Pulmonary Pseudoneoplasms

2010 ◽  
Vol 134 (3) ◽  
pp. 417-426 ◽  
Author(s):  
Eunhee Yi ◽  
Marie-Christine Aubry
Keyword(s):  
Differential Diagnosis ◽  
Clinical Diagnosis ◽  
Lymphoid Hyperplasia ◽  
Surgical Pathology ◽  
Data Sources ◽  
Thoracic Cavity ◽  
Organizing Pneumonia ◽  
Sclerosing Mediastinitis ◽  
Diagnosis Of Cancer ◽  
Inflammatory Pseudotumors

Abstract Context.—Not uncommonly, a surgical pathologist will be requested to review excised material, with a clinical diagnosis of cancer, in which no malignancy can be identified. Often, sampling may be the issue. However, different nonneoplastic processes may mimic cancer clinically and not be recognized histologically. These are commonly referred to as pseudoneoplasms and can involve the lung, pleura, and mediastinum. Objective.—To review the most commonly encountered pseudoneoplasms of the thoracic cavity in surgical pathology and discuss the main differential diagnosis. Data Sources.—Literature and personal review of cases with focus on inflammatory pseudotumors of the lung, organizing pneumonia, nodular lymphoid hyperplasia, apical cap, round atelectasis, and sclerosing mediastinitis with its pulmonary counterpart, hyalinizing granuloma. Conclusions.—When reviewing specimens that appear nondiagnostic for malignancy, it is important to consider one of these pseudoneoplasms in the differential diagnosis as they may explain the clinical and radiologic information.

Update on Nonneoplastic Pulmonary Lymphoproliferative Disorders and Related Entities

2010 ◽  
Vol 134 (5) ◽  
pp. 691-701 ◽  
Author(s):  
Donald G. Guinee
Keyword(s):  
Differential Diagnosis ◽  
Interstitial Pneumonitis ◽  
Lymphoid Hyperplasia ◽  
Lymphoproliferative Disorders ◽  
Data Sources ◽  
Follicular Bronchiolitis ◽  
Nodular Lymphoid Hyperplasia ◽  
Pulmonary Pathology

Abstract Context.—Recent discoveries have expanded the spectrum of nonneoplastic pulmonary lymphoproliferative disorders and have provided new insights into their pathogenesis and treatment. Objective.—To review the thoracic manifestations of immunoglobulin (Ig) G4–related sclerosing disease and summarize current concepts and differential diagnosis of follicular bronchiolitis, lymphocytic interstitial pneumonitis, and nodular lymphoid hyperplasia. Data sources.—Data sources include recent and old articles, cases from the personal files of the author, and cases borrowed with permission from other authors. Conclusions.—Additional studies will be needed to further refine and add to observations in this evolving area of pulmonary pathology.

Picture Recognition Errors in the Differential Diagnosis of Alzheimer’s Disease

2019 ◽  
Vol 30 (3) ◽  
pp. 157-168
Author(s):  
Helmut Hildebrandt ◽  
Jana Schill ◽  
Jana Bördgen ◽  
Andreas Kastrup ◽  
Paul Eling
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Differential Diagnosis ◽  
Clinical Diagnosis ◽  
Response Bias ◽  
Recognition Task ◽  
Discriminatory Power ◽  
False Alarms ◽  
Picture Recognition ◽  
Recognition Errors

Abstract. This article explores the possibility of differentiating between patients suffering from Alzheimer’s disease (AD) and patients with other kinds of dementia by focusing on false alarms (FAs) on a picture recognition task (PRT). In Study 1, we compared AD and non-AD patients on the PRT and found that FAs discriminate well between these groups. Study 2 served to improve the discriminatory power of the FA score on the picture recognition task by adding associated pairs. Here, too, the FA score differentiated well between AD and non-AD patients, though the discriminatory power did not improve. The findings suggest that AD patients show a liberal response bias. Taken together, these studies suggest that FAs in picture recognition are of major importance for the clinical diagnosis of AD.

scholarly journals Diagnostic accuracy of dual-phase 18F-FP-CIT PET imaging for detection and differential diagnosis of Parkinsonism

