What's the difference between scan and scar?

Scan


Definition:

  • (v. t.) To mount by steps; to go through with step by step.

Example Sentences:

  • (1) By presenting the case history of a man who successively developed facial and trigeminal neural dysfunction after Mohs chemosurgery of a PCSCC, this paper documents histologically the occurrence of such neural invasion, and illustrates the utility of gadolinium-enhanced magnetic resonance scanning in patient management.
  • (2) By electrophoresis and scanning densitometry, actin was found to constitute about 4% to 6% of the total cellular protein in the human corneal epithelium.
  • (3) Clinical surveillance, repeated laboratory tests, conventional radiology, and especially ultrasonography and CT scan all contributed to the preoperative diagnosis.
  • (4) Tumor shrinkage was documented by A-scan ultrasonography in all but one patient.
  • (5) In choosing between various scanning techniques the factors to be considered include availability, cost, the type of equipment, the expertise of the medical and technical staff, and the inherent capabilities of the system.
  • (6) The method is based on two-dimensional scanning photon absorptiometry on the distal part of the forearm.
  • (7) The results also indicate that small lesions initially noted only on CT scans of the chest in children with Wilms' tumor frequently represent metastatic tumor.
  • (8) CT scan revealed a small calcified mass in the right maxillary sinus.
  • (9) Transmission electron microscopy demonstrated that these blebs were devoid of organelles and microvilli; scanning electron microscopy revealed that the blebs were highly wrinkled and more numerous than were the projections observed in tissue from animals treated with testosterone alone, or in tissue from unoperated controls.
  • (10) We conclude that inflammatory lesions at these sites are not uncommon and that CT scans are diagnostic in the great majority.
  • (11) The skull films and CT scans of 1383 patients with acute head injury transferred to a regional neurosurgical unit were reviewed.
  • (12) For consistent identification of the normal pancreas, preliminary longitudinal scanning at, or near, the mid-line and subsequent oblique scanning in the long axis are necessary prerequisites in delineating the anatomic outline of the pancreas.
  • (13) In scanning of more than 20 Hz frequency, the spectral pattern also reflected the characteristics of the cone system.
  • (14) 3 patients had complete disappearance of the symptoms but did not have a computed tomography scanning control, 3 patients had clinical and CT recovery.
  • (15) The remaining 16 patients were explored for persistent symptoms, an abnormality on GI series, or a mass lesion on CT scan.
  • (16) After permeabilization, with attendant partial extraction, the preparation can be fixed, then viewed by either deep-etch replication, or by high-resolution scanning electron microscopy, with structure of interest revealed in deep view.
  • (17) A television camera scans the spread through microscope optics; computer and special purpose electronics process the video signals to generate run length histograms.
  • (18) Subgingival plaque was sampled and the presence or absence of the above mentioned bacteria assessed with BANA reagent cards (Perio Scan).
  • (19) Ventilation-perfusion lung scans and contrast ascending venography were performed on the sixth to eighth postoperative days.
  • (20) It is often necessary to estimate the dose of radiation to a fetus from a series of CT scans.

Scar


Definition:

  • (n.) A mark in the skin or flesh of an animal, made by a wound or ulcer, and remaining after the wound or ulcer is healed; a cicatrix; a mark left by a previous injury; a blemish; a disfigurement.
  • (n.) A mark left upon a stem or branch by the fall of a leaf, leaflet, or frond, or upon a seed by the separation of its support. See Illust.. under Axillary.
  • (v. t.) To mark with a scar or scars.
  • (v. i.) To form a scar.
  • (n.) An isolated or protruding rock; a steep, rocky eminence; a bare place on the side of a mountain or steep bank of earth.
  • (n.) A marine food fish, the scarus, or parrot fish.

Example Sentences:

  • (1) The authors examined an eye obtained post-mortem from a patient with chronic granulomatous disease of childhood and clinically apparent chorioretinal scars.
  • (2) 14 patients with painful neuroma, skin hyperesthesia or neuralgic rest pain were followed up (mean 20 months) after excision of skin and scar, neurolysis and coverage with pedicled or free flaps.
  • (3) In spite of the presence of scar tissue following rhytidectomy, this procedure has been quite successful because of the rich blood supply in that area.
  • (4) Following a dosage of 300,000 IU streptokinase the lysis was stopped because of severe bleeding from the urethrotomy scar.
  • (5) Differences in scar depression also supported the idea of more stretching in the Dexon group.
  • (6) These findings support the hypothesis that the presence of FSC tissue will have an effect on the persistence of glial scar tissue in a chronic lesion site as well as limit the extent to which a new scar is formed in response to a second injury to the spinal cord.
  • (7) Thirty patients required a second operation to an area previously addressed reflecting inadequacies in technique, the unpredictability of bone grafts, and soft-tissue scarring.
  • (8) The observed clinical findings include scarring of the face and hands (83.7%), hyperpigmentation (65%), hypertrichosis (44.8%), pinched facies (40.1%), painless arthritis (70.2%), small hands (66.6%), sensory shading (60.6%), myotonia (37.9%), cogwheeling (41.9%), enlarged thyroid (34.9%), and enlarged liver (4.8%).
  • (9) To test this hypothesis 30 Wistar rats were subjected to laparotomy and colonic resection and treated with 5-Fluorouracil or Mitomycin C. The bursting strength of the abdominal scars and the colonic anastomotic bursting pressure revealed some interference in the rats treated with 5-Fluorouracil (Student's t test P less than 0.05) but none in the case of Mitomycin C. This preliminary study deserves to be followed up.
  • (10) The patient suffers little inconvenience, has a very small scar and is in hospital only a short time.
  • (11) Skin affected by a burn cancer is scarred, ulcerated, and often appears as erythema ab igne clinically in adjacent skin.
  • (12) Extraction tools included flexible, telescoping sheaths advanced over the lead to dilate scar tissue and apply countertraction, deflection catheters, and wire basket snares.
  • (13) The ensuing scars were similar with respect to scar width and the amount of collagen in the scar.
  • (14) Several stages in its histogenesis may be discerned: I. focal necroses of hepatic cells associated with their invasion with lister Listeria; 2. appearance of cellular elements around the foci of necroses with subsequent formation of granulemas consisting mainly of leucocytes and lymphoid cells; 3. development of necrobiotic changes in the central areas of granulemas with concomitance of exudative processes; 4. organization of necrotic foci with subsequent scarring.
  • (15) This method keeps the fracture closed and leaves no scar.
  • (16) Regarding ureters read as true positives on indirect study, if that ureter has ever shown reflux at any time, or if it drained a scarred kidney specificity was improved to 97% without changing the sensitivity.
  • (17) Both acquired defects were covered by two different cross-finger flap techniques, despite extensive scarring of the adjacent finger.
  • (18) After the completion of rejection reaction, inflammation finally induced scarring or necrosis of the tracheal allograft, resulting in asphyxia or perforation.
  • (19) Autopsy findings showed no scar formation of his testes, and the primary lesion was finally diagnosed to be in the anterior mediastinum.
  • (20) Following this combination procedure the patients were relieved completely of obstructive jaundice and right upper quadrant pain, leaving only small trocar insertion scars made during the short course of hospitalization.