대한흉부영상의학회 Korean Society of Thoracic Radiology

Discussion

Diagnosis With Brief Discussion

Diagnosis

Pulmonary sclerosing pneumocytoma

Radiologic Findings

Fig 1. CT scans reveals a left breast cancer and a tiny nodule in RLL.
Fig 2. Follow up CT after 1year shows an increase in size of nodule with mild enhancement (average HU 40) in RLL.
Fig 3. RLL wedge resection was performed with no residual tumor.
Fig 4. Follow up CT after 6 months shows newly appeared tiny nodule in the RLL op. site.
Fig 5. Follow up CT after 6 months shows more increase in size.
The patient underwent RLL wedge resection again and diagnosed by sclerosing pneumocytoma.

Brief Review

Typically presents in middle age (30-50 years of age). There is a recognized female predilection. Most patients are asymptomatic. Symptoms, if present, includes hemoptysis, cough, chest pain (maybe pleuritic) and breathlessness. Originates from undifferentiated respiratory epithelium, most likely type II alveolar pneumocyte. Recurrence after resection is very rare. Three cases have been reported, all involving wedge resection and occurring years after the index surgery.

Please refer to

Case 1118, Case 1035, Case 1023, Case 268, Case 168, Case 148, Case 142,

KSTR imaging conference 2021 Summer  Case 8,

References

Keywords