Presenting History
In adolescents presenting with suspected Pediatric Systemic Lupus Erythematosus (pSLE), elicit multi-system autoimmune manifestations: constitutional, mucocutaneous, musculoskeletal, serositis, renal, and neuropsychiatric.
- Mucocutaneous Manifestations:
- Malar Rash: Is there a red butterfly rash over both cheeks and the bridge of the nose? Does it characteristically spare the nasolabial folds?
- Photosensitivity: Does sun exposure cause burning, erythema, or rash flare?
- Alopecia: Is there diffuse thinning of hair? Are clumps of hair lost during combing? Broken short hairs along the forehead (lupus hairs)?
- Oral Ulcers: Are there painless sores on the roof of the mouth (hard palate) or buccal mucosa?
- Constitutional & Musculoskeletal:
- Has there been persistent low-grade fever, unexplained weight loss, and debilitating fatigue?
- Is there symmetrical pain, swelling, and morning stiffness in the small joints of the hands and wrists?
- Renal Symptoms (Lupus Nephritis):
- Is there morning periorbital puffiness, pedal edema, or abdominal distension?
- Is the urine dark, red, smoky, or characteristically frothy and bubbly?
- Serositis & Neuropsychiatric:
- Any sharp chest pain worsened by deep breathing or lying supine (pleuritis / pericarditis)?
- Any severe unremitting headaches, seizures, visual hallucinations, or sudden personality changes?
Negative History (3C 1D Framework)
| Category | Pertinent Negative Question | Rationale / Significance |
|---|---|---|
| Causes | Drug Exposure: No history of taking carbamazepine, phenytoin, hydralazine, or minocycline. | Rules out drug-induced lupus erythematosus (anti-histone positive). |
| Complaints (Differentiating) | Dermatomyositis: No violaceous heliotrope rash on eyelids, no Gottron papules, no proximal muscle weakness. Systemic JIA: No once-daily quotidian fever spikes or evanescent salmon-pink rash. | Differentiates pSLE from Juvenile Dermatomyositis (JDM). Differentiates from Systemic JIA (which lacks malar rash and has negative ANA). |
| Complications | Lupus Nephritis / RPGN: No oliguria, gross hematuria, severe hypertension, or sudden anasarca. Neuropsychiatric SLE (NPSLE): No seizures, acute psychosis, chorea, or focal stroke. Thromboembolism: No history of acute painful swollen leg (DVT) or sudden dyspnea (PE). | Class IV Diffuse Proliferative LN carries high risk of rapid progression to ESRD. NPSLE carries high morbidity and requires pulse cyclophosphamide. Anti-phospholipid syndrome (APS) complicates 30-40% of pediatric SLE. |
| Differentials | MCTD: No severe Raynaud phenomenon or sclerodactyly. Post-Infectious Glomerulonephritis: No history of self-resolving acute nephritis without multi-organ features. | Differentiates from Mixed Connective Tissue Disease (anti-U1 RNP). Differentiates isolated glomerulonephritis from systemic autoimmune disease. |
Other Relevant History
- Family History & Pedigree: Multi-generational history of SLE, Hashimoto thyroiditis, rheumatoid arthritis, celiac disease, or early recurrent miscarriages.
- Menstrual & Pubertal History: Age of menarche, menstrual regularity (steroids and cyclophosphamide impact gonadal function).
History Summary
"Master/Miss `Patient Name`, a `Age` old `male/female` adolescent, `Birth Order` born of a `consanguineous/non-consanguineous` marriage from `City, State`, presented with a `Duration in weeks` history of intermittent fever, malar butterfly rash sparing nasolabial folds, photosensitivity, non-scarring alopecia, painless palatal ulcers, symmetrical polyarthritis of hands, and frothy urine with periorbital and pedal edema, with a positive family history of `Autoimmune disease`, in the absence of seizures, psychosis, or pleuritic chest pain.
In view of the multisystem involvement across mucocutaneous, articular, and renal domains, I would like to consider a provisional diagnosis of Pediatric Systemic Lupus Erythematosus (pSLE), complicated by active Lupus Nephritis, requiring emergent ANA, anti-dsDNA, complement C3/C4 testing, and renal biopsy."
General & Head-to-Toe Examination
- Vitals:
- Blood Pressure: Mandatory measurement; classify stage of hypertension.
- Heart rate, respiratory rate, temperature.
- Detailed Dermatological Examination:
- Malar Rash: Inspect for confluent erythema across cheeks and nasal bridge; verify strict sparing of nasolabial folds.
- Hair: Non-scarring alopecia, positive hair pull test, and presence of broken "lupus hairs" along frontal hairline.
- Oral Cavity: Inspect hard palate under bright light for shallow painless mucosal ulcers.
- Edema: Quantify bilateral pitting pedal and facial periorbital edema.
- Palpate Peripheral Pulses: Check for Raynaud changes or digital infarctions.
- Musculoskeletal Examination:
- Palpate wrists, MCP, and PIP joints for warmth, tenderness, and synovial thickening; confirm non-erosive reducible nature (Jaccoud arthropathy).
Systemic Examination
Cardiovascular & Respiratory Systems
- Auscultate for Pericardial Friction Rub or Pleural Friction Rub; assess heart sounds and check for basal stony dullness (pleural effusion).
Abdomen
- Palpate for soft hepatomegaly; check for shifting dullness (ascites / lupus serositis).
Central Nervous System
- Comprehensive mental status exam (screen for depression, delirium, or psychosis); cranial nerves I-XII; fundoscopy for cytoid bodies / cotton-wool spots.
Final Summary & Diagnosis
"A `Age` old adolescent `male/female` presenting with constitutional symptoms, malar butterfly rash sparing nasolabial folds, photosensitivity, non-scarring alopecia, painless oral ulcers, polyarthritis, and hypertension (`BP in mmHg`) with nephrotic-range edema and frothy urine.
My final diagnosis is Pediatric Systemic Lupus Erythematosus (pSLE) fulfilling EULAR/ACR 2019 criteria, complicated by active Lupus Nephritis (likely Class III or IV Diffuse Proliferative), without neuropsychiatric SLE or acute serositis, requiring immediate renal biopsy and induction immunosuppression."