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Renal hydatid cyst: urinary cytological diagnosis.
Noi I, Cohen I, Loberant N.
Department of Radiology, Western Galilee Regional Hospital, Nahariya, Israel.
Echinococcal disease is endemic in many areas of Asia, Europe, South America, the Near East, Australia, and New Zealand. Hepatic and pulmonary cysts are the most common presentation. Isolated renal hydatid cyst is an uncommon presentation of echinococcal disease, since renal involvement occurs in only 2-3% of cases. We present the case of a young man with renal colic, in whom the diagnosis of renal hydatid disease was established cytologically. Urine cytology, performed because of persistent hematuria, revealed scolices of Echinococcus granulosus and prompted further imaging investigation, and, ultimately, surgical treatment.
Publication Types:
PMID: 7774496 [PubMed - indexed for MEDLINE]
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Unexpected cytological diagnosis of two cases of echinococcosis.
Giuffre G, Mondello P, Inferrera A, Furchi A, Gentile HM, Speciale G.
Dipartimento di Patologia Umana, Universita degli Studi di Messina.
The Authors report two cases of hydatid cysts localized in the soft tissues of the thigh and in para-renal region respectively. In both cases the cystic nature of the lesion was revealed by echography while the common serologic and hematologic preoperative tests did not show pathologic values. The working diagnosis was traumatic or developmental lesion and the patients were undergone to fine needle aspiration (FNA) cytology which permitted to make the unexpected diagnosis of hydatid cysts. The enzyme linked immunosorbent assay for echinococcus, done at the time in monitoring the disease, was positive only in one case. Although the routine use of FNA cytology for the diagnosis of echinococcosis should be discouraged, this procedure may represent a real aid in the definitive diagnose of clinically unsuspected hydatid cysts.
Publication Types:
PMID: 8170723 [PubMed - indexed for MEDLINE]
Comment in:
Aspiration cytology of echinococcus oligarthrus. A case report.
Kini U, Shariff S, Nirmala V.
Department of Pathology, St. John's Medical College, Bangalore, India.
BACKGROUND: Fine needle aspiration cytology is a useful technique in the diagnosis of several parasitic infections. The present case highlights the aspiration cytology findings in a case of Echinococcus oligarthrus infection, a rare variant of the Echinococcus species affecting humans. To the best of our knowledge, this is the first case report on the cytology of E oligarthrus in English. CASE: A submandibular swelling developed in a 14-year-old male. A mistaken diagnosis of Cysticercus cellulosae was made on the first aspirate and of a hydatid cyst (Echinococcus granulosus) on the second aspirate. A diagnosis of E oligarthrus was made on subsequent histopathologic examination of the excised lesion. CONCLUSION: This seems to be the first case report in English of the cytomorphology of E oligarthrus on fine needle aspiration cytology with histopathologic confirmation.
Publication Types:
PMID: 9100796 [PubMed - indexed for MEDLINE]
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Fine-needle aspiration diagnosis of hydatid cyst.
Firpi RJ, Lozada LR, Torres EA, Villamarzo G, Lobera A.
Department of Medicine, University of Puerto Rico Medical School, San Juan 00936-5067.
The diagnosis of hydatid disease outside endemic areas is usually not suspected. Hydatid cysts in imaging studies can be confused with hepatic tumors, abscesses, cystadenomas, liver cysts or other lesions. Serology is the usual confirmatory test, but cytologic diagnosis has been described. Aspiration of the cysts has not been employed as a routine diagnostic method for fear of spillage and anaphylactic reactions. We report a case of unsuspected hepatic echinococcosis that was confirmed by fine-needle aspiration of the lesion and cytologic confirmation without complications.
Publication Types:
PMID: 10461319 [PubMed - indexed for MEDLINE]
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Hydatid cyst in soft tissues mimicking malignant tumors. Diagnosis by fine needle aspiration cytology.
Saenz-Santamaria J, Catalina-Fernandez I, Fernandez de Mera JJ.
