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See subtype below: Sclerosing PEComa

General
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Epidemiology
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Prognostic factors
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Case reports
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Treatment
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Clinical images
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Cutaneous, c/o Dr. Mark R. Wick

Gross images
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Uterus: polypoid gray-white mass

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Uterus: polypoid mass

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Buttocks, c/o Dr. Mark R. Wick

Micro description
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Micro images
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Bladder:

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Epithelioid cells

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MelanA+

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Smooth muscle actin+



Cervix:

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Mass with central circular core

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Infiltrative border

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Spindled to epithelioid areas

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Degenerative atypia

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Pecomatosis

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Ovarian hila

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HMB45+



Head and neck:

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Nasal PEComa

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Larynx



Soft tissue (Case of the Week #283):

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Alpha smooth muscle actin

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HMB45 - low power

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HMB45 - high power



Soft tissue courtesy of Dr. Mark R. Wick:

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Angiomyolipoma

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Cutaneous



Uterus:

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Malignant epithelioid cells

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Actin+ (red) and HMB45+ (brown)

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HMB45+ recurrent tumor



Other:

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Kidney, MelanA+ tumor

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Prostate, HMB45+

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Site unknown, spindle cells

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Site unknown, malignant tumor



Positive stains
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Negative stains
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Electron microscopy description
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Molecular / cytogenetics description
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Differential diagnosis
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Sclerosing PEComa

General
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Case reports
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Treatment
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Gross description
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Gross images
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Well-circumscribed, encapsulated tumor

Micro description
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Micro images
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Nests of clear cells in sclerotic stroma

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Various stains

Positive stains
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Negative stains
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End of Soft Tissue > Perivascular epithelioid cell > PEComa - general



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