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Minyoung Oh ◽  
Narae Lee ◽  
Chanwoo Kim ◽  
Hye Joo Son ◽  
Changhwan Sung ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Clinical Diagnosis ◽  
Fdg Pet ◽  
Brain Activity ◽  
Visual Assessment ◽  
Dual Phase ◽  
Regional Brain ◽  
Parkinsonian Disorders ◽  
Regional Brain Activity ◽  
Delayed Phase

AbstractDelayed phase 18F-FP-CIT PET (dCIT) can assess the striatal dopamine transporter binding to detect degenerative parkinsonism (DP). Early phase 18F-FP-CIT (eCIT) can assess the regional brain activity for differential diagnosis among parkinsonism similar with 18F-FDG PET. We evaluated the diagnostic performance of dual phase 18F-FP-CIT PET (dual CIT) and 18F-FDG PET compared with clinical diagnosis in 141 subjects [36 with idiopathic Parkinson’s disease (IPD), 77 with multiple system atrophy (MSA), 18 with progressive supranuclear palsy (PSP), and 10 with non-DP)]. Visual assessment of eCIT, dCIT, dual CIT, 18F-FDG and 18F-FDG PET with dCIT was in agreement with the clinical diagnosis in 61.7%, 69.5%, 95.7%, 81.6%, and 97.2% of cases, respectively. ECIT showed about 90% concordance with non-DP and MSA, and 8.3% and 27.8% with IPD and PSP, respectively. DCIT showed ≥ 88% concordance with non-DP, IPD, and PSP, and 49.4% concordance with MSA. Dual CIT showed ≥ 90% concordance in all groups. 18F-FDG PET showed ≥ 90% concordance with non-DP, MSA, and PSP, but only 33.3% concordance with IPD. The combination of 18F-FDG and dCIT yielded ≥ 90% concordance in all groups. Dual CIT may represent a powerful alternative to the combination of 18F-FDG PET and dCIT for differential diagnosis of parkinsonian disorders.

ELECTROENCEPHALOGRAPHIC FINDINGS IN BREATH HOLDING SPELLS

PEDIATRICS ◽  
1955 ◽  
Vol 15 (5) ◽  
pp. 595-599
Author(s):  
Niels L. Low ◽  
Erna L. Gibbs ◽  
Frederic A. Gibbs
Keyword(s):  
Differential Diagnosis ◽  
Clinical Diagnosis ◽  
Slow Wave ◽  
Clinical Observation ◽  
Seizure Activity ◽  
Breath Holding ◽  
Convulsive Disorders

After reviewing the literature on breath holding spells, it seemed desirable to determine whether any electroencephalographic abnormality is revealed by recordings during sleep in such cases. One hundred twenty-nine children between the ages of 7 months and 11½ years with breath holding spells were examined electroencephalographically while awake and during sleep. Seventy-seven of these children were boys and 52 were girls. All these children but one had normal electroencephalograms. One tracing taken during a breath holding spell is reproduced which shows slow wave but no seizure activity. The clinical diagnosis is discussed and it is concluded that the electroencephalogram in combination with the history and clinical observation is of value in the differential diagnosis between breath holding spells and convulsive disorders.

Placental Mesenchymal Dysplasia

2007 ◽  
Vol 131 (1) ◽  
pp. 131-137 ◽  
Author(s):  
Zahida Parveen ◽  
Jane Elaine Tongson-Ignacio ◽  
Cory R. Fraser ◽  
Jeffery L. Killeen ◽  
Karen S. Thompson
Keyword(s):  
Differential Diagnosis ◽  
Clinical Presentation ◽  
Early Recognition ◽  
Data Sources ◽  
Molar Pregnancy ◽  
Close Attention ◽  
Normal Fetus ◽  
Fetal Complications ◽  
Microscopic Features ◽  
Placental Mesenchymal Dysplasia