Department of Pathology, Hospital Infanta Cristina, Avenida de Portugal s/n, 06080 Badajoz, Spain. [email protected]
OBJECTIVE: To evaluate the role of fine needle aspiration cytology in the diagnosis of soft tissue hydatid cysts. STUDY DESIGN: Five cases of soft tissue hydatid cyst were diagnosed primarily by fine needle aspiration cytology. RESULTS: In all cases, large fragments of acellular material, finely lamellated, were found. There were no complications related to fine needle aspiration, and histologic studies confirmed the diagnosis of hydatid cyst. CONCLUSION: When acellular, laminated fragments suggestive of a laminated layer are identified on smears, hydatid cyst should be considered in the differential diagnosis, even in atypical locations and in the absence of hooklets, protoscolices or both.
Publication Types:
PMID: 12789911 [PubMed - indexed for MEDLINE]
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Hydatid cyst: primary diagnosis by fine-needle aspiration biopsy.
Ascoli V, Teggi A, Gossetti F, Nardi F.
Dipartimento di Biopatologia Umana, Universita La Sapienza, Rome, Italy.
Two cases of soft-tissues echinococcosis are presented in which the definitive diagnosis was established by identifying laminated layer remnants on fine-needle aspiration smears. Large polygonal pieces of acellular material with delicate parallel striations were seen, while neither scolices nor hooklets were found. The cases reported most likely represent the occurrence of sterile hydatid cysts. A diagnosis of echinococcosis should be considered when fragments suggestive of laminated layer are identified on smears, even in unusual sites and without evidence of hooklets and/or scolices.
Publication Types:
PMID: 2323296 [PubMed - indexed for MEDLINE]
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Echinococcosis (hydatid disease) in Missouri: diagnosis by fine-needle aspiration of a lung cyst.
Ingram EA, Helikson MA.
Department of Pathology, University of Missouri, Columbia 65212.
Echinococcus granulosus was diagnosed by fine-needle aspiration cytology of a lung cyst in a 6-yr-old white female in central Missouri. No adverse reaction occurred following the aspiration. The cytologic sample yielded clear fluid containing numerous clearly identifiable protoscoleces diagnostic for echinococcosis using routine PAP staining. Since hydatid disease is extremely uncommon in the Midwest, it had not initially been considered in the differential diagnosis. The infection was probably not indigenous to Missouri, since the patient lived the first 3 1/2 yr of life in Alaska, where the organism is endemic. This can only be speculative, however, since echinococcal organisms are found in wildlife in the Midwest.
Publication Types:
PMID: 1954835 [PubMed - indexed for MEDLINE]
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Fine needle aspiration biopsy of hydatid cysts.
von Sinner WN, Nyman R, Linjawi T, Ali AM.
Department of Radiology, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia.
Fine needle aspiration biopsy (FNAB) was performed in 31 patients with hydatid disease by 15 operators in 41 biopsy events during the period 1983-93. The FNABs were unintentionally done without prior clinical suspicion of hydatid cysts (HCs) in 18 patients and intentionally (with prior clinical suspicion of HC) in 13 patients for pathologic confirmation required for specific therapy. The FNABs were performed with the guidance of fluoroscopy (n = 7), CT (n = 14) or ultrasonography (n = 10). The material included both closed, open and ruptured HCs from different locations such as abdomen, thorax, spine and bone. Pathologic confirmation of HC was achieved by recovering and demonstrating parasitic material in the specimen. In only 7 of 31 patients were the specimens diagnostic at the initial interpretation. This emphasizes the importance of alerting the pathologist about the possibility of hydatid disease. In 25 of 31 patients (81%) no biopsy reactions occurred. In 5 patients minor allergic reactions occurred and 3 had filling of air into intrathoracic cysts not requiring therapy. One patient, with a FNAB of a liver HC, had a sudden severe drop in blood pressure, which required anti-shock therapy with subsequent recovery without sequelae. All complications occurred with non-intentional biopsy of HC. Suggestions for diagnostic and therapeutic management of patients with HC and advice to avoid or limit potential complications or spread of disease are given where a planned biopsy is necessary for appropriate and effective therapy.
PMID: 7710798 [PubMed - indexed for MEDLINE]
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