keyword
MENU ▼
Read by QxMD icon Read
search

Pleomorphism

keyword
https://www.readbyqxmd.com/read/28208859/diphtheroids-important-nosocomial-pathogens
#1
Reshmi Chandran, Dinju Raj Puthukkichal, Ethel Suman, Shashidhar Kotian Mangalore
INTRODUCTION: Diphtheroids are defined as aerobic, non-sporulating, pleomorphic Gram-positive bacilli which are more uniformly stained than Corynebacterium diphtheriae, lack the metachromatic granules and are arranged in a palisade manner. They are usually commensals of the skin and mucous membranes. They differ from C.diphtheriae in biochemical rea-ctions as well as in toxin production. Since, they are usually found as commensals on the skin, they are often considered as mere contaminants when isolated from clinical samples...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28199428/-complex-trauma
#2
María V Chiappe, Germán L Teti
The effects of trauma have been the focus of study by several researchers. However, at present, there is no diagnostic criteria that includes all forms of clinical presentations of subjects who have been victims of prolonged trauma or that have started at developmentally vulnerable times in the victim's life. Unlike those individuals who are victims of a single traumatic event, individuals who suffer multiple traumas that occur at vulnerable times, are at risk of developing a complex trauma. The concept of complex trauma was introduced in the last decades and is characterized by a symptomatic pleomorphism: emotional instability, somatization, dissociation; changes in identity, pathological changes in interpersonal relationships and suicidal behavior...
March 2016: Vertex: Revista Argentina de Psiquiatriá
https://www.readbyqxmd.com/read/28193741/coinfection-of-leishmania-guyanensis-and-human-immunodeficiency-virus-acquired-immune-deficiency-syndrome-report-of-a-case-of-disseminated-cutaneous-leishmaniasis-in-ecuador
#3
Manuel Calvopina, Cristina Aguirre, William Cevallos, Alberto Castillo, Ibrahim Abbasi, Alon Warburg
Reported herein is the first case of Leishmania-human immunodeficiency virus (HIV) coinfection in Ecuador. In Ecuador, HIV infections overlap endemic areas of leishmaniasis. Immunosuppression is a well-established risk factor for developing severe disease. This is a severe case of a 32-year-old man presenting with disseminated pleomorphic ulcers, papules, and cutaneous plaque-like lesions over his whole body. Numerous amastigotes were observed in both skin scrapings and biopsies. The sequence of the cytochrome b gene confirmed the presence of Leishmania guyanensis The patient was treated but failed to respond to meglumine antimoniate and amphotericin B...
February 13, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28191296/dedifferentiated-liposarcoma-of-the-esophagus-a-case-report-and-selected-review-of-the-literature
#4
Christopher L Brett, Daniel H Miller, Liuyan Jiang, Herbert C Wolfsen, Steven Attia, Lauren Hintenlang, Niveditha Jagadesh, Robert C Miller
Soft tissue sarcomas of the esophagus represent an extremely rare cause of esophageal masses, and an even smaller proportion of these tumors represent dedifferentiated liposarcomas. We present a case of a 75-year-old gentleman presenting with dysphagia found to have a 5 cm pedunculated mass in the cervical esophagus, originating at the cricopharyngeus. This was found to have involvement limited to the superficial mucosa by endoscopic ultrasound, and the lesion was subsequently resected endoscopically. Pathology demonstrated an undifferentiated pleomorphic sarcoma later determined to represent dedifferentiated liposarcoma after fluorescence in situ hybridization analysis...
November 17, 2016: Rare Tumors
https://www.readbyqxmd.com/read/28191293/the-imaging-and-pathological-features-of-metastatic-leiomyosarcoma-in-the-gallbladder
#5
Yi Guo, Eleanor Chen, Darin J Davidson, Venu G Pillarisetty, Robin L Jones, Seth M Pollack
Uterine leiomyosarcoma is a rare and aggressive malignancy with poor overall prognosis. There have been few reports of metastatic leiomyosarcoma in the gallbladder. We report a case of a 41-year-old female who underwent total abdominal hysterectomy due to presumed uterine fibroids. The postoperative pathology revealed high-grade pleomorphic leiomyosarcoma, with involvement of the uterine serosal surface. She subsequently underwent exploratory laparotomy, followed by pelvic radiation and chemotherapy. Since initial management she has developed metastatic disease and has been under treatment and surveillance for 11 years...
