Mastering the Challenges of Cytopathology Online Post-Test 2001
Below you will find the questions, images and answers from this year's "Master Class". Each image is
followed by one (1) question, with the correct answer indicated in red .
 


Question #1: What is the most likely immuno-peroxidase profile of these cells from the pleural fluid of a 64 year-old man with mediastinal mass?  (Diff-Quik Stain, X200)

a. CEA+, Leu M1+
b. CEA+, EMA+
c. Calretinin+, EMA+
d. Calretinin-, HMB-45+
e. Calretinin-, CLA+

 



Question #2: Cervico-Vaginal smear from a 69 year-old woman. These cells have most likely exfoliated from;  (Papanicolaou Stain, X400)

a. Endocervical adenocarcinoma
b. Cervical erosion with marked regenerative atypia
c. Malignant mixed mesodermal tumor
d. HSV infection
e. Benign endocervix with viral cytopathic effect (possibly adenovirus)

 



Question #3: FNA of a 68 year-old woman with 45-year history of heavy smoking revealed these cells from a cystic lesion in left upper lobe of lung.  What is the most probable diagnosis?
(Papanicolaou Stain, X600)

a. Atypical penumocytic hyperplasia
b. Malignant mesothelioma
c. Bronchioloalveolar carcinoma
d. Marked reactive atypia secondary to anthracosis
e. Metastatic malignant melanoma

 



Question #4: Most likely interpretation of this FNA from a 2cm nodule in the right thyroid lobe of a 37 year-old woman is  (Papanicolaou Stain, X400)

a. Papillary thyroid carcinoma
b. Adenomatoid (hyperplastic) nodule
c. Graves disease
d. Follicular neoplasm
e. Insular carcinoma

 



Question #5: A 62 year-old man S/P radical prostatectomy is being evaluated for gross hematuria. A voided urine sample revealed these cells. Your best interpretation would be;  (Papanicolaou Stain, X400)

a. Recurrent prostatic adenocarcinoma
b. Urothelial carcinoma, high grade
c. Marked reactive atypia secondary to urolithiasis
d. Benign seminal vesicle cells
e. Renal cell carcinoma
 
 



Question #6: Which one of the following is true regarding the urinary bladder lesion in a 72 year-old man with a recent onset of hematuria? [Urine]  (Papanicolaou Stain, X400)

a. Association with BK-virus infection
b. Worst prognosis
c. Always metastatic in origin
d. CLA+, CK- on immunostaining
e. Cytoplasmic cross-striations on EM

 



Question #7: FNA of a 3cm solitary round peripheral lung nodule in a 48 year-old woman revealed these cells.  What’s the most likely diagnosis?  (Papanicolaou Stain, X100)

a. Mucinous adenocarcinoma with desmoplasia
b. Metastatic chrondrosarcoma
c. Pulmonary chondroma
d. Metastatic leiomyosarcoma
e. Pulmonary hamartoma

 



Question #8: All of the following are true about this parotid gland lesion from a 28 year-old man, EXCEPT;  (Papanicolaou Stain, X200)

a. Abundance of myoepithelial nuclei
b. Often bilateral
c. Exclusively limited to parotid
d. Strong male predominance
e. Higher incidence in smokers

 



Question #9: This 55 year-old woman with a 3cm pancreatic tail mass is most likely suffering from; [FNA] (Diff-Quik Stain, X400)

a. Ductal adenocarcinoma
b. Carcinoid/ Islet cell tumor
c. Acinic cell carcinoma
d. Plasmacytoma
e. Metastatic malignant melanoma

 



Question #10: Cervicovaginal smear from a 38 year-old woman.  What’s the most probable diagnosis?  (Papanicolaou Stain, X200)

a. Post-partum atrophy with parakeratosis
b. HSIL, keratinizing type
c. Candida-associated changes
d. Squamous cell carcinoma
e. LSIL

 



