Myeloma, Waldenstroms, and Spleen - Parks Flashcards
What are Bence Jones proteins
monoclonal light chains in the urine
In multiple myeloma, the first bones to show osteolytic lesions is the (blank)
vertebral columns
Multiple myeloma is a clonal expansion of (blank) cells
plasma cells
After the vertebral column, what other bones are sights of lesions of multiple myeloma?
ribs, skull, and lymph nodes
Why do patients with multiple myeloma have hypercalcemia?
Myeloma plasma cells have osteoclastic activity via RANKL and DKK1 which results in hypercalcemia
T/F: myeloma osteoclasts break down the marrow
true
What is the calcium phosphate molecule broken down by MM plasma cells?
hydroxyappetite
What are four concerns of hypercalcemia?
Heart arrythmias, renal disease, depression, and kidney stones
T/F: multiple myeloma can lead to osteoporosis
not necessarily; osteoporosis is a system wide issue while myeloma lesions are local
T/F: compression factures and pathologic fractures of the humerus are common in MM
true
“Flaming” plasma cells are indicative of (MM/Waldenstroms)
MM
Malignant plasma cells make high levels of (functional/disfunctional) Ig
dysfunctional
T/F: Myelomas only secrete the light chain portion of Abs
false; they secrete the whole chain
Myelomas produce (all/one) type(s) of Igs
one type of Ig onnly
An M spike or protein spike would be indicative of (blank)
myelomas
Multiple myeloma shows an M spike in which two types of Ig?
IgA or IgG
Waldenstroms Macroglobulinemia presents as what type of Ig spike?
IgM
High levels of Ig can result in hyper(blank)
viscosity
Despite making lots of Ig, pts with myeloma or waldenstroms have hypo(blank)
hypogammaglobulinemia
You need (cell mediated/humoral) immunity to fight bacterial infections
humoral