scholarly journals 1551. Cat Scratch Disease as a Mimicker of Malignancy: Rare and Elusive

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S777-S777
Author(s):  
Udit Dhal ◽  
Jeffery Tarrand ◽  
Dimitrios P Kontoyiannis
Keyword(s):  
Breast Cancer ◽  
Bartonella Henselae ◽  
Case Reports ◽  
Skin Lesions ◽  
Common Finding ◽  
Cancer Center ◽  
Prior History ◽  
Cat Scratch Disease ◽  
Laboratory Findings ◽  
Material Support

Abstract Background Cat scratch disease (CSD) mimicking malignancy has been the subject of scattered case reports. To that end, we reviewed patients (pts) with CSD at MD Anderson Cancer Center (MDACC), focusing on the clinical overlap of CSD presentation with that of malignancy. Methods We retrospectively reviewed all pts diagnosed with CSD at MDACC (11/2015-1/2020). CSD was diagnosed based on Bartonella henselae serology, animal exposure and biopsy findings consistent with the diagnosis. We collected data on CSD epidemiology, signs, symptoms, laboratory findings, histopathology, radiological studies, treatment used, outcome and the malignancy mimicked. We also reviewed the published cases of CSD mimicking malignancy (1952-2020). Results We identified 11 such pts; 1 (9%) was male and 5(45%) were ≤ 18 years old. No pt had a prior history of malignancy. All but 1 pt reported an exposure to cats. Only 2/11 (18%) had fever, and none of the pts had skin lesions or hepatosplenomegaly. All pts had lymphadenopathy; 2/11 (18%) had only inguinal lymphadenopathy. PET scan was performed for 3 pts and revealed only enlarged lymph nodes. Several malignancies were considered as initial diagnostic impressions, including sarcoma (n=3), lymphoma (n=2), breast cancer (n=2). Serum Bartonella IgG titer was ≥ 1:512 in 9/11(82%) pts with 3 pts (28%) positive for IgM. 8 pts had a biopsy and non-necrotizing granuloma was the most common finding, present in 4. Azithromycin was used in all 8 pts that were treated. Nearly all pts improved or had resolution of symptoms with one pt having persistent fever and lymphadenopathy. Literature search identified 33 cases of CSD that mimicked malignancy (10 for breast cancer, 10 for lymphoma, 6 for sarcoma with 1 each for lung, pancreatic, parotid and 4 others). Conclusion Although there was a probable referral bias in the CSD pts at MDACC, CSD should be included in the differential diagnosis of malignancy. Although publication biases are probable, literature review also supports the notion that atypical CSD rarely can simulate a variety of malignancies. Disclosures Dimitrios P. Kontoyiannis, MD, Amplyx Pharmaceuticals (Consultant)Astellas Pharma (Consultant)Ciadara Therapeutics (Consultant)Gilead Sciences (Other Financial or Material Support, Honoraria)Mayne Pharma (Consultant)Merck & Co (Consultant, Honoraria)Pharma (Consultant)United Medical (Other Financial or Material Support, Honoraria)

scholarly journals Cat Scratch Disease as a Mimicker of Malignancy

2021 ◽  
Author(s):  
U Dhal ◽  
R S Hicklen ◽  
J Tarrand ◽  
D P Kontoyiannis
Keyword(s):  
Breast Cancer ◽  
Young Female ◽  
Common Finding ◽  
Cancer Center ◽  
Cat Scratch Disease ◽  
Systemic Symptoms ◽  
Md Anderson

Abstract Cat Scratch Disease (CSD) infrequently mimics malignancy. We reviewed 11 such cases at MD Anderson Cancer Center and an additional 36 reported from the literature. Breast cancer, sarcoma, and lymphoma were the most commonly suspected malignancies. Most patients were young, female, had prior cat exposure and had no systemic symptoms. Regional lymphadenopathy was the most common finding.

