Benign Tumors Flashcards
What is the most common benign tumor of the nose and paranasal sinuses and is usually asymptomatic?
Osteoma
Typically how big are Osteomas?
<2cm
What syndrome may Osteomas be associated with?
Gardener’s syndrome
What syndrome has multiple osteomas, colonic polyposis, and soft tissue fibromas?
Gardener’s syndrome
What benign tumor is a cortical bone that has failed to undergo medullary resorption during the process of endochondral ossification?
Bone island (enostoma)
Where in the body are bone islands found?
Anywhere except the skull
Where in the bone are bone islands typically found?
Epiphysis, metaphysis, but not diaphysis
What is a highly vascularized fibrous connective tissue?
Nidus
What benign tumor is <1cm and contains a radiolucent nidus with surrounding reactive sclerosis with gradual severe deep aching pain (pain worse at night) relieved by Aspirin along with painful rigid scoliosis?
Osteoid Osteoma
What age group does Osteoid Osteoma typically affect?
10-25 year olds
Where are Osteoid Osteomas typically found in the body?
Tibia and femur (50%)
What is found with very high levels in Osteoid Osteoma’s lesion?
Prostaglandins
What lesion looks like Osteoid Osteoma except the nidus is >1cm?
Brodie’s Abscess
What is a safe and effective method for treatment of osteoid osteoma at any location?
Thermocoagulation
What age group does osteoblastoma typically affect?
10-20 year olds
Where is osteoblastoma typically located?
Posterior neural arch of spine
What is the geographic radiolucent, lytic expansile lesion, is painless, no appreciable calcifications, and the most common benign tumor of the hand?
Solitary enchondroma
What age group does Solitary enchondroma typically affect?
10-30 year olds
Where in the bone does solitary enchondroma affect?
Metaphysis
What is benign and forms just underneath the skin, originating from the undersurface of the skin where there may have been a cut or puncture?
Epidermal Inclusion Cyst
What is a benign vascular soft tissue tumor that functions to regulate skin circulation and is found subungually, on the finger tip pulp, on the base of the foot and the rest of body in descending order?
Glomus Tumor of Finger
Where is the most common site for a glomus tumor of the finger?
subungual
What kind of fracture can occur with a solitary enchondroma?
Pathological fracture
What disease consists of painless, multiple enchondromas?
Ollier’s disease
Where in the bone does Ollier’s disease affect?
Diaphysis and metaphysis
What should you expect if a patient has pain and rapid growth of multiple enchondromatosis?
Malignant transformation
T/F: Enchondromas are metabolically active and may continue to grow and evolve throughout the patient’s
lifetime?
True
What syndrome is Enchondromatosis of bone and soft tissue cavernous hemangiomas?
Maffucci’s syndrome
How much greater of chance does Maffucci’s syndrome have over Ollier’s disease in becoming malignant?
25%
What is a rare primary benign bone tumor of cartilage origin, is painful with swelling, has Medullary oval or round lytic lesion in epiphysis, eccentric, Marginal sclerotic rim, and Short zone of transition
Chondroblastoma