Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 3 de 3
Filter
Add more filters










Type of study
Language
Publication year range
1.
Article in English | MEDLINE | ID: mdl-38527730

ABSTRACT

OBJECTIVE: To compare the usefulness of MRI and PET/CT in nodal staging (N) of patients with locally advanced rectal cancer (LARC). MATERIAL AND METHODS: Retrospective study of patients with LARC, who completed their initial staging with PET/CT, between January-20 and March-23. Regional nodes were assessed, and N was determined using both techniques according to TNM criteria. Concordance between MRI and PET/CT was analyzed. The accuracy of both techniques was calculated for those patients who underwent direct surgery. Non-regional pelvic lymph nodes were evaluated by both modalities. RESULTS: Among the 73 patients, 48 were ultimately diagnosed with a locally advanced stage. Of these, 39 underwent neoadjuvant treatment (chemoradiotherapy) followed by surgery, and 9 direct surgery. In 25, the PET/CT extension study revealed distant disease, leading to systemic treatment. Weak concordance was observed between MRI and PET/CT in determining N (k=0.286; p<0.005). Out of 73 patients, 31(42%) exhibited concordance, and 42(58%) showed discordance. In 83% of the discordant cases, MRI overstaged compared to PET/CT, with 17 cases indicating nodal involvement (N+) by MRI and N0 by PET/CT. Diagnostic accuracy was 78% for both techniques. Sensitivity, specificity, positive predictive value, and negative predictive value were 80%, 75%, 80%, and 75% for MRI, and 60%, 100%, 100%, and 67%, for PET/CT. PET/CT identified pelvic metastatic adenopathies in 8 patients that were not visible/doubtful by MRI. CONCLUSIONS: In the initial nodal staging of rectal cancer MRI overstages relative to PET/CT. Both modalities are complementary, PET/CT offers higher specificity and MRI higher sensitivity.


Subject(s)
Lymphatic Metastasis , Magnetic Resonance Imaging , Neoplasm Staging , Positron Emission Tomography Computed Tomography , Rectal Neoplasms , Humans , Rectal Neoplasms/diagnostic imaging , Rectal Neoplasms/pathology , Rectal Neoplasms/therapy , Positron Emission Tomography Computed Tomography/methods , Magnetic Resonance Imaging/methods , Male , Female , Retrospective Studies , Middle Aged , Aged , Lymphatic Metastasis/diagnostic imaging , Adult , Aged, 80 and over , Sensitivity and Specificity , Neoadjuvant Therapy , Lymph Nodes/diagnostic imaging , Lymph Nodes/pathology
2.
Clin Transl Oncol ; 7(7): 324-7, 2005 Aug.
Article in English | MEDLINE | ID: mdl-16185596

ABSTRACT

Tumours that produce metastases in the paranasal sinuses or sphenoidal sinus are rare; the carcinomas of kidney and lung being the most frequent with this type of metastasis. Distant metastases from differentiated thyroid carcinoma are rare and, moreover, when they metastasize, they do so into lung and bone. We report a patient who had a papillary thyroid carcinoma with metastases into the sphenoidal sinus.


Subject(s)
Carcinoma, Papillary/secondary , Paranasal Sinus Neoplasms/secondary , Sphenoid Sinus/pathology , Thyroid Neoplasms/pathology , Carcinoma, Papillary/diagnostic imaging , Carcinoma, Papillary/radiotherapy , Carcinoma, Papillary/surgery , Combined Modality Therapy , Cranial Irradiation , Diplopia/etiology , Female , Headache/etiology , Humans , Hysterectomy , Iodine Radioisotopes/therapeutic use , Leiomyoma/surgery , Magnetic Resonance Imaging , Middle Aged , Neoplasms, Second Primary , Paranasal Sinus Neoplasms/diagnostic imaging , Paranasal Sinus Neoplasms/radiotherapy , Paranasal Sinus Neoplasms/surgery , Radionuclide Imaging , Radiopharmaceuticals/therapeutic use , Radiotherapy, Adjuvant , Thyroid Neoplasms/surgery , Thyroidectomy , Uterine Neoplasms/surgery
3.
Clin. transl. oncol. (Print) ; 7(7): 324-327, ago. 2005. ilus
Article in En | IBECS | ID: ibc-040778

ABSTRACT

Tumours that produce metastases in the paranasal sinuses or sphenoidal sinus are rare; the carcinomas of kidney and lung being the most frequent with this type of metastasis. Distant metastases from differentiated thyroid carcinoma are rare and, moreover, when they metastasize, they do so into lung and bone. We report a patient who had a papillary thyroid carcinoma with metastases into the sphenoidal sinus


Subject(s)
Female , Middle Aged , Humans , Thyroid Neoplasms/pathology , Paranasal Sinus Neoplasms/secondary , Carcinoma, Papillary/pathology , Sphenoid Sinus/pathology , Paranasal Sinus Neoplasms/pathology , Neoplasm Metastasis/pathology , Paranasal Sinus Neoplasms/therapy
SELECTION OF CITATIONS
SEARCH DETAIL
...