scholarly journals A prospective study of cat-scratch disease in Lima-Peru

2002 ◽  
Vol 44 (6) ◽  
pp. 325-330 ◽  
Author(s):  
Erick HUARCAYA ◽  
Ciro MAGUIÑA ◽  
Jenny MERELLO ◽  
Jaime COK ◽  
Richard BIRTLES ◽  
...  
Keyword(s):  
Prospective Study ◽  
Pediatric Patients ◽  
Bartonella Henselae ◽  
Antibody Test ◽  
Skin Lesions ◽  
Cat Scratch Disease ◽  
The Mean ◽  
A Prospective Study ◽  
Immunofluorescence Antibody Test ◽  
Immunofluorescence Antibody

Cat-Scratch Disease (CSD) is a benign lymphadenitis that may progress to severe or recurrent forms, and it is occasionally associated with morbidity. Between January of 1998 and March of 1999, forty-three suspected CSD patients were assessed in the Hospital Cayetano Heredia and the Instituto de Salud del Niño, in Lima, Peru. Twelve patients had a confirmed diagnosis, 8 of whom were women, and the mean age was 10 years old. The majority (53%) of the cases were encountered in the summer. All patients reported having had contact with cats. Fever, malaise, lymphadenopathy and skin lesions were the most frequent clinical features. Twelve patients had indirect immunofluorescence antibody test titers of between 1/50 and 1/800 for Bartonella henselae and Bartonella clarridgeiae. Two lymph node biopsies were histologically compatible with CSD. No positive blood cultures could be obtained. This is the first Peruvian prospective study able to identify B. henselae and B. clarridgeiae in pediatric patients.

scholarly journals An unusual course of COVID-19 infection with late increase in C-reactive protein (clinical case reports)

2020 ◽  
Vol 30 (5) ◽  
pp. 709-714
Author(s):  
S. Yu. Chikina ◽  
M. Yu. Brovko ◽  
V. V. Royuk ◽  
S. N. Avdeev
Keyword(s):  
Comprehensive Evaluation ◽  
Case Reports ◽  
Severe Disease ◽  
Clinical Status ◽  
Clinical Signs ◽  
Common Finding ◽  
C Reactive Protein ◽  
Laboratory Findings ◽  
Antiinflammatory Therapy ◽  
Reactive Protein

Clinical signs of COVID-19 infection are non-specific and diagnosis is typically based on comprehensive evaluation of the patient’s history, clinical status, radiological and laboratory findings. A common finding in COVID-19 patients is increased C-reactive protein (CRP), though in some patients, CRP remains within normal range notwithstanding the presence of other criteria of severe disease. We describe two clinical cases of COVID-19 with severe bilateral pneumonia and late increase in CRP. Similar cases re quite challenging for making the diagnosis and indicating the antiinflammatory therapy.

scholarly journals Spiradenoma of the breast and review of cases over 76-years

2019 ◽  
Vol 6 (1) ◽  
pp. 38
Author(s):  
Mary Dick ◽  
Apporva Sharma ◽  
Poonam Sharma
Keyword(s):  
Breast Cancer ◽  
Case Reports ◽  
Breast Mass ◽  
Prior History ◽  
Imaging Findings ◽  
Apocrine Glands ◽  
Breast Masses ◽  
Non Invasive ◽  
Wide Range ◽  
History Of

Spiradenomas stem from eccrine and apocrine glands to form benign cutaneous tumors. When arising on the breast, nipple, and areola region, spiradenomas can be difficult to differentiate from more worrisome breast masses. This is particularly true in patients with a prior history of breast cancer. These tumors can be mimicked by a wide range of adnexal growths and play a role in syndromic conditions. We present a case of a 56-year-old female with a 20-year enlarging left lower inner quadrant breast mass reviewed on mammography which was later excised and histopathologically diagnosed as a spiradenoma. Spiradenomas can be challenging to diagnose as they can present with similar findings on inexpensive and non-invasive testing such as ultrasound and mammogram. While a biopsy is a definitive tool for diagnosis, this is contraindicated in some spiradenoma mimickers such as epidermal cysts complicating diagnosis. To our knowledge, there are only six case reports of breast spiradenomas. We have reviewed the histopathology of this case and summarized all cases of breast spiradenomas and their malignant counterpart spiradenocarcinomas available in the literature compiling their presentations and imaging findings.

scholarly journals Cat scratch disease as zoonosis: Pathogenesis, clinical symptoms, diagnosis.

