Extra Conditions Flashcards
Red meat and alcohol can be risk factors for what condition due to purine emphasis?
Gout
What condition is an abnormal purine metabolism leading to uric acid accumulation?
Gout
When uric acid accumulates in gout, what do they become?
Monosodium urate crystals (tophus/tophi)
What occurs with gout?
Recurrent acute joint inflammation leading to destruction and fibrosis
Over 90% of the cases of gout is what kind?
Primary - hyperuricemia
What is the hypothesized cause of primary gout?
Enzyme defects
With primary gout, what accumulates in the blood?
Uric acid
What is secondary gout?
Gout that is secondary to another disease or from drug exposure
What are examples of some causes of secondary gout?
Renal disease leukemia, multiple myeloma, diuretics
What is the cause of the inflammation of gout?
Failed crystal phagocytosis
What is the usual age of those with gout?
Over 30
Gout usually occurs among which gender?
Males
What is the most common location for gout inflammation?
Hallux (MTP) aka podagra
About what percent of the population is affected by gout?
1%
The historical name, “Kings Disease”, is associated with what condition?
Gout
Monoarticular inflammation is characteristic of what condition?
Gout
What is the first stage of gout?
Asymptomatic hyperuricemia
What is the second stage of gout?
Acute gouty arthritis causing erythema
What is the third stage of gout?
Repeated chronic tophaceous arthritis that fails to resolve itself between cycles
20% of those with gout die from what issue?
Renal failure (gouty nephropathy)
What are other names for pseudogout?
Chondrocalcinosis or Calcium Pyrophosphate Deposition Disease (CPDD)
What causes pseudogout?
Altered pyrophosphate metabolism
Are most cases of pseudogout inherited?
No, most commonly sporadic
What is the usual location for pyrophosphate crystal deposition of pseudogout?
Knee, wrist, shoulder, hip, elbow, ankle
Only about how many cases of pseudogout lead to destruction of joints from inflammation?
50%
After what age is pseudogout seen among half of the population?
Over the age of 85
What is the usual onset age for pseudogout?
Over 50
What is the treatment for pseudogout?
Palliative medicine (NSAIDs or corticosteroids)
What specific location in the wrist is common for pseudogout to occur?
Triangular fibrocartilage complex
What is hydroxyapatite deposition disease usually called?
Calcific tendinitis
What is the sign of calcific tendinitis on X-ray?
Soft tissue opacities from ossification
What is the most common location for calcific tendinitis?
Rotator cuff muscles
What is the age of onset for calcific tendinitis?
40-70
What is the most common muscle affected by calcific tendinitis?
Supraspinatus
Adhesive capsulitis (frozen shoulder) and increased age are risk factors for what condition?
Calcific tendinitis
What is the other name for diffuse idiopathic skeletal hyperostosis?
Forestier disease
What ligament is affected in the cervical and thoracic spine in DISH?
Anterior longitudinal ligament (ALL)
What is the usual spinal location for DISH?
T7-T11
What is the most common age for DISH?
50-70
What are risks for DISH?
Diabetes and HLA-B27
Can we adjust patients with DISH?
Yes
What is the most common cause of infectious arthritis?
Bacteria
What occurs with infectious arthritis?
Rapid joint destructions within days
What is the treatment for infectious arthritis?
Based on microbial agent: IV antibiotics and analgesics
What is the name of the pus forming infectious arthritis?
Suppurative arthritis
What is the most common location for suppurative arthritis?
Knee
90% of suppurative arthritis involve how many joints?
Just one (monoarticular)
Which microbe is the most common agent involved with suppurative arthritis among children under 2 years of age?
Haemophilus influenzae
Which microbe is the most common agent involved in suppurative arthritis among children older than 2 years of age and adults?
Staphylococcus aureus
Which microbe is the most common agent involved in adolescents and young adults?
Neisseria gonorrhoeae
Who is at a higher risk for neisseria gonorrhoeae causing infectious arthritis?
Sexually active females
What is the most common microbe at fault for infectious arthritis among those with sickle cell anemia?
Salmonella spp
What is the frequency of Lyme arthritis in the US?
20,000 cases per year
What microbe is at fault for Lyme arthritis?
Borrelia burgdorferi
How is Lyme arthritis diagnosed?
Presence of IgM and IgG in serum
What occurs in the first stage of Lyme arthritis?
Red lesion with pale center, fever, lymphadenopathy, and is self resolving in weeks
What occurs in stage two of Lyme arthritis?
Secondary skin lesions, migratory joint pain, myalgia, meningitis, arrhythmias
What occurs in the third stage of Lyme arthritis?
2-3 years after infection, chronic polyarthritis of large joints and possible encephalitis
What are space occupying lesions?
SOL: pus, blood, tumor, or edema (things that are in an area where they shouldn’t be potentially causing problems)
Are primary joint neoplasms rare or common?
Very rare and most commonly benign
Which is more common: tumor like lesions or neoplasia in joints?
Tumor like lesions
What are the two examples of tumor like lesions?
Ganglion or synovial cyst
What is the common location for a ganglion?
Wrist
What makes up a ganglion?
