DZI20-134

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Request type Study

Subspecialty Pulmonary Pathology

Set Frozens Study Set 2020

Topic PP

Presenter Ns495 (user needs to log in to Learn Pathology)

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Case	Clinical history	Requester	Diagnosis
Case	Clinical history	Requester	Diagnosis
Case 1	19 yo M with large right subpectoral mass with numerable bilateral pulmonary nodules	null	Small round blue cell neoplasm (permanent dx: synovial sarcoma • monophasic spindle-cell type)
Case 2	56 yo M with right lower lobe lung tumor	null	High-grade malignancy • favor carcinoma (permanent dx small cell carcinoma)
Case 3	72 yo F with R apical lung nodule	null	Fibroelastotic scarring; negative for malignancy
Case 4	59 yo F with 3.5 cm left upper lobe lung mass	null	Lung parenchyma with extended alveolar spaces with mucin and a focus of atypical epithelium lining alveolar walls away from margin
Case 5	41 yo F never smoker with 6.5 cm right upper lung mass invading the mediastinum and extending to right hilum with mediastinal adenopathy and enlarged supraclavicular lymph node	null	Atypical cells suggestive of non-small cell carcinoma (permanent dx: classic Hodgkin lymphoma)
Case 6	56 yo F with lung nodule	null	Atypical pneumocyte proliferation associated with lymphoplasmacytic inflammation (permanent dx: adenocarcinoma)
Case 7	70 yo F with lung nodule	null	Adenocarcinoma • 0.5 cm from parenchymal margin
Case 8	Hemothorax; pleural biopsy	null	Fibrous and organizing pleuritis with abundant acute inflammation. No granulomas. No evidence of malignancy
Case 9	68 yo M with RUL mass	null	Small cell carcinoma with significant crush artifact
Case 10	49 yo M with anterior mediastinal mass	null	Poorly differentiated carcinoma
Case 11	72 yo F with 1.7 cm solitary lung nodule; former smoker • history of breast cancer	null	Organization pneumonia; negative for malignancy
Case 12	64 yo F with lung nodule	null	Carcinoid tumor
Case 13	71 yo M with large left hilar mass and mediastinal lymphadenopathy; 4R lymph node	null	Metastatic poorly differentiated carcinoma (permanent dx: small cell carcinoma)
Case 14	65 yo M with LLL mass; 4R lymph node	null	Positive for neoplasia with epithelioid features (permanent dx: Metastatic poorly differentiated adenocarcinoma consistent with lung primary)
Case 15	57 yo M with tracheal mass (no prior biopsies)	null	Small focus of adenoid cystic carcinoma present in the adventitia
Case 16	72 yo M with pleural effusion; pleural biopsy	null	No definitive malignancy • some atypical cells • favor reactive mesothelial cells; chronic inflammation (permanent dx: chronic pleuritis with multiple lymphoid follicles and mesothelial hyperplasia)
Case 17	75 yo F with lung nodule	null	Organizing pneumonia with chronic and histiocytic inflammation with atypical pneumocytes • favor reactive atypia (Permanent dx: Fibroinflammatory nodule; there is no evidence of malignancy)
Case 18	58 yo F with lung nodule	null	Low grade spindle cell neoplasm (Permanent dx: Smooth muscle neoplasm; no over features of malignancy; may represent benign pulmonary leiomyoma which is exceptionally rare; metastasis from other sites including cutaneous and uterine origins should be clinically excluded; benign metastasizing leiomyoma of the uterus cannot be excluded)
Case 19	15 yo M with anterior mediastinal mass	null	Germ cell tumor (Permanent dx: yolk sac tumor)