2018 ◽  
Vol 74 (1) ◽  
pp. 5997-2018
Author(s):  
ŁUKASZ MAZUREK ◽  
STANISŁAW WINIARCZYK ◽  
ŁUKASZ ADASZEK
Keyword(s):  
Clinical Symptoms ◽  
Bartonella Henselae ◽  
Unknown Origin ◽  
Skin Lesions ◽  
Cat Scratch Disease ◽  
Serological Tests ◽  
Antibody Titres ◽  
Polymerase Chain ◽  
Brain And Spinal Cord ◽  
The Brain

The cat scratch disease in humans is caused by the bacteria Bartonella henselae. The disease can take many different forms: from asymptomatic cases, cases of skin lesions, fever of unknown origin, enlargement of lymph nodes, ophthalmologic disorders, to severe cases involving inflammation of the brain and spinal cord or endocarditis. The reservoir of B. henselae for humans are domestic animals, especially cats. The diagnosis of the disease is based on data from the anamnesis, the patient’s confirmed exposure to cats, and the results of serological tests showing an increase in antibody titres for B. henselae. The disease can also be confirmed by positive results of the polymerase chain reaction (PCR). No vaccines against bartonellosis are available. The most important in preventing the disease is to maintain appropriate hygiene in contact with cats and dogs, and to eradicate the vectors of Bartonella, such as fleas..

scholarly journals Beyond Cat Scratch Disease: A Case Report ofBartonellaInfection Mimicking Vasculitic Disorder

2012 ◽  
Vol 2012 ◽  
pp. 1-4
Author(s):  
Amelia Spinella ◽  
Federica Lumetti ◽  
Gilda Sandri ◽  
Valentina Cestelli ◽  
Maria Teresa Mascia
Keyword(s):  
Case Report ◽  
Lymph Nodes ◽  
Bartonella Henselae ◽  
Skin Lesions ◽  
Bacterial Disease ◽  
Cat Scratch Disease ◽  
History Of ◽  
Vasculitic Disorder

Cat scratch disease (CSD) is a bacterial disease caused byBartonella henselaeand it is mainly characterized by self-limiting lymphadenopathy in the draining site of a cat scratch or bite. We report a patient with history of fever, swelling lymph nodes, vasculitic-like skin lesions, and positivity ofBartonellaserology initially considered as expression of a disimmune disease.

Linezolid Induced Skin Reactions in a Multi Drug Resistant Infective Endocarditis Patient: A Rare Case

2020 ◽  
Vol 15 (3) ◽  
pp. 222-226 ◽  
Author(s):  
Asha K. Rajan ◽  
Ananth Kashyap ◽  
Manik Chhabra ◽  
Muhammed Rashid
Keyword(s):  
Case Report ◽  
Infective Endocarditis ◽  
Rare Case ◽  
Case Reports ◽  
Multidrug Resistant ◽  
The Body ◽  
Prior History ◽  
Skin Reactions ◽  
Rare Case Report ◽  
Multiple Drugs

Rationale: Linezolid (LNZ) induced Cutaneous Adverse Drug Reactions (CADRs) have rare atypical presentation. Till date, there are very few published case reports on LNZ induced CADRs among the multidrug-resistant patients suffering from Infective Endocarditis (MDR IE). Here, we present a rare case report of LNZ induced CARs in a MDR IE patient. Case report: A 24-year-old female patient was admitted to the hospital with chief complaints of fever (101°C) associated with rigors, chills, and shortness of breath (grade IV) for the past 4 days. She was diagnosed with MDR IE, having a prior history of rheumatic heart disease. She was prescribed LNZ 600mg IV BD for MDR IE, against Staphylococcus coagulase-negative. The patient experienced flares of cutaneous reactions with multiple hyper-pigmented maculopapular lesions all over the body after one week of LNZ therapy. Upon causality assessment, she was found to be suffering from LNZ induced CADRs. LNZ dose was tapered gradually and discontinued. The patient was prescribed corticosteroids along with other supportive care. Her reactions completely subsided and infection got controlled following 1 month of therapy. Conclusion: Healthcare professionals should be vigilant for rare CADRs, while monitoring the patients on LNZ therapy especially in MDR patients as they are exposed to multiple drugs. Moreover, strengthened spontaneous reporting is required for better quantification.