Question #11: Breast FNA of a 2 cm soft round nodule from a 34 year-old woman reveals these cells.  What is the most likely interpretation? (Papanicolaou Stain, X200)

a. Mucocele
b. Nipple adenoma with duct ectasia
c. Colloid (mucinous) carcinoma
d. Mucinous metaplasia in fibroadenoma
e. Medullary breast carcinoma

 



Question #12: Cervico-vaginal smear from a 29 year-old woman with prior history of LSIL. What would be the best recommendation after interpretation of this smear? (Papanicolaou Stain, X630)

a. Repeat smear at 3 months
b. No special follow-up needed
c. Endocervical curettage
d. Colposcopy, with cervical biopsy
e. Endometrial biopsy

 



Question #13: Bronchial brush from a 56 year-old man status post-chemotherapy for small cell lung carcinoma reveals these cells.  What is your best diagnosis?  (Papanicolaou Stain, X200)

a. Recurrent/residual small cell carcinoma
b. Bronchial carcinoid
c. Lymphoid hyperplasia
d. Pulmonary hamartoma
e. Reserve cell hyperplasia

 



Question #14: A 59 year-old man, status-post renal transplant develops hematuria with flank pain.  Smear from a voided urine specimen is depicted here.  What is the most likely diagnosis?
(Papanicoloau Stain, X600)

a. BK virus infection
b. Urothelial carcinoma, high grade
c. Malakoplakia of the urinary bladder
d. Reactive atypia 20 immunosuppressive therapy
e. Seminal vesicle cells

 



Question #15: All of the following statements of this FNA of a pancreatic tail cyst from a 45 year-old woman are true, EXCEPT
(Papanicolaou Stain, X100)

a. It’s displaying mucin-positive epithelial cells
b. Cyst fluid typically shows a high amylase content
c. Atypical histiocytes may mimic adenocarcinoma
d. It’s the most common pancreatic cyst
e. It may show extensive necrosis, inflammation and calcification

 



Question #16:  FNA from the neck nodule of an 18 year-old girl revealed these cells.  What is the most likely interpretation?  (Diff-Quik Stain, X40 and 400)

a. Medullary thyroid carcinoma
b. Follicular neoplasm
c. Lymphocytic thyroiditis
d. Insular carcinoma of the thyroid
e. Parathyroid adenoma

 



Question #17: Pleural effusion from a 57 year-old woman with history of papillary thyroid carcinoma showed numerous fragments like the one shown here.  Most likely analysis would be?
(Papanicolaou stain, X200)

a. Adenocarcinoma- most likely bronchioloalveolar type 
b. Malignant mesothelioma 
c. Granulomatous disease 
d. Benign mesothelial hyperplasia
e. Metastatic papillary thyroid carcinoma
 
 



Question #18: A 67 year-old woman presented with a 5cm hard cervical node.  FNA revealed these cells.  What is the most probable source of these cells?  (Diff-Quik Stain, X400)

a. Hodgkin’s disease
b. Anaplastic (Ki-1) lymphoma
c. Metastatic melanoma
d. Metastatic breast carcinoma
e. Anaplastic thyroid carcinoma
 
 



Question #19: A transgastric, ultrasound-guided endoscopic FNA of a pancreatic lesion from a 40 year-old man showed this morphology. What would be the next step in its evaluation?
(Diff-Quik Stain, X400)

a. Evaluate patients’ serum CA19.9
b. Recommend whole body scan for possible primary tumors
c. Cytohistologic correlation with patients’ previous skin melanoma
d. Immunostaining for chromogranin and NSE
e. Flow cytometry

 



Question #20: Cervico-vaginal smear from a 29 year-old, HIV positive woman.  What is the most likely source of these cells?  (Papanicolaou Stain, X400)

a. Endocervical AIS
b. HSIL
c. LSIL
d. Squamous cell carcinoma, glassy type
e. ASCUS, probably an intraepithelial lesion

 