Degenerative connective tissue
What is the name of a synovial cyst in the popliteal region?
Baker’s cyst
What is the difference between a ganglion and a synovial cyst?
Communication with the synovium is present in synovial cysts only
What is the typical age for tenosynovial giant cell tumors?
20-50 years
What joint condition involves an aggressive benign tumor?
Tenosynovial giant cell tumor (TGCT)
What is the type of TGCT that is larger?
Diffuse TGCT (pigmented villonodular synovitis)
Which type of TGCT is smaller and involved with the tendon sheaths?
Localized TGCT
What is the common location for diffuse TGCT?
Knee
What is the common location for localized TGCT?
Hand
What is the most common soft tissue tumor of the hand?
Localized TGCT
Tumors of adipose, fibrous, muscle, vessels, or the PNS are what kind of tumors?
Soft tissue tumors
Are soft tissue tumors usually benign or malignant?
Benign (100X)
If a soft tissue tumor is malignant, what is it called?
Soft tissue sarcoma
What is the most common area for a soft tissue tumor or sarcoma?
Thigh (but can occur anywhere)
What is the exception for a location where soft tissue tumors are more likely to be malignant than benign?
Skeletal muscle
What is a benign tumor of adipocytes?
Lipoma
What is a malignant tumor of adipocytes?
Liposarcoma
What is the most common type of soft tissue tumor of adults?
Lipoma
What type of soft tissue tumor is likely to be encapsulated?
Lipoma
What is the usual age range for liposarcomas?
40-50
What is the location for possible metastasis for a liposarcoma?
Lungs
What is the usual location for liposarcomas?
Retroperitoneum, thigh
What is the genetic factor of liposarcomas?
Degraded p53 resulting from a translocation of chromosomes 12 and 16
What is the term for a reactive fibroblastic mass?
Nodular fasciitis
What is the usual location for a nodular fasciitis?
Volar (Palm-side) of arm, chest, back
Nodular fasciitis tends to result from what kind of event?
Trauma (10-15%)
What is the term for reactive metaplastic bone?
Myositis ossificans
What is the most common location for myositis ossificans?
Proximal extremity muscles
A hard, painless mass is characteristic of what kind of fibrous tumor like mass?
Myositis ossificans
What condition should you attempt to rule out when suspicious of myositis ossificans due to their similarities in appearance?
Osteosarcoma
Myositis ossificans is common among what group of people?
Adolescent athletes
What type of fibrous like tumor mass is benign but locally invasive that tends to commonly recur?
Finromatosis
Dupuytren contracture and Peyronie disease are examples of what kind of fibromatosis?
Superficial
What is the most common age for superficial fibromatosis?
40-70
What another term for deep fibromatosis?
Desmoid tumor
Where are desmoid tumors or deep fibromatoses most commonly found?
Abdominal area
Which type of fibromatosis is associated with Gardner Syndrome?
Deep
What is the term for a slow growing, malignant fibrous like tumor mass?
Fibrosarcoma
What are the usual locations for fibrosarcomas?
Thigh, retroperitoneum, knee
What is the most common age for fibrosarcomas?
35-55
Neoplastic fibroblasts and anaplastic spindle cells are associated with what kind of fibrous like tumor mass?
Fibrosarcomas
25% of fibrosarcomas metastasize hematogenously to what location, most commonly,
Lungs
Herringbone pattern is associated with what fibrous like mass tumor?
Fibrosarcomas
What are skeletal muscle precursors?
Rhabdomyoblasts
What is the term for a malignant and aggressive skeletal muscle tumor?
Rhabdomyosarcoma
What is the most common location generally and specifically for rhabdomyosarcomas?
Generally in areas with little skeletal muscle. Specifically in the areas of the head and neck
What are other locations for rhabdomyosarcomas?
Genitourinary, extremities, trunk
What is the most common pediatric soft tissue sarcoma?
Rhabdomyosarcoma
What changes with the prognosis for adults with rhabdomyosarcomas?
Poor prognosis (2/3 of pediatrics will be 100% cured)
What is the term for a benign smooth muscle tumor?
Leiomyoma
What is the term for a malignant smooth muscle tumor?
Leiomyosarcoma
What is the most common location for a leiomyoma?
Uterus (often called fibroids)
What population is more at risk for leiomyosarcomas?
Adult females
What is a unique common area for leiomyosarcomas?
Inferior vena cava (retroperitoneum or extremities)
Spindle cells and cigar shaped nuclei are associated with what kind of smooth muscle tumor?
Leiomyosarcomas
What makes up 10% of all soft tissue sarcomas?
Synovial sarcomas
What is the most common age range for synovial sarcomas?
20-40 years
What is the unique pattern of growth associated with synovial sarcomas?
Cells grow in solid cords or aggregates
Why is synovial sarcoma an inappropriate name?
Only <10% of cases actually are intra-articular
What is the most common location for a synovial sarcoma?
Knee (60-70%)
What is the treatment for synovial sarcomas?
Limb-sparing surgery and chemotherapy
What is the usual survivability for those with synovial sarcomas?
10 year survivability of 10-30%