CR Chest Fair Game Flashcards
Case 103 - Fleischner Low Risk
= 4 mm
No Followup Needed
Case 103 - Fleischner Low Risk
>4 mm - 6 mm
CT at 12 mo
If no change no further fu needed
Case 103 - Fleischner Low Risk
>6 - 8 mm
CT at 6-12 months
Then 18-24 months if no change
Case 103 - Fleischner High Risk
= 4 mm
CT at 12 mo
If no change no further f/u
Case 103 - Fleischner High Risk
>4 - 6 mm
CT at 6 - 12 months
then
18-24 months if no change
Case 103 - Fleischner High Risk
>6 - 8 mm
CT at 3 - 6 months
then
9-12 months AND 24 months if no change
Case 103 - Fleischner High Risk
>8 mm
CT at 3, 9, and 24 months
or
PET vs Bx
Case 104
4 Causes of Tracheal Stenosis
Intubation Injury Malignancy TB Wegners Granulomatosis Amyloidosis
Case 105
Causes of Thymic Hyperplasia
Myasthenia Gravis Steroids or chemo Scleroderma Hyperthyroidism - Grave's Dz Hyperplasia Rheumatoid Arthritis Red Cell Aplasia
Case 105
How do you distinguish between Thymic hyperplasia and Neoplasia?
MRI using chemical shift artifact
Case 106 SPN - Which is most likely malignant? Solid Nodule Ground-glass Nodule Semi-solid Nodule of mixed attenuation (ground glass and solid)
Semi-solid Nodule of mixed attenuation
Case 106
What manifests as a solid nodule with a halo of ground glass?
BAC
Invasive Aspergillosis
Candidiasis
Cytomegalovirus
Case 106
In which clinical setting is Invasive Aspirgillosis most likely to occur?
Severely neutropenic patient
Case 106
BAC is a subtype of which cancer cell type?
Adenocarcinoma
Case 52
Five tumors that may affect central airways
Lung CA Hamartoma Carcinoid Mucoepidermoid Carcinoma Endobronchial mets
Case 52
T of TNM - For centrally obstructing neoplasm
Hilar but not all lung?
Entire lung?
T2
T3
Case 53
What organ systems are affected in Wegner’s Granulomatosis?
Lungs
Kidneys
Case 53
Define Wegener’s Granulomatosis
Necrotizing Vasculitis involving the upper respiratory tract, lungs, and kidneys
Limited form of the disease is confined to lungs
Case 53
Thoracic Manifestations of Wegener’s Granulomatosis
Multiple Lung Nodules / Masses Well Defined Cavitation Feeding Vessels Peripheral Distribution
Case 54
Multiple poorly defined lung nodules in immunosuppressed patient?
Fungal Pneumonia
- Invasive Aspergillus
Case 54
CT halo sign?
Ground glass surrounding a nodule indicating hemorrhage
Early sign in the course of infection with Aspergillus
Case 54
Most common fungal infection to affect immunosuppressed patients?
Pulmonary Aspergillosis
- Potentially lethal
- May undergo cavitation
Case 55
LAM v. EG
LAM EG
Thin uniform cysts Irregular bizzare
Diffuse Spares CP angles
Pneumothorax/Chylothorax Nodules
Nonsmoker Smoker
Case 55
Name two infiltrative lung diseases that are associated with a cystic pattern
LAM
Eosinophilic Granuloma - Langerhan’s Cell Histiocytosis
Case 55
Name two pleural complications of LAM
Chylothorax
Pneumothorax
Case 55
Describe the typical demographic features of LAM
Reproductive age female (35 yo avg)
Nonsmoker
Case 56
Most likely cause of focal consolidation in an HIV-positive patient?
Community Acquired Bacterial Pneumonia
Case 55
Differences in cysts between LAM vs LCH
LAM
- smooth cysts
- regular and uniform
LCH
- irregular / bizarre cysts
AND
- nodules which can cavitate
- Spares the Costophrenic Angles
Case 56
Second most common cause of focal consolidation in an HIV-positive patient?
TB
Case 56
How often does PCP present as a focal consolidation on an HIV-positive patient?
10%
Case 56
Are recurrent bacterial pneumonias an AIDS-defining illness?
Yes
Case 57
Low density nodes with peripheral enhancement?
TB
Case 57
Lymph node enlargement is most common in primary or post-primary TB?
Primary TB
Case 57
Primary TB - is LN enlargement more common in pediatric or adult patients?
Pediatric
Case 57
HIV-positive pt with TB - Are enlarged mediastinal LNs encountered more commonly in CD4 counts above or below 200/mm?
Below
Case 58
HIV-positive patient with bilateral perihilar ground glass densities
Pneumocystis jiroveci pneumonia - PCP
Case 59
Name four benign causes of calcified LNs
TB
Histoplasmosis
Sarcoidosis
Silicosis
Case 59
Neoplasm with ossified lymph nodes
Osteosarcoma
Case 60
Two infections that can result in rapidly growing nodules in non-AIDS immunosuppressed patients
Fungal
Septic Infarcts
Case 60
What organism is most closely associated with septic infarcts?
Staph aureus
Case 60
Three common sources of septic infarcts
Tricuspid Endocarditis
Indwelling Catheters
Prosthetic Devices
Case 60
List four features of septic infarcts
Poorly defined nodules that cavitate
Wedge Shaped
Peripheral and Basilar
Feeding Vessel
Case 61
Four radiographic signs of bronchopleural fistula
Space fails to fill with fluid
Abrupt decrease in air-fluid level
New air in previously opacified space
Contralateral shift of the mediastinum
Case 62
Right Apical Tumor - most common cell type?
Squamous Cell Carcinoma
Case 62
Name four absolute contraindications to surgical resection of superior sulcus tumors
Invasion of more than 50% of a vertebral body
Brachial Plexus invasion above T1
Esophageal Invasion
Tracheal invasion
Case 63
Irregular shaped cysts with some scattered nodules
Langerhan’s Cell Histiocytosis
- 90% smokers
- spares lung bases and CP angles
Case 64
Reticulonodular interstitial densities - three possible diagnosis
Drug toxicity
Lymphangetic carcinomatosis
Atypical Infection
Case 64
Malignancies commonly associated with lymphangitic carcinomatosis
Breast
Lung
Stomach
Colon
Case 64
Unilateral lymphangitic carcinomatosis
Lung CA
Case 65
Right apical mass with satellite nodules
Reactivation TB
Case 65
Satellite nodules - infection vs malignancy
Infection
Case 65
Most common sites for post-primary TB in the lung?
Apical and posterior segments of the upper lobes and superior segments of the lower lobes
Case 67
Fatty diffuse mediastinal widening
Mediastinal Lipomatosis
Case 67
Three risk factors for developing mediastinal lipomatosis
Obesity
Cushing’s Syndrome
Steroids