Question #21: Autocyte Prep of voided urine from a 75 year-old man status-post BCG therapy for a low-grade urothelial carcinoma. Based on these cells, the patient is most likely suffering from;
(Papanicolaou stain, X600)

 a. Recurrent urothelial carcinoma, low grade
 b. Urothelial carcinoma, high grade
 c. BCG effect on benign urothelium
 d. Cystitis cystica
 e. Urachal adenocarcinoma

 



Question #22: Stereotactically-guided brain biopsy of a discrete 4th ventricle mass in a 48 yr-old man revealed numerous fragments of the type shown here. How would you like to interpret this lesion?  (H&E stain, X100)

 a. Metastatic papillary adenocarcinoma
 b. Choroid plexus papilloma
 c. Central neurocytoma
 d. Meningioma, fibroblastic type
 e. Ependymoma

 



Question #23: 68 yr-old woman presented with a rapidly enlarging right sided neck mass. Past history was significant for thymic radiation as a child. She is most likely suffering from; [FNA]
(Papanicolaou stain, X400)

 a.  Foreign body giant cell granulomatous inflammation
 b. Cystic metastasis of an occult squamous cell carcinoma
 c. Ruptured branchial cleft cyst
 d. Anaplastic thyroid carcinoma, giant cell variant
 e. Cystic papillary thyroid carcinoma

 



Question #24: Pineal gland stereotactic biopsy in a 35 yr-old man revealed these cells. What is the most probable immune-profile of this lesion based on the illustrated cytomorphology?
(Diff-Quik stain, X 400)

 a. PLAP+, CK-
 b. CK+, LCA-
 c. LCA+, CK-
 d. HMB45+, CK-
 e. GFAP+, CK-

 



Question #25: Transthoracic FNA of a lung lesion in a 53 yr-old woman showed extensive necrosis and clusters of cells, as shown here. She had a skin lesion resected from her neck a year ago. What is the most likely diagnosis?  (Diff-Quik stain, X400)

 a. Metastatic malignant melanoma
 b. Metastatic Merkel cell tumor
 c. Granulomatous lung disease
 d. Malignant lymphoma
 e. Atypical Carcinoid

 



Question #26: Thyroid FNA of a 1.2 cm incidental nodule in a 37 yr-old woman. How would you like to work her up?  (Papanicolaou stain, X400)

 a. Flow cytometry
 b. Serum calcitonin levels
 c. Immunostaining with thyroglobulin
 d. Chest radiographs
 e. Parathyroid hormone levels in the aspirate

 



Question #27: 4 cm firm lobulated breast mass in a 36 yr-old woman with recent surgery for ovarian carcinoma revealed a cellular aspirate as shown here. What is your best interpretation?
(Papanicolaou stain, X40)

 a.  Papillary carcinoma of the breast
 b. Intraductal papilloma
 c. Tubular carcinoma
 d. Metastatic ovarian carcinoma
 e. Fibroadenoma

 



Question #28: Thyroid FNA from a 3 cm dominant nodule in a diffusely enlarged gland of a 26 yr-old woman showed numerous cell fragments. She is most likely suffering from;
(Diff-Quik stain, X100 and 400)

 a. Follicular neoplasm
 b. Insular carcinoma 
 c. Medullary carcinoma
 d. Adenomatoid (hyperplastic) nodule
 e. Papillary thyroid carcinoma

 



Question #29: Biliary brushing from a stenotic area of a 57 yr-old man with obstructive jaundice. He has history of multiple stent placements to relieve his obstruction. Most probable diagnosis is;
(Papanicolaou stain, X400)

 a. Cholangiocarcinoma
 b. Focal marked glandular dysplasia
 c. Reactive atypia secondary to stent 
 d. Benign, with minimal reactive change
 e. Hepatocellular carcinoma

 



Question #30: Cervico-vaginal smear from a 38 yr-old woman with past history of endocervical polyps revealed these cells. How would you manage this patient?  (Papanicolaou stain, X400)

 a.  Endometrial curettage
 b. Colposcopy and endocervical curettage
 c. Repeat smear in 3 months
 d. No follow up needed
 e. Pelvic ultrasound for possible ovarian mass

 



