Case 7 - cpo-media.netcpo-media.net/ECP/2019/Congress-Presentations/75... · Nasal...
Transcript of Case 7 - cpo-media.netcpo-media.net/ECP/2019/Congress-Presentations/75... · Nasal...
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Case 7
PathologySylvia Höller
DÖSAK Registry
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Clinical picture
• 4 year old girl
• Permanent rhinorrhea, watery eyes, extensive snoring andexclusive mouth breathing
• Hypertrophic polyps and purulent conjunctivitis repeatedlydiagnosed
• Half a year later a flatened nasal pyramid appeared andimaging studies were initiated
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cortrans
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sag
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T2T1 T1 KM
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Radiology
CT scan and MRI imaging:
• Complete congestion of the nasal cavity
• Compression of the left orbita
• Infiltration of the anterior cranial fossa
→ Local agressive growth, but focal sclerotic rim present
→ MRI resembling cartilarginous tumor with atypical homogeneousuptake of contrast media
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Histology of thebiopsy
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Ki67
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Histology
• Spindle cell proliferation with quite some nuclearpleomorphism
• Areas of new bone and cartilage formation
• Spread below respiratory mucosa
→Worrisome «atypia» and osteoid formation→ osteosarcoma? → consultation of an expert in osteosarcoma
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Expert diagnosis: Suggestive of osteosarcoma
but «a kind of weird»
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Histology of thecurretage
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Nasal ChondromesenchymalHamartoma
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Two years after diagnosis she is fine with no signsof recurrence
Follow up
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Nasal Chondromesenchymal Hamartoma
• Rare, predominantly pediatric nasal lesion (but can also affectadults!)
• Reminiscient with the chondromesenchymal hamartoma of thechest wall
• Radiology often suggests malignancy: poorly defined, aggressive growth pattern, contrast media uptake and intracranial extention
• Mixture of stromal and chondroid areas (no atypical mitosis!), canbe very cystic (DD meningoencephalocele)
• May be associated with a germline DICER1 loss of functionmutation (pleuropulmonary blastoma)
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Differential diagnosis: Osteosarcoma
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Data from our Basle registry for bone tumours: osteosarcoma
• Osteosarcomas from 1976 to date: n=1574
• Localisation:
• nose, sinus maxillaris, orbita, fossa canina, os zygomaticum andpalatinum→ 53 cases
• Age: median and average 41 yrs (6 to 92 yrs)
• Distribution: sinus maxillaris (21) > os palatinum (9) > orbita (7)
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Caveats
Age: only one case under 10 years of age
Youngest child was 6 years old: OS in the orbita postradioation therapy after retinoblastoma
Localisation:
only 4 cases in the nose (range: 13-26 yrs)
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• Cooperative Osteosarcoma Study Group (COSS): 27 children
• 26 long bones, 1 orbit (secondary to radiation therapy for retinoblastoma)
• French cancer society: 15 children
• 14 long bones, 1 rip
• The St. Jude Children's Research Hospital: 8 children
• 6 long bones, 1 maxilla (low grade), 1 orbita (but from 1976 with no pathology review and no clinical information (secondary?))
Literature
Three main studies about osteosarcoma in very young children(<5 years)
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Take home message I
Be very cautious with the diagnosis of an
osteosarcoma in the nose
in a child under the age of 10 years
!
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When you deal with a lesioncomposed of spindle cells, bone and
cartilage formation in the nose, consider nasal chondromesenchymal
hamartoma in your differential diagnosis
Take home message II
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CHONDROMESENCHYMAL HAMARTOMAAdditional cases from the registry
• Newborn, boy, right nasal cavity, cartilarginous tumor of unknowndignity
• 56 yrs, man, ethmoid bone, sarcoma
• Newborn, boy, chest wall, aneurysmal bone cyst