November 17, 2016: Rare Tumors
https://www.readbyqxmd.com/read/28188754/nutm2a-cic-fusion-small-round-cell-sarcoma-a-genetically-distinct-variant-of-cic-rearranged-sarcoma
#6
Shintaro Sugita, Yasuhito Arai, Tomoyuki Aoyama, Hiroko Asanuma, Wakako Mukai, Natsuko Hama, Makoto Emori, Tatsuhiro Shibata, Tadashi Hasegawa
CIC-rearranged sarcoma is a new entity of undifferentiated small round cell sarcoma characterized by chimeric fusions with CIC-rearrangement. We report a NUTM2A-CIC fusion sarcoma in a 43-year-old woman who died of rapidly progressive disease. Histologic analysis revealed multinodular proliferation of small round tumor cells with mild nuclear pleomorphism. The sclerotic fibrous septa separated the tumor into multiple nodules. Immunohistochemistry showed that the tumor cells were diffusely positive for vimentin, focally positive for cytokeratin, and negative for CD99 and NKX2...
February 8, 2017: Human Pathology
https://www.readbyqxmd.com/read/28188513/breast-metastasis-of-pulmonary-pleomorphic-carcinoma-a-case-report
#7
Tomoyuki Fujita, Hajime Nishimura, Ryoichi Kondo, Kinya Furukawa, Yukio Morishita, Minoru Fujimori
BACKGROUND: Lung cancer rarely metastasizes to the breast, and breast metastasis of pulmonary pleomorphic carcinoma has not been previously reported. CASE PRESENTATION: The patient was a 66-year-old woman who became aware of a mass in the right breast and visited a physician. She was referred to our department for close examination, upon which she was diagnosed with double cancer (right breast cancer and left lung cancer). Needle biopsy findings for the mammary tumor were similar to those for the lung biopsy specimen, but spindle cell or metaplastic carcinoma were possibilities...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28187791/primary-mediastinal-large-b-cell-lymphoma-in-a-woman-who-is-human-immunodeficiency-virus-positive-presenting-with-superior-vena-cava-syndrome-a-case-report
#8
Pedro Pallangyo, Paulina Nicholaus, Frederick Lyimo, Elikaanany Urio, Peter Kisenge, Mohamed Janabi
BACKGROUND: The risk of non-Hodgkin lymphoma is increased 200-fold in individuals seropositive for human immunodeficiency virus compared to those free from human immunodeficiency virus. Human immunodeficiency virus-associated non-Hodgkin lymphoma is known for its atypical presentation, aggressive ability, widespread involvement, poor response to chemotherapy, and high relapse potential which makes both the diagnosis and management a difficult undertaking especially in resource-poor settings...
February 11, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28185325/a-case-of-high-grade-astrocytoma-with-braf-and-atrx-mutations-following-a-long-standing-course-over-two-decades
#9
Satoshi Nakata 中田 聡, Keishi Horiguchi, Shogo Ishiuchi, Yuhei Yoshimoto, Seiji Yamada, Sumihito Nobusawa, Hayato Ikota, Junko Hirato, Hideaki Yokoo
Pediatric high-grade gliomas are rare and occasionally hard to classify. These tumors often feature a well-demarcated histology and are expected to have a better outcome than ordinary diffuse high-grade gliomas in adults. We herein report a case of circumscribed high-grade glioma that showed a distinct molecular profile and followed an excellent course for 26 years. The patient, a 3-year-old boy at onset, presented with a contrast-enhancing mass in the right temporal lobe and underwent resection. Histologically, the tumor mainly consisted of compact bundles of GFAP-positive spindle cells...
February 9, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28181367/periocular-breast-carcinoma-metastases-correlation-of-clinical-radiologic-and-histopathologic-features
#10
Natalie Homer, Frederick A Jakobiec, Anna Stagner, Mary Elizabeth Cunnane, Suzanne K Freitag, Aaron Fay, Michael K Yoon
IMPORTANCE: To describe presenting patterns of breast cancer metastases to the orbit and eyelids BACKGROUND: To provide clinical, radiographic, and pathologic correlations of breast metastases to the orbit or eyelids and evaluate radiographic volumetric orbital changes DESIGN: Retrospective review in an academic center PARTICIPANTS: Ten female patients with periocular metastatic breast carcinoma who were seen at the Massachusetts Eye and Ear Infirmary Oculoplastics Clinic METHODS: Retrospective review of patient records, imaging and pathology findings...
