DZI20-208: PET ENT

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Topic PET ENT

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Case	Clinical history	Requester	Diagnosis
Case	Clinical history	Requester	Diagnosis
Case 1	38 yo F with PTC. Pretracheal lymph node	Mjf79	FROZEN SECTION DIAGNOSIS #1; (PRETRACHEAL LYMPH NODES): Psammoma bodies are present • consistent with metastatic PTC.
Case 2	28 yo M with mandibular cyst	Mjf79	FROZEN SECTION DIAGNOSIS #1 (LEFT MANDIBULAR LESION): Squamous nonkeratinized epithelial lined cyst with focal mucin • most consistent with dentigerous cyst. Permanent: C/w dentigerous cyst
Case 3	66 yo M "oral inflammation" Midline palate biopsy	Mjf79	FROZEN SECTION DIAGNOSIS #1; (MIDLINE PALATE BIOPSY): Benign papillary squamous hyperplasia. Permanent: MIDLINE PALATE BIOPSY: Markedly inflamed papillary squamous mucosa with pseudoepitheliomatous hyperplasia and squamous nests consistent with sialometaplasia.
Case 4	61 yo M with vocal cord lesion	Mjf79	FROZEN SECTION DIAGNOSIS #1; (RIGHT TRUE VOCAL FOLD): High-grade dysplasia. Permanent: RIGHT VOCAL CORD LESION • BIOPSY: Squamous cell carcinoma in situ.
Case 5	61 yo M with vocal cord lesion. 1st slide: Left vocal fold lesion 2nd slide: Right vocal fold lesion Third slide: left anterior vocal fold lesion	Mjf79	FROZEN SECTION DIAGNOSIS #1; (LEFT VOCAL FOLD LESION): Squamous mucosa with mild to moderate atypia • deferred. FROZEN SECTION DIAGNOSIS #2; (RIGHT VOCAL FOLD LESION): Squamous mucosa with mild to moderate atypia • defer. FROZEN SECTION DIAGNOSIS #3; (LEFT ANTERIOR VOCAL FOLD LESION): Detached parakeratotic squamous epithelium. Permanent of FX1: Squamous mucosa with focal low grade dysplasia. FX2: Squamous mucosa with low grade dysplasia. FX3: Fragments of detached squamous epithelium with focal parakeratosis • cell debris • and bacterial/fungal forms.
Case 6	46 yo F undergoing R maxillectomy • 4.3 cm ill-defined tan-gray gelatinous multicystic mass abutting posterior margin. RS mass to posterior margin frozen.	Mjf79	FROZEN SECTION DIAGNOSIS (RIGHT MAXILLECTOMY • POSTERIOR MARGIN): Adenoid cystic carcinoma.
Case 7	44 yo M with cricoid lesion	Mjf79	FROZEN SECTION DIAGNOSIS #1; (RIGHT POST CRICOID TUMOR): Myxochondroid lesion. Final deferred. Permanent - RIGHT POSTCRICOID TUMOR: Chondrosarcoma • grade 2"
Case 8	35 yo M with PTC • pretracheal lymph nodes	Mjf79	FROZEN SECTION DIAGNOSIS #1 (PRETRACHEAL LYMPH NODE): Three lymph nodes • negative for malignancy (0/3). Thyroid gland tissue with marked lymphocytic thyroiditis.