13 results
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
to metastatic disease ... Systemic Diseases ... , Aneurysm • Pancreas ... Differential #Diagnosis #causes ... #primarycare #table
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
severity of the disease ... anti-NXP2 Abs Lung ... Mechanic's hands #AntiMDA5DM ... #AntiMDA5 #Dermatomyositis ... dermatology #diagnosis
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Periodontal disease ... dentition/gingival disease ... loss • Late disease ... Gingival crevice disease ... non-diagnostic in early disease
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
Causes of Bone/Joint ... Cell Disease Vaso-occlusive ... Generally affects long ... #SickleCell #Disease ... #hematology
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... disease ... Hematologic malignancy ... diarrhea, abdominal pain ... Imaging, high res CT
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
disease • ... Granulomatous disease ... • Liver diseases ... disease (GLILD) ... hypogammaglobulinemia #immunology #hematology
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
early localized disease ... cancers, including lung ... called "Bazin's disease ... so-called fifth disease ... differential #diagnosis #dermatology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
highly inflammatory disease ... Adult-onset Still disease ... erythematosus • Kawasaki disease ... of underlying disease ... Diagnosis #Management #Hematology
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
disease Malignancy ... disease • Dysphagia ... disease • Myositis ... skeletal muscle disease ... myocarditis Other Diseases
Blood Transfusion Reactions

Immune Mediated:
 • Febrile Non-Hemolytic Transfusion Reaction (FNHTR): Most common immune reaction to transfusion.
Related Acute Lung ... Graft Versus Host Disease ... Borrellia (Lyme disease ... Trypanosoma (Chagas disease ... diagnosis #management #hematology