mesenchymal tumors Flashcards
fibroma
a true neoplasm where the fiber starts growing
rare
the most common “tumor” of the oral cavity
fibroma
t/f fibromas can happen anywhere in the body
true
peripheral ossifying fibroma location
outside the bone and on the gingiva
t/f peripheral ossifying fibroma is a rare lesion that is reactive
false, true. it is a common lesions that is considered reactive
t/f the distinction bt a peripheral and central ossifying fibroma is important for the tx process
true
prognosis for peripheral ossifying fibroma
good, high recurrence (just cut off)
fibrosarcoma
malignant tumor of fibroblasts
pyogenic granuloma
“pregnancy tumor”
reactive lesions to irritation or injury
t/f a pyogenic granuloma is non-neoplastic
true
what is a better name for a pyogenic granuloma
lobular capillary hemangioma (it is a vascular tumor)
if a pyogenic granuloma happens in women, when do you remove it
after pregnancy
t/f in a gingival excision of a pyogenic granuloma, you should extend down to the periosteum
true
peripheral giant cell lesion
vascular, gingival (or on an edentulous ridge), tumor from the pdl or periosteum
most common “gum bumps”
5 p’s:
- pyogenic granuloma
- peripheral ossifying fibroma
- peripheral giant cell granuloma
- “plain” fibroma
- parulis
lymphangioma
benign growth of lymph vessels
does a lymphangioma blanch
no (not vascular)
are lymphangiomas congenital
maybe. half of all lesions are noted at birth, and 90% are before age 2
features of lymphangiomas
commonly on the tongue
cluster of translucent vesicles (frog egg appearance)
angiosarcoma
malignancy of blood vessels
traumatic neuroma
proliferation of axons after trauma (nerves try to grow and reattach to each other)
t/f a traumatic neruoma is painful
yes. on palpation
schwannoma
benign neoplasm of schwann cells
t/f a schwannoma is painful
no
what cell types are involved in a nerofibroma
schwann cells and perineural fibroblasts
t/f neruofibromatosis is hereditary
true
characteristics of neruofibromatosis
cafe au lait sports with axillary freckling (Crowe’s spots), and lisch nodules (spots in eyes)
granular cell tumor neural origin
schwann cells
common location of granular cell tumor
tongue
malignant peripheral nerve sheath tumor has this on a radiograph
intrabony swelling
leiomyoma
benign tumor of smooth muscle
where can you have a leiomyoma
anywhere (it is vascular)
doesn’t blanche unless it is a vascular leiomyoma
rhabdomyoma
benign tumor of skeletal muscle (not on palate or gingiva)
lipoma
benign tumor of fat tissue
what color ore lipomas
yellow or pink hue
congenital epulis occurs when
at birth on the alveolar ridge tissue
what does a congenital epulis looks like
pink-red, smooth surfaces single or polypoid mass
congenital epulis are most commly seen in
females