February 9, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28181325/recurrent-copy-number-alterations-in-low-grade-and-anaplastic-pleomorphic-xanthoastrocytoma-with-and-without-braf-v600e-mutation
#11
Rachael A Vaubel, Alissa A Caron, Seiji Yamada, Paul A Decker, Jeanette E Eckel Passow, Fausto J Rodriguez, Amulya A Nageswara Rao, Daniel Lachance, Ian Parney, Robert Jenkins, Caterina Giannini
Pleomorphic xanthoastrocytoma (PXA) is a rare localized glioma characterized by frequent BRAF V600E mutation and CDKN2A/B deletion. We explored the association of copy-number variants (CNVs) with BRAF mutations, tumor grade, and patient survival in a cohort of 41 PXA patients using OncoScan chromosomal microarray. Primary resection specimens were available in 38 cases, including 24 PXA and 14 anaplastic PXA (A-PXA), 23 BRAF V600E mutant tumors (61%). CNVs were identified in all cases and most frequently involved chromosome 9 with homozygous CDKN2A/B deletion (n=33, 87%), a higher proportion than previously detected by comparative genomic hybridization (50-60%) (37)...
February 9, 2017: Brain Pathology
https://www.readbyqxmd.com/read/28180194/prospective-evaluation-of-quasistatic-ultrasound-elastography-use-compared-with-baseline-us-for-parotid-gland-lesions-preliminary-results-of-elasticity-contrast-index-eci-evaluation
#12
Vito Cantisani, Emanuele David, Armando De Virgilio, Paul S Sidhu, Hektor Grazhdani, Antonio Greco, Marco De Vincentiis, Alessandro Corsi, Flaminia De Cristofaro, Luca Brunese, Fabrizio Calliada, Alfredo Blandino, Mario Tombolini, Giorgio Ascenti, Roberto Stramare, Marcello Caratozzolo, Ferdinando D'Ambrosio
AIMS: To assess the diagnostic value of elasticity contrast index (ECI) elastography, in comparison with conventional ultrasound for the differentiation of benign and malignant parotid lesions. MATERIAL AND METHODS: Sixty-three consecutive patients with parotid gland tumors, treated surgically at a single tertiary center were enrolled. Ultrasound evaluation consisted of B-mode, color-Doppler and quasistatic ultrasound elastography (USE), conducted with the ECI technique...
January 31, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/28180018/case-report-of-four-different-primary-mesenteric-neoplasms-and-review-of-literature
#13
Yusuf Yagmur, Sami Akbulut, Serdar Gumus, Mehmet Babur, Mehmet Ali Can
INTRODUCTION: It is rare for primary tumors to arise from the mesentery. Lymphangiomas appear as congenital malformations of the lymphatic system or benign neoplasms as a large, thin-walled, often multilocular cyst. Mesenteric infiltration is common and during surgical treatment, adjustment of structures such as the bowel and resection of the spleen may be required. Cystic mesotheliomas are rare, benign tumors that originate from the peritoneal mesothelium and are more common in women...
October 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/28177947/association-of-li-fraumeni-syndrome-with-small-cell-carcinoma-of-the-ovary-hypercalcemic-type-and-concurrent-pleomorphic-liposarcoma-of-the-cervix
#14
Bevan Tandon, Ian S Hagemann, Horacio M Maluf, John D Pfeifer, Hussam Al-Kateb
Small cell carcinoma of the ovary, hypercalcemic type (SCCOHT), is a rare, highly lethal malignancy predominantly affecting young adult females. We report a patient with widely metastatic SCCOHT and concurrent uterine cervical pleomorphic liposarcoma. Clinical targeted next-generation sequencing was performed on both neoplasms and demonstrated hemizygous stop-gain TP53 mutations (p.R196*), and wild-type SMARCA4 in both tumors. Microarray analyses of both tumors revealed similar but not identical widespread loss of heterozygosity over most chromosomes associated with loss of chromosomal copy number in the SCCOHT and pleomorphic liposarcoma tumors, amplification of FGFR1 in both tumors, and amplification of MYC in the SCCOHT...
