Presentation
Non-tender mobile lump in the left elbow.
Patient Data
A well-defined oval lesion measuring 2.2 x 1.6 cm is seen in the medial aspect of the left cubital fossa, it shows solid and cystic components, and it appears hypoechogenic with minimal intralesional vascularity.
There is evidence of a well-defined oval-shaped soft tissue mass lesion in the medial aspect of the flexor aspect of the elbow joint, measuring approximately 2 x 1.5 x 2.2 cm maximum 3 dimensions, it appears isointense on T1-weighted images, heterogenous on T2-weighted images with cystic lesions and hypointense capsule, hyperintense on STIR sequences, along the course of the median nerve. IV contrast administration shows some heterogenous enhancement.
Features are highly suggestive of median nerve schwannoma.
Jupiter cyclone appearance means the great red spot.
Photo courtesy: NASA https://www.nasa.gov/feature/goddard/2021/hubble-shows-winds-in-jupiters-great-red-spot-are-speeding-up
Case Discussion
Jupiter cyclone appearance is a descriptive imaging feature (and not a "sign" per se) of a probable benign nerve sheath tumors such as schwannoma or neurofibroma and this is a part of Rorschach radiology.
Acknowledgement: Xavier Jean Dominique Halbi.
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