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Companion shadow - right clavicle and scapula

Case contributed by Mirna Al-Khouri Long
Diagnosis probable

Patient Data

Age: 85 years
Gender: Male

There is a shadow overlying the right hemithorax parallel to the right scapular medial border, this is likely to represent a companion shadow and is of no clinical significance. Dual chamber pacemaker in situ.

There is in addition a right clavicular companion shadow, while it is absent on the left.

Case Discussion

The absence of a clavicular companion shadow may be normal or may signify adjacent abnormality such as supraclavicular lymph nodes.

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