Testosterone and Breast Cancer in Transmen: Case Reports, Review of the Literature, and Clinical Observation

2019 ◽  
Vol 19 (2) ◽  
pp. e271-e275 ◽  
Author(s):  
Sara Tanini ◽  
Alessandra D. Fisher ◽  
Icro Meattini ◽  
Simonetta Bianchi ◽  
Jiska Ristori ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Clinical Observation ◽  
Case Reports ◽  
Review Of The Literature

scholarly journals Uptake of Trastuzumab Biosimilars for the Treatment of HER2-Positive Breast Cancer: A Real-World Experience from a Cancer Center

Pharmaceutics ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 684
Author(s):  
Michela Piezzo ◽  
Roberta D’Aniello ◽  
Ilaria Avallone ◽  
Bruno Barba ◽  
Daniela Cianniello ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Inventory Management ◽  
Switching Process ◽  
Cancer Center ◽  
Electronic Systems ◽  
Her2 Positive ◽  
Reference Drug ◽  
Treatment Regimens ◽  
Reporting Systems ◽  
Effective Cost

Background: The introduction of trastuzumab biosimilars in clinical practice plays an important role in promoting the sustainability of healthcare systems. By contrast, the switching process can be challenging to the clinics. This survey describes the switching process at a National Cancer Institute over a period of 2 years. Methods: Data regarding all trastuzumab-based regimens for breast cancer (BC) from 1 January 2019 and 31 December 2020 were extracted from both adverse drug reactions (ADRs) reporting systems and electronic systems involved in inventory management, prescribing, dispensing, and administration. Both patients under monotherapy and combination treatment regimens were included. There were no exclusion criteria. Results and Conclusions: Overall 354 patients received at least one trastuzumab-based regimen for a total of 493 lines of treatment and 5769 administrations. Biosimilar were used in 34.3% of trastuzumab-based treatments. No differences between biosimilars and reference drug have been observed in terms of ADRs. The effective cost-saving of the first 2 years is greater than EUR 800,000 and it is estimated to increase over time.

scholarly journals Clozapine-induced stuttering in the absence of known risk factors: a case report

2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Florence Jaguga
Keyword(s):  
Risk Factors ◽  
Family History ◽  
Side Effect ◽  
Case Reports ◽  
Extrapyramidal Symptoms ◽  
Prior History ◽  
Case Presentation ◽  
Rare Side Effect ◽  
History Of ◽  
Electrophysiological Findings

Abstract Background Stuttering is a rare side effect of clozapine. It has been shown to occur in the presence of one or more factors such as abnormal electrophysiological findings and seizures, extrapyramidal symptoms, brain pathology, and a family history of stuttering. Few case reports have documented the occurrence of clozapine-induced stuttering in the absence of these risk factors. Case presentation A 29-year-old African male on clozapine for treatment-resistant schizophrenia presented with stuttering at a dosage of 400 mg/day that resolved with dose reduction. Electroencephalogram findings were normal, and there was no clinical evidence of seizures. The patient had no prior history or family history of stuttering, had a normal neurological examination, and showed no signs of extrapyramidal symptoms. Conclusion Clinicians ought to be aware of stuttering as a side effect of clozapine, even in the absence of known risk factors. Further research should investigate the pathophysiology of clozapine-induced stuttering.

Sign in / Sign up

Export Citation Format

Share Document