Research Article

Hypertrophic Pachymeningitis in Chinese Patients: Presentation, Radiological Findings, and Clinical Course

Table 1

Clinical, laboratory, neuroradiologic, and therapeutic data from 16 patients with HP.

CaseAge/sexDuration (months)Previous historySymptomLaboratory testCSF testLesions on MRITreatmentFollow-up
WBCProtein (g/mL)

134/M2SinusitisHeadache, CN VIIESR↑35200Falx cerebri, tentoriumMPSR
264/M3Otitis media surgeryHeadacheCRP↑14785Frontal and temporal dura, tentoriumDXMSR
363/M4CN II, IV, VICRP↑0263Right temporal duraMPSR
453/F3Headache, cognitive decline0213Diffuse dural thickeningMPSR
561/F28MastoiditisHeadache, ataxia, CN II, VII, VII, XIIESR↑, CRP↑, WBC↑, C4↑, p-ANCA (+), ANA (+)10472Diffuse dural thickeningMP, MMFRR
664/F7Sinusitis surgeryHeadache
CN II, III, VI, VII
ESR↑, CRP↑, p-ANCA (+), MPO-ANCA (+), ANA (+), RF (+), anti-Ro-52 (+)0627Falx cerebri, tentoriumMP, AzaSR
768/M24HeadacheESR↑, CRP↑, p-ANCA (+), MPO-ANCA (+), ANA (+), RF (+)5524Frontal and occipital duraMP, AzaRR
849/F36Mastoiditis, sinusitisHeadache, CN II, V, limb numbnessESR↑, CRP↑, p-ANCA (+), MPO-ANCA (+)965548Frontal and apical dura, falx cerebri, T1–T6MP, HGG, MMFRR
967/M3MastoiditisHeadache, CN VII, VIIESR↑, CRP↑, p-ANCA (+), MPO-ANCA (+)601150Falx cerebri, tentoriumMPSR
1037/M6SinusitisLimb numbness4524Diffuse dural thickeningMP, MMFSR
1144/F4HeadacheWBC↑0187Falx cerebri, tentoriumMPSR
1241/F5SinusitisHeadacheESR↑, CRP↑, WBC↑0230Diffuse dural thickeningMPSR
1358/M4Sinusitis surgeryHeadacheCRP↑21094Falx cerebriDXMSR
1462/F3Headache, ataxia
CN II, VII, VII, XII
21557Diffuse dural thickeningMPSR
1553/M5Traumatic brain injury, mastoiditisHeadache, CN XESR↑, CRP↑201375TentoriumDXMSR
1624/F1HeadacheWBC↑1361Falx cerebri, tentoriumMP, AzaSR

ANA: antinuclear antibodies; AZA: azathioprine; CN: cranial nerve; CSF: cerebrospinal fluid; DXM: dexamethasone; ESR: erythrocyte sedimentation rate; HGG: human gamma globulin; CRP: C-reactive protein (mg/L); Ig: immunoglobulin (mg/L); MMF: mycophenolate mofetil; MP: methylprednisolone; MPO-ANCA: myeloperoxidase antineutrophil cytoplasmic antibodies; p-ANCA: perinuclear antineutrophil cytoplasmic antibodies; RF: rheumatoid factor; RR: relapsing-remitting; SR: sustained remission; WBC: white blood cell.