ABSTRACT
Malignant mesenchymal tumors consist of approximately 10% of uterine tumors. The majority of uterine sarcomas are leiomyosarcoma and endometrial stromal sarcoma (ESS). Surgery, radiotherapy, chemotherapy, and hormonal therapy are used for the treatment of ESS. Imatinib mesylate is indicated in the management of gastrointestinal stromal tumor and chronic myelogeneus leukemia. There is an interest to use imatinib mesylate in the treatment of c-kit positive ESS. We reported a case of 42-year-old female low-grade ESS progressed on chemotherapy and presented with objective response to imatinib mesylate. The treatment response was evaluated with FDG PET/CT. Complete metabolic response was detected. FDG PET, a sensitive method for tumor response evaluation on the basis of tumor metabolism changes, is useful for the evaluation of imatinib treatment in low-grade ESS.
Subject(s)
Piperazines/therapeutic use , Pyrimidines/therapeutic use , Benzamides , Humans , Imatinib MesylateABSTRACT
Ewing's sarcoma is one of the most common malignant tumors of the skeletal system in children and young adults. It most frequently stems from the long bones of the extremities. However, though uncommon, extraosseous localization can be seen. Epidural extraosseous presentations are extremely rare. In this case, the authors report on the long-term follow-up of a patient with this well-demonstrated, but uncommon localization, and the initial unique presentation of the patient, which clinically and radiologically mimicked a cervical abscess.
Subject(s)
Epidural Abscess/diagnosis , Epidural Neoplasms/diagnosis , Sarcoma, Ewing/diagnosis , Antineoplastic Protocols , Cervical Vertebrae , Child , Combined Modality Therapy , Diagnosis, Differential , Epidural Neoplasms/drug therapy , Epidural Neoplasms/radiotherapy , Humans , Male , Sarcoma, Ewing/drug therapy , Sarcoma, Ewing/radiotherapy , Thoracic VertebraeABSTRACT
There are nearly 50 PNET cases in the literature with primary renal localization. The mean age for renal PNET is 28 but it can be seen in a wide range between 4 and 69 years. In this atypical localization PNET may be mistaken with a variety of small round cell tumors, particularly with blastema predominant Wilms' tumor and due to its distinctive prognostic and therapeutic features differential diagnosis is very important. Immunohistochemical studies are useful in discriminating PNET from other renal small round cell tumors. Renal PNETs tend to metastasize at early stages and they have a high rate of recurrence. Our case is a 45-year-old male presented with left flank pain and hematuria. In computerized tomography a mass in left kidney was observed and nephrectomy was performed. Histopathologic examination revealed a small round cell tumor with rosettes and pseudorosettes. Immunohistochemically the lesion was diffuse strong positive with CD99 and NSE, negative with LCA, pancytokeratin, vimentin, desmin, smooth muscle actin, chromogranine A and S-100. At the time of diagnosis the pathologic stage of the tumor was T1aN0Mx. The patient did not take any further therapy and in 1-year follow-up no local recurrence or distant metastasize occurred.
Subject(s)
Neuroectodermal Tumors, Primitive/diagnosis , Disease-Free Survival , Hematuria , Humans , Immunohistochemistry , Kidney Neoplasms , Male , Middle Aged , Nephrectomy , Neuroectodermal Tumors, Primitive/surgery , Pain , Tomography, X-Ray ComputedABSTRACT
The hydatid cyst tend to form in the liver or lung but may be found in any organ of the body, including brain, heart, and bones. Thyroid gland involvement is rather rare. Cyst leakage or rupture may even associated with severe allergic reaction to parasite antigens, and may cause anaphylactoid reactions. Herein we reported an additional case of hydatid cyst of the thyroid gland that occurred in a 9-year-old boy who admitted with a painless and cystic thyroid mass. Hemithyroidectomy was performed, and histopathology confirmed the diagnosis of hydatid cyst. Diagnosis of that rare clinical entity is unlikely prior to surgical excision and histopathologic examination. Despite this fact, hydatid disease of the thyroid should be remembered in the differential diagnosis of the cystic thyroid masses, and a high index of suspicion is required.
Subject(s)
Echinococcosis/diagnosis , Echinococcosis/surgery , Thyroid Diseases/diagnosis , Thyroid Diseases/surgery , Thyroidectomy , Child , Humans , Male , Thyroid Diseases/parasitologyABSTRACT
OBJECTIVE: To compare the sputum smear cytology and cell block methods for specimen adequacy, cytology quality and diagnostic accuracy in the diagnosis of lung cancer. STUDY DESIGN: We assessed 2,524 sputum specimens from 768 patients. The specimens were prepared as smears and cell blocks for cytopathologic examination between March 1, 1992, and December 31, 1998. The smear and cell block slides were evaluated both separately and together, and the results were compared with radiologic and histopathologic diagnoses. RESULTS: The sensitivity of the smear method was 69.4% and specificity was 99.5%. The sensitivity of the cell block method was 84.4% and specificity, 100%. The sensitivity of the smear and cell block together was 87.6% and specificity, 99.5%. CONCLUSION: The cell block method increases the sensitivity and specificity of sputum cytology, and when smear and cell block slides are evaluated together, sensitivity reaches its highest value. Therefore, application of smear and cell block methods together seems most useful in the diagnosis of lung cancer.
