English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

An asymptomatic 67-year-old man was referred to our clinic because of an abnormal shadow found on a chest Xray (Picture 1). Chest computed tomography showed the gloved finger sign, thus suggesting mucoid impaction (Picture 2). The lesion was diagnosed to be malignant melanoma by transbronchial lung biopsy (Picture 3). The patient was diagnosed to have malignant melanoma of unknown origin with lung, gastric, and bone metastases. The FDGuptake was also shown in the lung metastasis on positron emission tomography (Picture 4). Multiple nodules (1), and solitary nodules with a miliary pattern, and a lymphangitic carcinomatosis pattern (2), have also been reported as the imaging findings associated with lung metastases of malignant melanoma. However, the gloved finger sign, as observed in this case, is rare. In the present case, metastasis may have occurred via the lumen of the bronchus and then progressed lengthwise, thus resulting in such an image, but no abnormality in the bronchial mucosa was seen on bronchoscopy.

Malignant Lung Melanoma Mimicking Mucoid Impaction on Imaging