Discussion
Diagnosis With Brief Discussion
- Diagnosis
- Sclerosing pneumocytoma
- Radiologic Findings
- Chest PA taken in 2020 showed a lobulated contour mass in the left mid lung zone. The mass was noted in Chest PA and smaller in 2012. On CT, the mass increased from 2.2cm to 3.8cm. The mass showed a dumbbell shape and with GGO halo in the lateral portion. There were satellite nodules in LUL. Satellite nodules in LUL increased in size and number.
- Brief Review
- Left upper lobectomy was done. There were multiple sclerosing pneumocytoma (40) without involvement of bronchial resection margin. There was no regional lymph node metastasis.
Sclerosing pneumocytoma (previously sclerosing hemangioma) is a lung tumor, arising from type II pneumocytes. This tumor usually occurs in middle-aged adults, with a male-to-female ratio of 1:5. The morphologic characteristics of sclerosing pneumocytoma include a solitary juxtapleural mass, circular or ovoid in shape, with smooth margins. The occurrence of multiple tumors is rare.
A case of multiple sclerosing hemangiomas in the right lung was reported (2005). A case of sclerosing pneumocytoma as clustered lung nodules with foci of ground-glass opacity localized in the right upper lobe was reported (2014). In a study of 76 patients with sclerosing pneumocytoma, 4 patients (5.3%) had two lesions, and two patients (2.6%) had >3 lesions (2015). A case of the main nodule with surrounding clustered satellite nodules mimicking active pulmonary tuberculosis in the right upper lobe was reported (2018).
- References
- Shin SY, Kim MY, Lee HJ, Oh SY, Jang SJ. Clustered pulmonary sclerosing pneumocytoma in a young man: a case report. Clin Imaging. 2014 Jul-Aug;38(4):532-535. doi: 10.1016/j.clinimag.2014.01.016. Epub 2014 Feb 7. PMID: 24667045.
Min A Lee, Tae Jung Kim, Joungho Han, Kyung Soo Lee. Pulmonary sclerosing pneumocytoma with multiple satellite nodules mimicking tuberculosis. Precision and Future Medicine 2018;2(2):76-78 https://doi.org/10.23838/pfm.2018.00051
Hishida T, Yoshida J, Nishimura M, Ishii G, Nishiwaki Y, Nagai K. Multiple sclerosing hemangiomas with a 10-year history. Jpn J Clin Oncol. 2005 Jan;35(1):37-9. doi: 10.1093/jjco/hyi002. PMID: 15681603.
Devouassoux-Shisheboran M, Hayashi T, Linnoila RI, KossMN, Travis WD. A clinicopathologic study of 100 cases ofpulmonary sclerosing hemangioma with immunohistochemical studies: TTF-1 is expressed in both round andsurface cells, suggesting an origin from primitive respiratory epithelium. Am J Surg Pathol 2000;24:906-16.
Shin SY, Kim MY, Oh SY, Lee HJ, Hong SA, Jang SJ, Kim SS. Pulmonary sclerosing pneumocytoma of the lung: CT characteristics in a large series of a tertiary referral center. Medicine (Baltimore). 2015 Jan;94(4):e498. doi: 10.1097/MD.0000000000000498. PMID: 25634202; PMCID: PMC4602969.
- Please refer to
- Case 1245 Case 1118 Case 1035 Case 1023
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- Keywords
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