February 7, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28176614/acanthomatous-ameloblastoma-with-atypical-foci-in-five-dogs
#15
Jennifer L Malmberg, Elizabeth W Howerth, Barb E Powers, Paula A Schaffer
Acanthomatous ameloblastoma is a common, locally invasive, nonmetastasizing tumor of the canine oral cavity. The long-term prognosis for canine acanthomatous ameloblastoma is good if complete excision can be achieved, usually by maxillectomy or mandibulectomy. A variant of acanthomatous ameloblastoma with atypical foci was noted in 5 dogs. There was no age, breed, or sex predisposition. Atypical cells were pleomorphic with a high mitotic rate. They were immunohistochemically negative for cytokeratin, vimentin, melan A, PNL2, CD3, Pax5, CD18, chromogranin A, and synaptophysin...
January 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28169907/endoscopy-assisted-transoral-versus-endoscopy-assisted-transcervical-minimal-incision-plus-mandibular-osteotomy-approach-in-resection-of-large-parapharyngeal-space-tumors
#16
Wei-Liang Chen, Song Fan, Zhi-Quan Huang, Da-Ming Zhang
BACKGROUND: Resection of the parapharyngeal space is often challenging. This study aims to evaluate the outcome of the endoscopy-assisted transoral approach for resection of the parapharyngeal space tumors compared with the endoscopy-assisted transcervical approach. METHODS: Twenty-three consecutive patients (15 males, 8 females) who underwent resection of large parapharyngeal space tumors via endoscopy-assisted transoral (ETO) approach or endoscopy-assisted transcervical minimal incision plus osteotomy of the vertical ramus outside the mandibular foramen (ETC + MO) approach were analyzed retrospectively...
February 6, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28169467/radiation-associated-angiosarcoma-in-the-setting-of-breast-cancer-mimicking-radiation-dermatitis-a-diagnostic-pitfall
#17
Brianne H Daniels, Jennifer S Ko, J Jordi Rowe, Erinn Downs-Kelly, Steven D Billings
BACKGROUND: We have encountered cases of postradiation angiosarcoma (PRAS) histologically mimicking radiation dermatitis. METHODS: Cases of PRAS from institutional/consultation archives from 2006-2016 were reviewed. For inclusion, tumors had to have inapparent/subtle tumor at low magnification and scattered individual tumor cells resembling radiation fibroblasts. Prior ancillary studies were reviewed, with additional immunostains performed as needed. RESULTS: Ten met criteria...
February 7, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28160093/pleomorphic-myxoid-liposarcoma-in-an-adolescent-with-li-fraumeni-syndrome
#18
Tiffany J Sinclair, Chad M Thorson, Elysia Alvarez, Serena Tan, Sheri L Spunt, Stephanie D Chao
We present the case of a 15-year-old female with a right perineal mass that was found to be pleomorphic myxoid liposarcoma, a recently recognized, rare subtype of liposarcoma. The patient had a strong family history of malignancy and genetic screening revealed a pathogenic TP53 mutation consistent with Li-Fraumeni syndrome.
February 3, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28154768/warty-carcinoma-penis-an-uncommon-variant
#19
Sushma Thapa, Arnab Ghosh, Santosh Shrestha, Dilasma Ghartimagar, Raghavan Narasimhan, O P Talwar
Penile carcinoma frequency varies widely in different parts of the world and comprises 1-10% of all the malignancies in males. Majority of the cases of penile carcinoma are squamous cell carcinoma of penis comprising 60% to 70% of all cases. Warty carcinoma of penis is an unusual neoplasm and a variant of penile squamous cell carcinoma comprising 5%-10% of all the variants. The other histological variants include basaloid, verrucous, papillary, sarcomatous, mixed, and adenosquamous carcinoma. The various histological entities with an exophytic papillary lesions including warty carcinoma are together referred to as the "verruciform" group of neoplasms...
2017: Case Reports in Pathology
https://www.readbyqxmd.com/read/28152587/malignant-solitary-fibrous-tumor-with-heterologous-rhabdomyosarcomatous-differentiation-a-case-report
#20
Jeong-Hwa Kwon, Joon Seon Song, Hye Won Jung, Jong-Seok Lee, Kyung-Ja Cho
Malignant solitary fibrous tumor (MSFT) is a well-described entity, from which heterologous differentiation is extremely rare. We encountered a case of MSFT with rhabdomyosarcomatous differentiation in a 56-year-old man. This patient presented with a large mass in his posterior thigh. He had been treated with chemoradiation for sarcoma involving the cervical spine, right femoral head, and both lungs 6 months earlier. A wide excision was performed. The mass measured 10.6 cm and showed a fish-flesh cut surface with necrotic foci...
February 3, 2017: Journal of Pathology and Translational Medicine
keyword
keyword
79166
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"