Tufted Angioma


Acquired Tufted Angioma at Scanning Magnification
Scanning magnification of acquired tufted angioma (ATA) shows scattered lobular collections of vessels image in the superficial and deep dermis. The lobules bulge into dilated vessels, with a few peripheral semilunar spaces identified.



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Acquired Tufted Angioma: Lobular Cluster of Vessels
Higher magnification of ATA shows a lobular cluster of blood vessels lined by small, oval to spindle-shaped cells. Lumina are collapsed and slit-like image.

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Acquired Tufted Angioma at High Magnification
High-power view shows bland cytologic features of the tufted angioma endothelial cells. Some of the cells show mild nuclear hyperchromasia image, but no significant cytologic atypia is identified.

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Acquired Tufted Angioma at Low Magnification
Scanning magnification of another ATA shows scattered dermal lobular collections of vessels. The lobules bulge into dilated vessels, with a few peripheral semilunar spaces identified image.


TERMINOLOGY


Synonyms




• Acquired tufted angioma (ATA)

• Tufted hemangioma

• Angioblastoma (of Nakagawa)

• Progressive capillary hemangioma


Definitions




• Multiple cannonball-like, scattered cellular collections of small vessels in dermis


ETIOLOGY/PATHOGENESIS


Unknown




• Most cases sporadic; rare familial case described

• Some cases associated with pregnancy or liver transplantation


CLINICAL ISSUES


Epidemiology




• Incidence
image Rare tumors

• Age
image Children and young adults


Site




• Neck, shoulders, and upper trunk most common

Apr 24, 2017 | Posted by in PATHOLOGY & LABORATORY MEDICINE | Comments Off on Tufted Angioma
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