We report a case of pulmonary basaloid carcinoma. A 73-year-old man was found in radiological and transbronchial endoscopic exami-nation to have a 40×30mm whitish tumor filling the right bronchus. Bronchial brushing cytology showed numerous tumor cells with a background of massive necrosis. Tumor cells had a hyperchromatic. rather uniform oval nucleus and scanty cytoplasm-cellular features resembling those of small-cell carcinoma. Histological examination showed a basaloid carcinoma with distinctive hyalinized stroma. Among differential diagnoses, the distinction from small cell carcinoma is most important because of the difference in their biological behavior and therapy.
We report a case of stromal sarcoma in a 53-year-old woman. Aspiration biopsy specimens showed atypical spindle cells with thin cytoplasm and irregularly contoured nuclei. Cytoplasmic borders were unclear and nucleoli prominent. We found spindle cell neoplasm without an epithelial component in the operative specimen and diagnosed this as stromal breast sarcoma. Pulmonary metastasis was found one month after surgery.
We report recurrence adenoid cystic carcinoma (ACC) correctly diagnosed by imprint cytology of the biopsy specimen. Tracheal biopsy tissue was very limited, and almost all epithelial cells were exfoliated, so diagnosis could not be made histologically. Imprint cytology showed hyaline balls stained dark or light green, surrounded by clusters of atypical cells. Mucinous balls were seen in the center of atypical cell clusters, indicating ACC recurrence. The man was treated immediately by Algon plasma coagulation via bronchoscopy. Imprint cytology is sometimes more useful than the biopsy specimen itself, and it is recommended to make imprint specimens when a lesion is biopsied.