Abstract Context.—Placental mesenchymal dysplasia is characterized by placentomegaly and may be mistaken for molar pregnancy both clinically and macroscopically because of the presence of “grapelike vesicles.” It may be associated with a completely normal fetus, a fetus with growth restriction, or a fetus with features of Beckwith-Wiedemann syndrome. Objective.—To review the etiology, molecular pathology, gross and microscopic features, clinical presentation, complications, and differential diagnosis of placental mesenchymal dysplasia. Data Sources.—The PubMed and the Medline databases were systematically searched for articles between 1970 and 2006. The following keywords were used: placental mesenchymal dysplasia, mesenchymal hyperplasia, molar pregnancy, pseudomolar pregnancy, Beckwith-Wiedemann syndrome, and placentomegaly. Relevant references from review articles were also searched. Conclusions.—Placental mesenchymal dysplasia should be considered in the differential diagnosis when the ultrasonographic findings show a cystic placenta. Close attention should be paid to fetal morphology for early recognition of fetal complications and to prevent unnecessary termination of pregnancy in cases associated with a normal fetus.

scholarly journals Ultrasonic elastography and conventional ultrasound in the diagnosis of thyroid micro-nodules

2019 ◽  
Vol 35 (6) ◽  
Author(s):  
Jinming Wang ◽  
Wenbing Wei ◽  
Rui Guo
Keyword(s):  
Differential Diagnosis ◽  
Roc Curve ◽  
Thyroid Nodules ◽  
Ultrasound Elastography ◽  
Surgical Pathology ◽  
Maximum Diameter ◽  
Clinical Value ◽  
Conventional Ultrasound ◽  
Missed Diagnosis ◽  
The Difference

Objective: To investigate the clinical value of conventional ultrasound, ultrasound elastography and conventional ultrasound combined with ultrasound elastography in differential diagnosis of benign and malignant thyroid micro-nodules. Methods: Eighty-six patients who were found with thyroid micro-nodules with the maximum diameter no more than 10 mm in the physical examination in our hospital from June 2015 to December 2017 were selected, and 102 nodules were included. All patients were confirmed with thyroid micro-nodules by puncture or surgical pathology and underwent conventional ultrasound and ultrasound elastography. Taking the surgical pathological results as a control, the value of conventional ultrasound, ultrasound elastography and conventional ultrasound combined with ultrasound elastography in differential diagnosis of benign and malignant thyroid micro-nodules were compared. A receiver operating characteristic (ROC) curve was drawn, and the area under the ROC curve was calculated. Results: One hundred and two thyroid nodules were detected by surgical pathology, including 75 benign nodules (73.53%) and 27 malignant nodules (26.47%). The sensitivity and diagnostic accordance rate of ultrasound elastography were significantly higher than those of conventional ultrasound in the diagnosis of thyroid microcarcinoma, and the missed diagnosis rate of ultrasound elastography was significantly lower than that of conventional ultrasound; the difference was statistically significant (P<0.05). However, the difference between the two methods was not statistically significant in terms of diagnostic specificity and misdiagnosis rate (P>0.05). The areas under the ROC curve in the diagnosis of benign and malignant thyroid nodules by conventional ultrasound and ultrasound elastography were 0.735 and 0.743 respectively. Conclusion: Conventional ultrasound can be used as a routine examination technique in differential diagnosis of benign and malignant thyroid nodules, while ultrasound elastography can improve the sensitivity and diagnostic rate in the diagnosis of thyroid micro carcinoma. It can help to reduce the clinical missed diagnosis, which also can be be used as an effective supplement for conventional ultrasound. doi: https://doi.org/10.12669/pjms.35.6.777 How to cite this:Wang J, Wei W, Guo R. Ultrasonic elastography and conventional ultrasound in the diagnosis of thyroid micro-nodules. Pak J Med Sci. 2019;35(6):1526-1531. doi: https://doi.org/10.12669/pjms.35.6.777 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Fatal cerebral and cerebellar hemorrhagic infarction after thoracoscopic microdiscectomy

