🧵 “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.
🧵 “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
Cryoglobulins are cold-precipitating immunoglobulins.
Their presence can mean infection, malignancy, or autoimmunity.
Here are 10 essential pearls to help you spot and manage cryoglobulinemia 👇
#Rheumatology #Autoimmune #MedTwitter #ClinicalPearls @DrAkhilX @AskDrShashank @IhabFathiSulima
1/ 🧪 What are cryoglobulins?
Immunoglobulins that precipitate at <37°C and dissolve on warming.
📌 They can clog vessels, causing vasculitis and end-organ damage.
2/ 🔬 Types of cryoglobulinemia:
•Type I: Monoclonal (IgM or IgG) — usually myeloma or Waldenström
•Type II: Mixed (monoclonal IgM + polyclonal IgG) — often HCV-related
•Type III: Mixed polyclonal — autoimmune (SLE, RA)
Gout is common — and commonly mismanaged.
Here are 10 mistakes that prolong pain, damage joints, and frustrate patients 👇
#Rheumatology #Gout #MedTwitter #ClinicalPearls @DrAkhilX @IhabFathiSulima @JasmineNephro
1/ 💊 Starting allopurinol during an acute flare
→ Can worsen or prolong the attack
📌 Wait until the flare settles, then start urate-lowering therapy
2/ 📉 Stopping urate-lowering therapy during a flare
→ ULT should be continued chronically once started
📌 Flares ≠ reason to stop