What's the difference between excrescence and excrescential?

Excrescence

Definition:

(n.) An excrescent appendage, as, a wart or tumor; anything growing out unnaturally from anything else; a preternatural or morbid development; hence, a troublesome superfluity; an incumbrance; as, an excrescence on the body, or on a plant.

Example Sentences:

(1) The patient, a 12 year-old boy, showed a soft white yellowish mycotic excrescence with clear borders which had followed the introduction of a small piece of straw into the cornea.
(2) Pleomorphism and irregular size of endothelial cells associated with excrescences were noted in case 3 and 4.
(3) 3-D-reconstructions of serial sections of human embryos show that the margin of the lip furrow band is irregular and consists of an abundance of individual epithelial excrescences.
(4) At higher magnification the synoviocytes showed evidence of considerable surface activity (smooth granules, larger cauliflower-like excrescences, thin lamelliform filopodia).
(5) The histopathologic and ultrastructural findings of globular excrescences of the peripapillary region of the optic nerve associated with retinitis pigmentosa were described in a 22-year-old patient who died in a car accident.
(6) Our primarily noninvasive cells form a multilayered base of rounded cells covered with various excrescences and numerous attached dividing and giant cells.
(7) The occurrence of excrescences on proximal dendrites was a characteristic feature of all mossy cells.
(8) These alterations were: (i) a fast transition of rough to smooth morphology macroscopically, and (ii) fading of the cell borders concomitant with the disappearance of cell-membrane excrescences, as seen by scanning electron microscopy.
(9) The operative procedures involved decompression of peripheral nerves in the foot and ankle, consisting of release of soft tissues in the tarsal tunnel and foot or removal of abnormal bony excrescences that were irritating these nerves.
(10) A circular zone devoid of identifiable connective tissue is present at the center of the filiform excrescences.
(11) Free-margin excrescences are the least numerous and occur more frequently in persons older than 40 years.
(12) Peritoneal washings contained malignant cells in 14 of 32 patients (not recorded or obtained in 49), cyst rupture occurred in 25%, surface excrescences in 40%, and adhesions in 46%.
(13) However, thickened cribriform peritoneum usually was not endometriotic (9% of n = 11) and vesicular excrescences were, in every case, reactions to oil-based salpingographic medium (n = 5).
(14) The sympathetic trunk itself (ganglia and cord) was affected only by osteophytes of vertebrae at the lowest thoracic levels; however, bony excrescences due to costovertebral joint arthritis were frequently found impinging on the sympathetic trunk and its rami communicantes at similar frequencies on both sides.
(15) Membrane-delimited vacuoles, lipid droplets and cytoplasmic excrescences appeared in myelinating Schwann cells at 24 hr; demyelinating axons appeared at 48 hr of tellurium exposure.
(16) Mossy fiber endings were identified by their large size and their numerous clear synaptic vesicles with some dense-core vesicles intermingled, and were observed to form synaptic contacts on the large spines or excrescences.
(17) One category, termed short-shaft pyramidal neurons, is characterized by short apical shafts, a large number of thorny excrescences, and densely branched apical and basilar trees.
(18) A calcific eyelid excrescence removed from the patient, studied by x-ray diffraction, was found to consist of crystals of hydroxyapatite.
(19) Comparison with phase contrast light microscopy shows that the fine excrescencies cannot be resolved and therefore lead "artificially" to a more confined aspect of the nucleoid.
(20) A few small excrescences are present on the proximal dendrites.