What's the difference between abscess and ulcer?

Abscess


Definition:

  • (n.) A collection of pus or purulent matter in any tissue or organ of the body, the result of a morbid process.

Example Sentences:

  • (1) One patient developed a subphrenic abscess postoperatively.
  • (2) In the case presented, overdistension of a jejunostomy catheter balloon led to intestinal obstruction and pressure necrosis (of the small bowel), with subsequent abscess formation leading to death from septicemia.
  • (3) Furthermore echography revealed a collateral subperiosteal edema and a moderate thickening of extraocular muscles and bone periostitis, a massive swelling of muscles and bone defects in subperiosteal abscesses as well as encapsulated abscesses of the orbit and a concomitant retrobulbar neuritis in orbital cellulitis.
  • (4) In three of these patients this was associated with the presence of a previously well established abscess cavity.
  • (5) All of the rabbits immunized with FCA developed sterile subcutaneous abscesses.
  • (6) 83 well documented cases of amoebic hepatic abscess, treated in the Philippines between 1967 and 1975, are presented with a view to showing the results of 3 different methods of management and comparing the diagnostic accuracy and overall mortality in 2 separate groups.
  • (7) A series of 241 patients with subphrenic abscess was analysed to seek reasons for the continuing mortality.
  • (8) Perinephric abscess is a rare condition; it may be acute, but can take a chronic and atypical course as a result of incomplete treatment with antibiotics.
  • (9) The authors discuss the results of the diagnosis and treatment of abscesses of the right hepatic lobe which were consequent upon ischemic necrosis; they were encountered after cholecystectomy in 0.15% of cases.
  • (10) We report a rare case of odontogenic abscess, detected while the patient was in the intensive care unit (ICU), which resulted in sepsis and the patient's death due to mediastinitis, skull osteomyelitis, and deep neck cellulitis.
  • (11) A review of 20 cases of pyogenic liver abscesses seen from 1971 through 1976 is presented.
  • (12) Therefore, two-dimensional echocardiographic findings in 22 patients with perivalvular abscess found at surgery or necropsy were compared with those in 24 patients without abscess in a retrospective but blinded study.
  • (13) A case of multiple, subcutaneous, neutrophilic abscesses due to T. rubrum in an immunosuppressed renal allograft recipient is described.
  • (14) A case of tricuspid valve endocarditis with spinal epidural abscess caused by Actinobacillus actinomycetemcomitans is reported in a 74-year-old male with an endocardial pacemaker.
  • (15) Once a liver abscess as a sequel to amebic dysentery was diagnosed and once a megaloplastic anemia with symptoms of a funicular myelopathy following a vitamin B12 deficiency syndrome.
  • (16) Two-thirds of the respiratory infections occurred in the first 3 postoperative months and were generally localized processes (focal pneumonitis, nodule(s), abscess, or empyema).
  • (17) Abscesses were pyogenic in four of the patients and amebic in one.
  • (18) Three patients recovered from their operations, and the other two, both with endocarditis, died postoperatively from causes unrelated to splenic abscess and splenectomy.
  • (19) As with abdominal abscess drainage, a preexisting fistula may be opacified only after several days of catheter drainage and cannot be predicted at the time of initial aspiration.
  • (20) Abdominal computed tomography (CT) scan showed a cystic suprarenal mass that was surgically explored and found to be a retroperitoneal Salmonella abscess.

Ulcer


Definition:

  • (n.) A solution of continuity in any of the soft parts of the body, discharging purulent matter, found on a surface, especially one of the natural surfaces of the body, and originating generally in a constitutional disorder; a sore discharging pus. It is distinguished from an abscess, which has its beginning, at least, in the depth of the tissues.
  • (n.) Fig.: Anything that festers and corrupts like an open sore; a vice in character.
  • (v. t.) To ulcerate.

Example Sentences:

  • (1) Calcium alginate dressings have been used in the treatment of pressure ulcers and leg ulcers.
  • (2) We evaluated the circadian pattern of gastric acidity by prolonged intraluminal pHmetry in 15 "responder" and 10 "nonresponder" duodenal ulcer patients after nocturnal administration of placebo, ranitidine, and famotidine.
  • (3) Exudative inflammatory processes predominate in the ulcer floor.
  • (4) In the past 6 years 26 patients underwent operation for recurrent duodenal ulcer after what was considered to be an "adequate" initial operation.
  • (5) Systemic corticosteroids (i.e., prednisone, prednisolone or methylprednisolone) have improved the survival rate of patients with moderate and severe ulcerative colitis.
  • (6) A leg ulcer in a 52-year-old renal transplant patient yielded foamy histiocytes containing acid-fast bacilli subsequently identified as a Runyon group III Mycobacterium.
  • (7) The authors conclude that H. pylori alone causes little or no effect on an intact gastric mucosa in the rat, that either intact organisms or bacteria-free filtrates cause similar prolongation and delayed healing of pre-existing ulcers with active chronic inflammation, and that the presence of predisposing factors leading to disruption of gastric mucosal integrity may be required for the H. pylori enhancement of inflammation and tissue damage in the stomach.
  • (8) Serum pepsinogen 1, serum gastrin, ABO blood groups, secretor status of ABH blood group substances and behavioral factors were studied in 15 patients with duodenal ulcer and 61 their relatives affected and unaffected to duodenal ulcer.
  • (9) Local injections of contrykal into the ulcer had inhibited proteinase activity and had a positive therapeutic effect.
  • (10) For that reason we determine basal serum pepsinogen I (PG I) levels in 25 ulcerous patients and 75% of their offspring and to a control group matched by age and sex.
  • (11) Useful studies on the relationship between these acute lesions and peptic ulceration are rare.
  • (12) A neodymium YAG (Nd:YAG) laser was evaluated in a dog ulcer model used in the same manner as is recommended for bleeding patients (power 55 W, divergence angle 4 degrees, with CO2 gas-jet assistance).
  • (13) The ulcers on seven of ten legs (70%) treated with Unna's boots and on 10 of 14 legs (71%) treated with elastic support stocking healed.
  • (14) In the controlled wound care group, only three ulcers in three patients achieved complete healing; the remaining 24 ulcers in 20 patients failed to achieve even 50% healing in the stipulated 3-month period.
  • (15) To investigate the possibility that an abnormality of gastric emptying exists in duodenal ulcer and to determine if such an abnormality persists after ulcer healing, scintigraphic gastric emptying measurements were undertaken in 16 duodenal ulcer patients before, during, and after therapy with cimetidine; in 12 patients with pernicious anemia, and in 12 control subjects.
  • (16) The pathomechanism, how C. pylori facilitates the development of peptic ulcer is since hypothetical.
  • (17) Three types of responses were observed: group A, no inhibition of gastric acid secretion occurred in 17 (40%) ulcer patients and in three (18%) controls (p less than 0.05); group B, inhibition of gastric acidity occurred in seven (16%) ulcer patients and in 12 (71%) controls (p less than 0.05), and group C, retarded gastric acid inhibition occurred in 19 (44%) duodenal ulcer patients and in 2 (12%) controls (p less than 0.05).
  • (18) Nine patients with duodenal ulcer were studied before and 2--3 months after proximal gastric vagotomy (PGV).
  • (19) In group III, multiple confluent ulcers were produced in the cheek pouch on one side, with a single ulcer in the contralateral cheek pouch; no drug was applied, and the tissues were prepared for histology.
  • (20) Gastric metaplasia was present in only 8% of 48 bulbar ulcer cases.