| aberrant ganglion | A collection of nerve cells sometimes found on a posterior spinal nerve root between the spinal ganglion and the spinal cord. (05 Mar 2000) |
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| aberrant goiter | Enlargement of a supernumerary thyroid gland. Synonym: struma aberrata. (05 Mar 2000) |
| aberrant haemoglobin | A mutant Hb that functions abnormally. Compare: variant haemoglobin. (05 Mar 2000) |
| aberrant obturator artery | See: pubic branch of inferior epigastric artery. (05 Mar 2000) |
| aberrant ventricular conduction | Abnormal intraventricular conduction of a supraventricular beat, especially where surrounding beats are normally conducted. Synonym: ventricular aberration. (05 Mar 2000) |
| superior aberrant ductule | A diverticulum from the head of the epididymis. Synonym: ductulus aberrans superior. (05 Mar 2000) |
| inferior aberrant ductule | A narrow, coiled tubule frequently connected to the first part of the ductus deferens or to the lower part of the ductus epididymitis. Synonym: ductulus aberrans inferior, Haller's vas aberrans. (05 Mar 2000) |
| lateral aberrant thyroid carcinoma | <tumour> A cervical nodule of thyroid carcinoma situated outside the thyroid gland, formerly thought to arise from ectopic thyroid tissue but now believed to be metastatic from an occult carcinoma within the gland. (05 Mar 2000) |