2007 ◽  
Vol 6 (3) ◽  
pp. 276-279 ◽  
Author(s):  
Erwin M. J. Cornips ◽  
Julie Staals ◽  
Angela Stavast ◽  
Kim Rijkers ◽  
Robert J. Van Oostenbrugge
Keyword(s):  
Cerebrospinal Fluid ◽  
Differential Diagnosis ◽  
Venous Thrombosis ◽  
Intracranial Hypotension ◽  
Rare Case ◽  
Pathophysiological Mechanism ◽  
Thoracic Cavity ◽  
Hemorrhagic Infarction ◽  
Severe Manifestation ◽  
Cortical Venous Thrombosis

✓ The authors present a rare case of fatal cerebral and cerebellar hemorrhagic infarction following an uneventful thoracoscopic microdiscectomy. They hypothesize that this complication was associated with cortical venous thrombosis secondary to intracranial hypotension, which was caused by an unnoticed leak of cerebrospinal fluid (CSF) into the thoracic cavity. Cortical venous thrombosis and intrathoracic CSF were confirmed at autopsy. The former disorder is the most severe manifestation of the pathophysiological mechanism occurring to a lesser degree in patients affected by mild intracranial hypotension, and occurs more frequently in these patients. Intracranial hypotension (of an orthostatic nature or not) must be considered in the differential diagnosis of every patient who complains of headaches after thoracoscopic or open transthoracic microdiscectomy.

Using illness narratives in clinical diagnosis

2018 ◽  
pp. 203-219
Author(s):  
Elisabeth Gülich
Keyword(s):  
Differential Diagnosis ◽  
Anxiety Disorders ◽  
Clinical Diagnosis ◽  
Basic Assumption ◽  
Epileptic Seizures ◽  
Illness Narratives ◽  
Panic Attacks ◽  
Patient Interactions ◽  
Narrative Patterns ◽  
Narrative Techniques

This chapter argues that illness narratives are a suitable instrument for differential diagnosis in practice. The study discussed is based on a corpus of doctor–patient interactions, i.e., encounters with patients suffering from epileptic or non-epileptic seizures and/or anxiety disorders, and for most of whom differential diagnosis is very difficult. The basic assumption put forward here is that the types of narrative can give clues to identify the types of seizures or attacks. The focus is on the ‘methods’ patients use in verbalizing the ‘auras’ preceding the seizures and the course of the seizures or attacks themselves. In particular, it pays attention to the procedures of resolving difficulties of verbalization, which occur during the production of the narrative. It demonstrates that preferences in the choice of narrative techniques allow a distinction between patients with epileptic seizures and patients with other types of fits or with panic attacks. Finally it suggests that knowledge of recurrent narrative patterns can help to recognize the syndrome presented, on condition that the doctor encourages narrative reconstructions and listens carefully.

scholarly journals Bilateral acute depigmentation of iris: 3-year follow-up of a case

2018 ◽  
Vol 10 ◽  
pp. 251584141878798 ◽  
Author(s):  
Cemile Ucgul Atilgan ◽  
Pinar Kosekahya ◽  
Mehtap Caglayan ◽  
Nilufer Berker
Keyword(s):  
Differential Diagnosis ◽  
Anterior Chamber ◽  
Female Patient ◽  
Clinical Diagnosis ◽  
Young Women ◽  
Inflammatory Reaction ◽  
Trabecular Meshwork ◽  
Keratic Precipitates ◽  
Iris Depigmentation

Bilateral acute depigmentation of the iris (BADI) usually affecting young women, is a newly defined clinical diagnosis with bilateral symmetrical pigment loss of iris stroma without iris transillumination defect. Herein, we want to share the results of a 3-year-long follow-up of a 23-year old female patient with BADI. She was admitted to our clinic with a complaint of discoloration of both her brown irises. An ocular evaluation of the patient revealed symmetrical pigment deposition in trabecular meshwork. No iris transillumination defect, pupillary sphincter paralysis, keratic precipitates, and inflammatory reaction in anterior chamber were seen. The depigmented iris stroma became repigmented symmetrically after 3-year follow-up period. Although it is rare, BADI should be considered in the differential diagnosis of the diseases with bilateral iris depigmentation.

Sign in / Sign up

Export Citation Format

Share Document