Satellite Nodule

A minute tumour cell nest—measuring ±0.05 mm in diameter—which may be seen in the reticular dermis, fat, or vessels in a person with melanoma, and separated therefrom; melanomas with satellite nodules have a far worse prognosis than melanomas of similar thickness without satellites
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
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There was no satellite nodule or palpable regional lymph node and systemic examination was within normal limit.
Two other satellite nodules with similar characteristics were observed, one at the superior pole of the lesion and another at the inferior pole of the lesion, measuring 4 mm and 3.8 mm respectively.
On examination there was a large, fixed spherical mass on the left parietal-posterior scalp with central ulceration and multiple subcutaneous satellite nodules abutting the left pinna.
From another point of view, cavities of the MDR group mostly appear as cavitary consolidation while in the NTM group as cavities with satellite nodules, with significant difference between these two groups (Fig.
In addition, a linear margin, satellite nodules, bronchial wall thickening, consolidation, and ground-glass attenuation were significantly more frequent in benign cavitary lesions than in malignant ones.
For purposes of staging, satellite nodules, multifocal primary cholangiocarcinomas, and intrahepatic metastases are not distinguished and are considered multiple tumors.
Limb-sparing surgery can be performed where a tumour can be excised with a surrounding wide margin of tissue that contains microscopic 'satellite nodules', which would lead to tumour recurrence if not removed.
Multiple satellite nodules occur in 10 to 15% of all cases.
Tuberculomas commonly appear as smooth maginated round nodules on CT with calcification, cavitation and satellite nodules sometimes seen.
The tumor may be diffusely infiltrative with indistinct borders, and small satellite nodules can also be present.[4] Microscopic examination reveals malignant cells invading liver parenchyma and vasoformative areas with vessels lined by malignant endothelial cells.

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