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EQA

Head and Neck Histopathology National EQA D - Spring 2016






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Case 01

Male 46 years

Recurrent cystic swelling labial LR43 region. ? keratocyst ? lateral periodontal cyst.

Specimen: ODONTOGENIC.




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Case 02

Male 29 years

Three month history of whte linear lesion on lateral tongue bilaterally. Non smoker, no alcohol.

Specimen: oral mucosa.




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Case 03

Female 50 years

Moderately hard 3 x 3 cm non-tender nodular swelling right buccal mucosa. Ultrasound suggestion of ? lymph node.

Specimen: Excision biopsy of right cheek lump.

Macroscopic description:
A lobulated, smooth, encapsulated nodule of 35 x 25 x 18 mm.

Immunohistochemistry:
CK+, CK7+, S100+, actin-.




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Case 04

Male 13 years

Large cyst right anterior maxilla. Calcifying epithelial odontogenic cyst? Cystic ameloblastoma?

Specimen: Maxillary cyst.

Macroscopic description:
Unknown - referred block.

Immunohistochemistry:
n/a.




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Case 05

Female 52 years

Sessile nodule, right buccal mucosa in line with occlusal plane.

Specimen: ORAL.




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Case 06

Female 56 years

Submucosal lump right tongue ?nature.

Specimen: ORAL.




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Case 07

Male 69 years

Parotid mass.

Specimen: PAROTID.




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Case 08

Female 51 years

Right level 2 neck lump, FNA inconclusive. ? lipoma, ? branchial cyst ? thyroid met.

Specimen: NECK LUMP.




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Case 09

Female age unknown

Left submandibular gland increasing in size - unknown cause.

Specimen: SALIVARY - SUBMANDIBULAR GLAND.




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Case 10

Male 23 years

Clinical exam and MRI: 4x4cm cyst separate from submandibular gland and extends up to the floor of the mouth.

Specimen: cystic mass right submandibular region.

Macroscopic description:
Tubular piece of grey/tan tissue 50x23x15mm.

Immunohistochemistry:
none.




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Case 11

Female 5 months

? pleomorphic adenoma right submandibular gland.

Specimen: SALIVARY GLAND.




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Case 12

Female 66 years

Parotid lump.

Specimen: PAROTID.




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Case 13

Male 17 years

Left nasopharyngeal mass with torrential epistaxis.

Specimen: NASOPHARNYGEAL.




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Case 14

Female 67 years

Left nasal polyp with obstruction.

Specimen: PARANASAL SINUSES.




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Case 15

Female 71 years

Large atypical nasal polyp, very vascular with septal deviation, possible defect in skull base ? malignant polyp.

Specimen: PARANASAL SINUSES.




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Case 16

Male 66 years

Lesion in right side of larynx.

Specimen: LARYNX.




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Case 17

Female 42 years

Large left nasal mass arising from maxillary sinus.

Specimen: PARANASAL SINUSES.




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Case 18

Female 71 years

Left nasal polyp attached to inferior turbinate. Base excised in continuity with turbinate, ? lymphoma. Desmin, SMA and caldesmon +. AE1/3, S100 and melan A -.

Specimen: NASAL.

Macroscopic description:
1.

Immunohistochemistry:
As above.




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