Biomedical subjects

Maria-Sultana Mihailovici

Publications and source records attributed to Maria-Sultana Mihailovici.

5 recordsLinked to original sources

PubMedDate not supplied

[Synchronous colonic cancers].

UNLABELLED: The aim of this study is to present the difficulty of an accurate preoperative diagnostic for synchronous colonic cancers and to sustain the necessity of total colectomy. A retrospective study was carried out on 16 patients hospitalized in the IIIrd Surgical Unit, St. Spiridon Hospital, U.M.Ph. "Gr.T.Popa" Iasi between 1990-1999. The surgical procedures were: extensive colectomy with ileo-sigmoid anastomosis, segmentary colectomy, total colectomy with ileo-rectal anastomosis. RESULTS: Perioperative mortality: zero; uneventfully recovery for all patients. A metachronous lesion 3 years after the first operation was detected in one patient; postoperatively, one patient developed occlussion 3 months after, requiring re-operation. CONCLUSIONS: 1. synchronous colonic cancers are closely related with a genetic instability of the colonic mucosa; 2. total colectomy is a safe manner to prevent metachronous lesions.

Adenocarcinoma↗

PubMedDate not supplied

[Diagnosis of gastric cancer on endobiopsies using the WHO classification].

Gastric cancer (GC), one of the most frequent malignancies can be early detected on endobiopsies. Our aim was to evaluate histologically the GC on endobiopsies, using WHO 2000 and Lauren classifications. The study included 2424 gastric endobiopsies, routine processed; sections stained with HE, Giemsa, PAS and AB. GC was diagnosed in 451 cases (19%), mostly in men (311 cases--69%). The highest incidence was in 60-69 year-old aged patients (34%). Using Lauren classification, 279 cases were included in diffuse type (62%), 167 intestinal-type (37%) and 5 (1%) mixed type. Each of these three types were also histologically analyzed considering the WHO classification. We pointed out that GC can be diagnosed histologically on endobiopsy specimens, although it is difficult to diagnose the GC--mixt type, due to reduced size of endobiopsies. Lauren classification (including the two major types: diffuse and intestinal) is very useful, especially if correlated with histological criteria of WHO classification.

Adenocarcinoma↗

PubMedDate not supplied

[Anal squamous cell carcinoma synchronous with rectal adenocarcinoma].

Most often colorectal carcinoma occurs single; synchronous multiple carcinomas usually develop at widely disparate sites. We report the case of a 75-year-old male, accusing rectal bleeding, disturbances in bowel transit and weight loss. The rectoscopy examination revealed a fungating, bleeding tumor located 5 cm from anal verge. Pathological diagnostic of the endo-biopsy was ulcerated moderate differentiated adenocarcinoma. Patient underwent surgical amputation of the rectum with lymphadenectomy. Microscopical examination of the surgical specimens confirmed the presence of the adenocarcinoma adjacent to a squamous cell carcinoma, moderate differentiated, with reduced keratinization, infiltrative. Also, 2 from the 7 lymph nodes presented squamous cell carcinoma metastases. The most important differential diagnostic is a rectal adenosquamous carcinoma. Prognostic depends on stage of the disease, generally being worse than of the corresponding adenocarcinoma, and can be improved by radio- and chemotherapy.

Adenocarcinoma↗

PubMedDate not supplied

[Systemic amyloidosis. Case report].

The amyloid deposition in skeletal muscle is well known but a rare occurrence. The study reflects the morphoclinical picture in cardiac amyloidosis in a 51 years old woman, having progressive cardiac failure and sinus node disease. A complete clinical evaluation of the patient showed a concomitant malignancy, plasma-cell myeloma. Muscle-cutaneous biopsy and a sulfated blue alcian staining was routinely performed to screen for amyloid. Histologically, amyloid was confirmed by the presence of deposits in the interstitium around perivascular region, or rarely, in the endomysial region. Focally, the muscles showed a small group atrophy and scattered regenerating muscle fibers and some degenerating myofibers. Generally, is known that prevalence rate of amyloid myopathy in muscle biopsy specimens is low (0.004%), and, as in our case, only a minority of patients have multiple myeloma, as well.

Amyloidosis↗

PubMedDate not supplied

[New methods in cancer research--tissue microarray].

Cancer research advances imperiously requested for a new reliable method for biomarker tissue localization study, with standardized experimental conditions, reproducible, fast and at low-prices. Tissue Microarrays technique is the most important discovery in histopathology techniques in the last decade. It mainly consists in bringing and precisely organizing in a single paraffin block of hundreds of micro-cylinders from different blocks. Sections from this new block may be processed using almost all analyses (immunohistochemistry, in situ hybridization). The clear sightedness of those who developed this technique is proved by its rapid acceptance and integration in basic research, prognostic factors oncology and drugs discovery, reflected in hundreds of publications.

Biomarkers, Tumor↗