Malignant Mesenchymal Tumors and Lymphoreticular Malignancies - part II Flashcards
who is affected by non-Hodgkin lymphoma?
older age group than Hodgkin lymphoma
T/F: non-Hodgkin lymphoma is more common than Hodgkin lymphoma
true
T/F: incidence of non-Hodgkin lymphoma is decreasing in the US
false, rising
prevalence of non-Hodgkin lymphoma in increased in what type of patients?
patients who have immunologic problems (HIV, organ transplant, congenital and autoimmune disease)
T/F: all of non-Hodgkin lymphoma arise in lymph nodes
flase, most arise in lymph nodes but globally ~30-40% extranodal
T/F: primary site for non-Hodgkin lymphoma is often oral
true, it’s extranodal
where does non-Hodgkin lymphoma affect intraorally?
mass soft palate or buccal mucosa
lesions of PDL in non-Hodgkin lymphoma may be mistaken for what?
periapical or perio disease
oral clinical features of non-Hodgkin lymphoma
- soft tissue
- centrally in bone
- “boggy” consistency
- color range erythematous, purple
- ± ulceration
- vague pain, discomfort
mandibular involvement of oral non-Hodgkin lymphoma may have what?
“numb chin” sign due to paresthesia
what might a denture patient complain about with oral non-Hodgkin lymphoma?
“denture too tight”
the pain or discomfort from oral non-Hodgkin lymphoma may be mistaken for what?
toothache
T/F: early changes of non-Hodgkin lymphoma may be subtle or nonexistent
true
radiographic features of non-Hodgkin lymphoma
- “moth-eaten” or ill-defined radiolucency
2. expansion; can perforate and “break out” of bone into soft tissue
histopathologic features of non-Hodgkin lymphoma varies depending on what?
varies by type of lymphoma
what is needed to identify non-Hodgkin lymphoma under the microscope?
need IHC
Burkitt lymphoma histopathologically
“starry sky” (macrophages)
treatment of localized non-Hodgkin lymphoma
radiation ± chemotherapy
treatment for generalized non-Hodgkin lymphoma
chemotherapy
prognosis of non-Hodgkin lymphoma depends on what?
grade and stage
how many people die from non-Hodgkin lymphoma every year?
~1/3 die of disease
T/F: multiple myeloma/plasmacytoma has a plasma cell origin
true
what does plasma cells produce?
protein immunoglobulins (Ig) also known as antibodies (IgG, IgM, IgA, IgE, IgD)
multiple myeloma/plasmacytoma
clonal proliferation of one specific immunoglobulin type that is not normal or function –> disease
immunoglobulins are made of what?
- 2 heavy chain
2. 2 light chain
what are the 2 light chains?
- Kappa
2. Lambda
T/F: more heavy chains are produced
false, nearly equal amounts of heavy and light chains produced
T/F: in multiple myeloma, light chain (usually kappa) is not attached to heavy chain
true
what happens to the circulating unattached light chains?
filtered in kidney then secreted in urine (Bence Jones proteins)
spectrum of multiple myeloma/plasmacytoma
- smoldering
- solitary plasmacytoma
- multiple myelmoma
T/F: smoldering multiple myeloma/plasmacytoma is symptomatic
false, asymptomatic
T/F smoldering multiple myeloma is often diagnosed by chance finding on a blood test
true
what is a precursor to multiple myeloma?
solitary plasmacytoma
T/F: unifocal solitary plasmacytoma usually affects bone but can also affect soft tissue
true
excluding metastatic disease, multiple myeloma accounts for what percent of malignancies involving bone?
50%
T/F: it is rare for multiple myeloma to occur in people <40 y.o
true
T/F: multiple myeloma has a female predilection
false, 2:1 male
T/F: white males are 2x more affected than black males
false, black males affected 2x more than white males
what is the most common hematologic malignancy in black persons in the US?
multiple myeloma
what is the most characteristic symptom of multiple myeloma?
pain in lumbar spine
clinical features of multiple myeloma
- bone pain
- pathologic fractures
- renal failure
- calcifications in soft tissue (metastatic calcifications)
- fatigue
- petechial hemorrhages of skin and oral mucosa
- fever
- deposition of amyloid in various soft tissues
pathologic fractures in multiple myeloma patients are due to what?
tumor destruction of bone
why do multiple myeloma patients experience renal failure?
due to circulating light chain proteins
metastatic calcifications in multiple myeloma patients are caused by what?
hypercalcemia secondary to tumor-related osteolysis
why do multiple myeloma patients experience fatigue?
due to myelophthisic anemia
what will happen clinically if the platelet production of multiple myeloma patients are affected?
petechial hemorrhages of skin and oral mucosa
what causes fever in multiple myeloma patients?
results of neutropenia and increased susceptibility of infection
what causes deposition of amyloid in multiple myeloma patients?
accumulation of light chains
T/F: deposition of amyloid may be an initial manifestation of multiple myeloma
true, found in ~10-15% of cases
which sites are classically affected by amyloid in multiple myeloma patients?
- periorbital skin
2. oral mucosa
clinical features of amyloid deposition on the periorbital skin
waxy, firm, plaque-like lesions
where in the oral cavity is deposition of amyloid most prevalent?
tongue
clinical features of amyloid deposition on oral mucosa
- diffuse enlargement
- firmness
- nodular
- sometimes ulcerated
which bone can be affected by multiple myeloma?
any bone can be affected
radiographic features of multiple myeloma
- widespread lytic lesions of bone
2. “punched-out” non-corticated radiolucencies, especially skull
what might multiple myeloma appear as radiographically?
osteomyelitis
histopathologic features of multiple myeloma
- monotonous sheets of atypical plasma cells
- varying stages of differentiation
- IHC studies show monoclonal light chain restriction (kappa or lambda) of lesional cell population
what is the purpose of treatment for multiple myeloma?
- to control disease
2. keep patient comfortable
treatment for multiple myeloma
- chemotherapy
- bone marrow transplant
- radiation
- bisphosphonates
T/F: radiation is used only as a palliative treatment of multiple myeloma
true
what is bisphosphonates indicated for multiple myeloma treatment?
to help prevent fracture
T/F: prognosis for multiple myeloma varies among patients, but it is unlikely to be cured
true
T/F: prognosis for multiple myeloma patients is better for older patients
false, younger age better
T/F: prognosis for multiple myeloma is worse for patients with widespread disease or comorbidities
true