🧵 “10 Rheumatology Diagnoses That Are Often Missed (Until It’s Too Late)”
Some autoimmune diseases hide in plain sight.
Here are 10 real-world diagnoses clinicians overlook—until disaster strikes 👇
#Rheumatology #MedTwitter @DrAkhilX @IhabFathiSulima
1️⃣ Antiphospholipid Syndrome (APS)
✅ Clue: Young patient with unprovoked DVT or stroke.
📌 Don’t call it “just a clot.”
→ Look for recurrent miscarriages, livedo, aPL antibodies.
2️⃣ ANCA-Associated Vasculitis
✅ Clue: Sinusitis + hematuria + pulmonary infiltrates.
📌 Early treatment prevents kidney failure and alveolar hemorrhage.
3️⃣ Adult-Onset Still’s Disease (AOSD)
✅ Clue: Daily spiking fevers, salmon rash, high ferritin.
📌 Often mislabeled as “sepsis”—delays can lead to MAS.
🧵 “10 Myths in Rheumatology That Still Mislead Clinicians”
From diagnosis to treatment, misconceptions are everywhere.
Here are 10 myths in rheumatology you should stop believing right now 👇
#Rheumatology #MedTwitter #ClinicalPearls #Autoimmune @DrAkhilX @IhabFathiSulima
1️⃣ “A negative ANA rules out lupus.”
✅ False.
📌 Up to 5% of SLE patients are ANA-negative (especially in longstanding disease).
2️⃣ “RA always spares the DIP joints.”
✅ False.
📌 Erosive RA can involve DIPs—especially in severe disease.
📌 Psoriatic arthritis still more likely.
🧵 “10 Causes of Unexplained Fever Every Clinician Should Think About”
When infection workup is negative, don’t assume it’s “just viral.”
Here are 10 real causes of fever of unknown origin (FUO) that can be autoimmune or rheumatologic 👇
#Rheumatology #InfectiousDisease #MedTwitter #ClinicalPearls @IhabFathiSulima
🧵 “Ferritin 300–1,000? 10 Causes of Mild–Moderate Elevation (And When to Worry)”
Ferritin isn’t just an iron marker—it’s an acute phase reactant, an inflammation signal, and sometimes a danger sign.
Here’s how to approach ferritin in the 300–1,000 ng/mL range 👇
#Rheumatology #LabMedicine #MedTwitter #ClinicalPearls @IhabFathiSulima
1️⃣ Early Iron Overload
Hereditary hemochromatosis often starts here before progressing.
📌 Clue: Transferrin saturation >45%—if normal, iron overload unlikely.
✅ Consider HFE gene testing if strong suspicion.
2️⃣ Chronic Inflammation
RA, SLE, ankylosing spondylitis, IBD.
📌 Ferritin here is an acute phase reactant, not a marker of excess iron.
🧵 Interstitial Lung Disease (ILD) Patterns in Autoimmune Disease — A Visual Guide
ILD is one of the most serious complications of connective tissue disease.
Recognizing the pattern on HRCT guides prognosis, therapy, and referral urgency.
Here’s how to decode the main ILD patterns 👇
#Rheumatology #Pulmonology #MedTwitter #ILD @DrAkhilX @IhabFathiSulima
1/ 🫁 Why does ILD matter?
✅ Occurs in:
– Systemic sclerosis (~50%)
– RA (10–20%)
– Myositis/antisynthetase syndrome (up to 70%)
– Sjögren’s syndrome (~10–20%)
– SLE (rare)
✅ Major cause of dyspnea, hypoxia, and mortality
✅ Leading cause of death in SSc and myositis
2/ 🔍 Key ILD patterns to know:
1️⃣ NSIP — Nonspecific Interstitial Pneumonia
2️⃣ UIP — Usual Interstitial Pneumonia
3️⃣ OP — Organizing Pneumonia
4️⃣ DAD — Diffuse Alveolar Damage
💡 Each has unique imaging and prognostic features.
🧵 “Ferritin >1,000? 10 Things to Consider Before You Blame Inflammation”
Ferritin isn’t just an iron marker—it’s an acute phase reactant, a storage protein, and sometimes, a danger signal.
Here are 10 causes of very high ferritin (>1,000 ng/mL) you need to think about 👇
#Rheumatology #Hyperferritinemia #MedTwitter #ClinicalPearls @DrAkhilX @IhabFathiSulima
1/ 🔥 Macrophage Activation Syndrome (MAS) / HLH
•Ferritin often >5,000, sometimes >10,000
•Cytopenias, liver dysfunction, fever
📌 This is a medical emergency—act fast
2/ 🦠 Severe infections
•Sepsis, TB, fungal infections
•Always rule out infection before immunosuppression
📌 Ferritin can be massively elevated in cytokine storm
🧵 “10 Things Every Clinician Should Know About Antiphospholipid Syndrome (APS)”
APS isn’t just a lab diagnosis—it’s a dangerous, often under-recognized cause of clotting and pregnancy loss.
Here are 10 essential pearls to keep it on your radar 👇
#Rheumatology #APS #Autoimmune #MedTwitter #ClinicalPearls @DrAkhilX @IhabFathiSulima
1/ 🧬 What is APS?
An autoimmune prothrombotic disorder marked by:
✅ Arterial or venous thrombosis
✅ Pregnancy morbidity
✅ Persistently positive antiphospholipid antibodies
2/ 🩸 3 key antibodies define APS:
•Lupus anticoagulant (LAC)
•Anticardiolipin (aCL) IgG/IgM
•Anti-β2 glycoprotein I (β2GPI) IgG/IgM
📌 At least 1 must be positive twice, 12 weeks apart