Question #31: FNA of a nontender cystic parotid gland mass from a 42 yr-old man disclosed a cellular aspirate. What is the most likely diagnosis?  (Papanicolaou stain, X200, 400)

 a. Retention cyst
 b. Myoepithelioma, hyaline cell type
 c. Monomorphic adenoma
 d. Oncocytoma
 e. Acinic cell carcinoma
 

 



Question #32: A 2 cm firm round breast mass from a 65 yr-old man showed numerous discohesive cells on FNA. How would you interpret these cytologic findings?
(Papanicolaou stain, X400)

 a. Ductal adenocarcinoma
 b. Gynecomastia
 c. Malignant melanoma
 d. Non-Hodgkin’s lymphoma
 e. Anaplastic myeloma

 



Question #33: Cervico-vaginal smear from a 59-yr-old woman on hormone replacement therapy. What is your best recommendation for her based on these findings?  (Papanicolaou stain, X400)

 a.  Follow up smear in 3 months
 b. No special follow up needed
 c. Colposcopy and cervical biopsy
 d. Endocervical curettage
 e. Endometrial biopsy

 



Question #34:  Stereotactic brain biopsy from a 47 yr-old man with rapidly growing left frontal lobe mass showing involvement of the contralateral cerebral lobe. What is the most likely diagnosis?  (Papnicolaou stain, X630)

 a. GBM, small cell variant
 b. Olidodendroglioma
 c. Metastatic small cell carcinoma
 d. Primary CNS lymphoma
 e. Metastatic melanoma
 
 



Question #35: A 55 yr-old HIV positive man with recent onset of seizures underwent a stereotactic brain biopsy of a right temporal lobe lesion. He is most likely suffering from;
(Diff-Quik stain, X400)

 a. Reactive astrocytosis
 b. Progressive multifocal leukoencephalopathy
 c. GBM, with gemistocytic feature
 d. Metastatic lung adenocarcionma
 e. Oligodendroglioma

 



Question #36: 29 yr old woman with no significant past medical history presented with post-coital bleeding. Based on the cytomorphology illustrated here, the most likely explanation of her complaint is;
(Thin Prep, Papanicolaou stain, X400)

 a. Trichomonas vaginitis
 b. Cervical erosion secondary to infected IUD
 c. Atrophic vaginitis
 d. Squamous cell carcinoma
 e. HSIL, with possible micro invasion

 



Question #37:  63 yr-old man with history of parotid surgery 18 yrs ago, underwent a transbronchial “Wang needle” FNA of a hilar lung mass. How would you interpret this aspirate?
(Diff-Quik stain, X200)

 a. Mucin producing adenocarcinoma
 b. Metastatic adenoid cystic carcinoma
 c. Small cell carcinoma
 d. Pulmonary hamartoma
 e. Atypical carcinoid tumor

 



Question #38: Submandibular FNA of a cystic lesion in a 15 yr-old boy is shown in this slide. The patient is most likely suffering from;
(Papanicolaou stain, X200)

 a. Lymphoepithelial cyst
 b. Mucoepidermoid carcinoma with cystic change
 c. Branchial cleft cyst
 d. Retention cyst
 e. Thyroglossal duct cyst

 



Question #39: 44 yr-old woman underwent an ultrasound-guided FNA of an incidental 1.2 cm nodule in the central region of her left breast. She is most likely suffering from;
(Papanicolaou stain, X400)

 a. Intraductal papilloma
 b. Tubular carcinoma
 c. Fibroadenoma
 d. Atypical ductal hyperplasia
 e. Micropapillary DCIS

 



Question #40: Cervico-vaginal smear revealed these cells from a 66 yr-old woman with post-menopausal bleeding and an endometrial mass. What is the most appropriate interpretation?
(Papanicolaou stain, X400)

 a. Squamous cell carcinoma, glassy cell type
 b. Endometrial carcinoma, adenosquamous type
 c. Malignant mixed mesodermal tumor
 d. Reactive/ reparative cellular changes of the cervix
 e. AGUS, endocervical