelioma (PEH). PEH is a rare low-grade malignant vascular tumor. The cause of PEH remains unclear. Patient prognosis is unpredictable, with life expectancy ranging from 1 to 15 years due to the fact that estrogenic receptors behave inconsistently within the tumor and the occurence of the disease in male patients does not support the usual hormonal hypothesis. The clinical manifestations, imaging findings, histopathological characteristics and immunohistochemical phenotypes of four cases of epithelioid hemangioendothelioma occurring in the lung were retrospectively analyzed, and a review of the associated literature was conducted. The age of onset for the four PEH cases was 25-54 years, and the disease manifested as multiple nodules in the lungs or pleura. All of the patients underwent lobectomy or pulmonary wedge resection. The morphology of the tumor cells was epithelioid or spindle-shaped with abundant eosinophilic cytoplasm in which lumina or vacuoles containing erythrocytes were observed. The cells were arranged in nests and cords with degenerated interstitial mucoid. The morphology of the majority of the tumor cells was moderate, including mild atypia and little mitosis or necrosis. Immunohistochemical staining showed positive results for CD31, CD34 and F8. PEH is a rare low- to moderate-level tumor occurring in the lungs with differentiation toward vascular endothelial cells. Clinically, it is difficult to distinguish from a variety of other benign and malignant lung diseases. For diagnosis, a distinction must be made from other diseases such as chronic granulomatous disease, amyloid nodules, hamartoma, primary and metastatic lung cancers, malignant mesothelioma and vascular sarcoma. In the present study, the clinicopathological features of four cases of PEH were investigated and the associated literature was reviewed. The results of this study may improve understanding with regards to the diagnosis and therapeutic options for patients with PEH.

No MeSH data available.


Related in: MedlinePlus

Immunohistochemical characteristics of epithelioid hemangioendothelioma (Envision; magnification, ×100) (A, case 1; B, case 3). Expression of (A) cluster of differentiation 31 and (B) factor VIII in the tumor cells.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4214485&req=5

f3-ol-08-06-2517: Immunohistochemical characteristics of epithelioid hemangioendothelioma (Envision; magnification, ×100) (A, case 1; B, case 3). Expression of (A) cluster of differentiation 31 and (B) factor VIII in the tumor cells.

Mentions: The tumor cells of all four cases were positive for CD31, F8 and vimentin; CD34 expression was positive in three cases; and EMA was focally positive in one case. The tumor cells of all four cases were negative for other markers, including TTF1, CK, CK7, calretinin and desmin (Fig. 3A and B). The pathological diagnosis was PEH in each case.


Clinicopathological characteristics of pulmonary epithelioid hemangioendothelioma: A report of four cases and review of the literature.

Shao J, Zhang J - Oncol Lett (2014)

Immunohistochemical characteristics of epithelioid hemangioendothelioma (Envision; magnification, ×100) (A, case 1; B, case 3). Expression of (A) cluster of differentiation 31 and (B) factor VIII in the tumor cells.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4214485&req=5

f3-ol-08-06-2517: Immunohistochemical characteristics of epithelioid hemangioendothelioma (Envision; magnification, ×100) (A, case 1; B, case 3). Expression of (A) cluster of differentiation 31 and (B) factor VIII in the tumor cells.
Mentions: The tumor cells of all four cases were positive for CD31, F8 and vimentin; CD34 expression was positive in three cases; and EMA was focally positive in one case. The tumor cells of all four cases were negative for other markers, including TTF1, CK, CK7, calretinin and desmin (Fig. 3A and B). The pathological diagnosis was PEH in each case.

Bottom Line: Patient prognosis is unpredictable, with life expectancy ranging from 1 to 15 years due to the fact that estrogenic receptors behave inconsistently within the tumor and the occurence of the disease in male patients does not support the usual hormonal hypothesis.In the present study, the clinicopathological features of four cases of PEH were investigated and the associated literature was reviewed.The results of this study may improve understanding with regards to the diagnosis and therapeutic options for patients with PEH.

View Article: PubMed Central - PubMed

Affiliation: Department of Pathology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, P.R. China.

ABSTRACT
This study aimed to investigate the clinicopathological characteristics, differential diagnosis and prognosis of pulmonary epithelioid hemangioendothelioma (PEH). PEH is a rare low-grade malignant vascular tumor. The cause of PEH remains unclear. Patient prognosis is unpredictable, with life expectancy ranging from 1 to 15 years due to the fact that estrogenic receptors behave inconsistently within the tumor and the occurence of the disease in male patients does not support the usual hormonal hypothesis. The clinical manifestations, imaging findings, histopathological characteristics and immunohistochemical phenotypes of four cases of epithelioid hemangioendothelioma occurring in the lung were retrospectively analyzed, and a review of the associated literature was conducted. The age of onset for the four PEH cases was 25-54 years, and the disease manifested as multiple nodules in the lungs or pleura. All of the patients underwent lobectomy or pulmonary wedge resection. The morphology of the tumor cells was epithelioid or spindle-shaped with abundant eosinophilic cytoplasm in which lumina or vacuoles containing erythrocytes were observed. The cells were arranged in nests and cords with degenerated interstitial mucoid. The morphology of the majority of the tumor cells was moderate, including mild atypia and little mitosis or necrosis. Immunohistochemical staining showed positive results for CD31, CD34 and F8. PEH is a rare low- to moderate-level tumor occurring in the lungs with differentiation toward vascular endothelial cells. Clinically, it is difficult to distinguish from a variety of other benign and malignant lung diseases. For diagnosis, a distinction must be made from other diseases such as chronic granulomatous disease, amyloid nodules, hamartoma, primary and metastatic lung cancers, malignant mesothelioma and vascular sarcoma. In the present study, the clinicopathological features of four cases of PEH were investigated and the associated literature was reviewed. The results of this study may improve understanding with regards to the diagnosis and therapeutic options for patients with PEH.

No MeSH data available.


Related in: MedlinePlus