Psittacosis differential diagnosis: Difference between revisions
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==Differentiating Psittacosis from other Disease== | ==Differentiating Psittacosis from other Disease== | ||
Psittacosis can be differentiated in 3 categories based on the manifestations of the patient. | Psittacosis can be differentiated in 3 categories based on the manifestations of the patient. | ||
For the patient with | For the patient with atypical pneumonia, other conditions to consider include; | ||
*Chlamydia pneumoniae, | *Chlamydia pneumoniae, | ||
*Mycoplasma pneumoniae, and | *Mycoplasma pneumoniae, and | ||
*Legionella infection | *Legionella infection | ||
For the patient who presents with febrile illness without localizing signs, the following should also be considered; | |||
*Influenza | |||
*Endocarditis | |||
*Septicemia | |||
*Vasculitis | |||
*Coxiella burnetii infection | |||
*Leptospirosis | |||
*Brucellosis | |||
Table 1; (Showing the differentials between C psittaci, C pneumonia, M pneumonia, and L pneumophila) | Table 1; (Showing the differentials between C psittaci, C pneumonia, M pneumonia, and L pneumophila) | ||
{| class="wikitable" | {| class="wikitable" | ||
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*Coxiella burnetii infection, | *Coxiella burnetii infection, | ||
*Leptospirosis, and | *Leptospirosis, and | ||
*Brucellosis | *Brucellosis | ||
==References== | ==References== | ||
Revision as of 22:06, 26 June 2017
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Psittacosis Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Psittacosis differential diagnosis On the Web |
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American Roentgen Ray Society Images of Psittacosis differential diagnosis |
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Risk calculators and risk factors for Psittacosis differential diagnosis |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Aditya Govindavarjhulla, M.B.B.S. [2]
Overview
Psittacosis must be differentiated from other diseases that cause atypical pneumonia, febrile illness without localizing signs and extrapulmonary manifestations such as gastroenteritis, hepatitis, meningitis, or encephalitis.
Differentiating Psittacosis from other Disease
Psittacosis can be differentiated in 3 categories based on the manifestations of the patient. For the patient with atypical pneumonia, other conditions to consider include;
- Chlamydia pneumoniae,
- Mycoplasma pneumoniae, and
- Legionella infection
For the patient who presents with febrile illness without localizing signs, the following should also be considered;
- Influenza
- Endocarditis
- Septicemia
- Vasculitis
- Coxiella burnetii infection
- Leptospirosis
- Brucellosis
Table 1; (Showing the differentials between C psittaci, C pneumonia, M pneumonia, and L pneumophila)
| Clinical feature | C.psittaci | C.pneumoniae | M pneumoniae | L pneumophila |
|---|---|---|---|---|
| Cough | ++ | + | ++ | + |
| Sputum | - | + | ++ | +++ |
| Dyspnea | + | + | ++ | +++ |
| Sore throat | - | ++ | - | - |
| Headache | +++ | + | - | + |
| Confusion | + | - | - | ++ |
| Diarrhea | - | - | - | + |
| Chest radiograph changes | Minimal | Minimal | Disparity | Often multifocal |
| Hyponatremia | - | - | - | ++ |
| Leukopenia | - | - | - | + |
| Abnormal Liver function tests | + | - | + | ++ |
| Response to doxycycline | Rapid- afebrile within 48 hours | Prompt | Prompt | Improved but still unwell |
Key;
+, occurs in some cases
++, occurs in many cases,
+++, occurs frequently
For the patient who presents with febrile illness without localizing signs, the following should also be considered;
- Influenza,
- Endocarditis,
- Septicemia,
- Vasculitis,
- Coxiella burnetii infection,
- Leptospirosis, and
- Brucellosis