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https://www.readbyqxmd.com/read/28346303/eccrine-syringofibroadenoma-in-association-with-acquired-epidermodysplasia-verruciformis
#1
Timothy Tan, Joan Guitart, Luzheng Lisa Liu, Joaquin C Brieva, Sapna Amin, Monica Rani, Pedram Gerami, Pedram Yazdan
A 75-year-old man with human immunodeficiency virus infection and numerous biopsy-proven warts for 10 years, refractory to cryosurgery, cimetidine, and topical imiquimod, presented with numerous pink to hypopigmented verrucous papules and plaques involving the face, trunk, buttocks, and groin. Laboratory evaluation revealed a CD4 T-cell count of 62 cells per microliter and human immunodeficiency virus viral load of <117 copies per milliliter. Biopsy of a plaque groin lesion was performed. Histopathology revealed vertically oriented anastomosing strands of basaloid epithelium arising from multiple points along the epidermis in a background fibrovascular stroma...
January 3, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28343229/cytological-findings-of-ascitic-fluid-with-a-malignant-ovarian-steroid-cell-tumor-a-case-report-and-literature-review
#2
Nobuaki Kosaka, Kiyoshi Hasegawa, Kaori Kiuchi, Shoko Ochiai, Tamiko Nagai, Hiromi Machida, Yasuo Imai, Ichio Fukasawa
BACKGROUND: Ovarian steroid cell tumors (SCTs) are rare and usually benign, although 25-43% are reportedly malignant. The cytologic findings of these rare ovarian tumors have almost never been reported. CASE: We report a rare case of a malignant ovarian SCT with peritoneal dissemination and malignant ascites in a 40-year-old woman. Her tumor was classified as stage IIB (pT2bNoM0) according to the FIGO (International Federation of Gynecology and Obstetrics) classification system, and she was treated with adjuvant chemotherapy following staging laparotomy...
March 25, 2017: Acta Cytologica
https://www.readbyqxmd.com/read/28331757/inflammatory-myofibroblastic-tumor-of-the-breast-coexisting-with-pseudoangiomatous-stromal-hyperplasia
#3
Canan Kelten Talu, Yasemin Çakır, Ezgi Hacıhasanoğlu, Cem Leblebici, Şefika Aksoy, Mehmet Ali Nazlı
Inflammatory myofibroblastic tumors (IMTs) are uncommon breast lesions that consist of spindle cells accompanied by plasma cell-rich inflammatory infiltration, which may mimic breast cancer clinico-radiologically. A woman aged 38 years with a breast mass was referred to our general surgery clinic. The physical examination revealed a mass with irregular borders in the upper outer quadrant of the left breast. In mammography, the lesion was 15 mm in diameter with a spheric form and high density. Ultrasonographically, the mass was solid, heterogeneous, and hypoechoic with posterior enhancement...
October 2016: J Breast Health (2013)
https://www.readbyqxmd.com/read/28329563/subungual-pleomorphic-fibroma-a-case-report-and-review-of-the-literature
#4
Pierre Halteh, Cynthia M Magro, Shari R Lipner
We describe an interesting case of pleomorphic fibroma of the subungual region in a middle aged woman who presented with a recurrence of thickening, lateral ridging, and a midline split of the right third fingernail, 20 years after initial excision. Histology of the specimen demonstrated hyperchromatic stellate cells within the superficial corneum, which were CD34 positive, consistent with a pleomorphic fibroma. Pleomorphic fibroma is a rare mesenchymal neoplasm characterized by atypical spindled cells amidst a collagenous stroma...
November 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28326746/histopathological-evaluation-of-intrauterine-polyps-and-scrapings-of-the-uterine-cavity-in-women-with-endometrial-polyp-described-in-ultrasound
#5
Malgorzata Radowicka, Ewa Legutowska, Malgorzata Gajewska, Miroslaw Wielgos
OBJECTIVES: The aim of the study was to analyze the histopathology results of polyps removed and scrapings taken from the uterus in women, in whom ultrasound described endometrial polyp. METHODS: The study included 412 patients whose ultrasound described endometrial polyp in the uterine cavity. The material obtained during hysteroscopy or curettage of the uterine cavity were subjected to the histological evaluation. The study group was divided into two subgroups depending on the presence of symptoms...
December 2016: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28325366/whorling-cellular-perineurioma-a-previously-undescribed-variant-closely-mimicking-monophasic-fibrous-synovial-sarcoma
#6
Michael Michal, Dmitry V Kazakov, Abbas Agaimy, Marta Hosova, Kvetoslava Michalova, Petr Grossmann, Petr Steiner, Faruk Skenderi, Semir Vranic, Michal Michal
The authors present a distinctive perineurioma (PN) variant which morphologically strongly resembles monophasic fibrous synovial sarcoma (MSS). The patients were 3 males and 1 female. The age ranged from 15 to 61years (mean: 44years). Locations included the sole, lower jaw, palm and foot. The tumor size ranged from 1.3cm to 2.5cm in the largest dimension (mean 1.8cm). Morphologically, all tumors had an identical, monotonous appearance. The perineurial cells were closely packed and created a confluent cellular whorls and/or sheets in a scarce stroma, with only focally discernible long, slender cytoplasmic processes typical for perineurial differentiation...
April 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28321517/long-term-follow-up-study-of-gastric-adenoma-tumor-associated-macrophages-are-associated-to-carcinoma-development-in-gastric-adenoma
#7
Daiki Taniyama, Kiyomi Taniyama, Kazuya Kuraoka, Junichi Zaitsu, Akihisa Saito, Hirofumi Nakatsuka, Naoya Sakamoto, Kazuhiro Sentani, Naohide Oue, Wataru Yasui
BACKGROUND: Some gastric adenomas may progress to adenocarcinoma in a short time, but others remain as adenoma for a long time. METHODS: Among 1138 cases diagnosed as adenoma by biopsy at Kure Medical Association Hospital between 1990 and 2010, 51 adenomas were enrolled. Of these, 28 adenomas (group A) were followed for 60 months or longer with no progression to adenocarcinoma within 60 months, and the other 23 adenomas (group B) were upgraded to carcinoma by consecutive biopsies performed within 1 year after the first biopsy...
March 20, 2017: Gastric Cancer
https://www.readbyqxmd.com/read/28319569/survivin-expression-in-simple-endometrial-polyps-and-tamoxifen-associated-endometrial-polyps
#8
Ayse F Gokmen Karasu, Fatma C Sonmez, Serdar Aydin, Ilknur Adanir, Mustafa Marasli, Gulsah K Ilhan
Endometrial polyps are benign pathologies originating as localized overgrowths of basal endometrium. Risk factors include endogenous and exogenous estrogen excess and tamoxifen (TAM) exposure. Our main objective was to investigate the role of an apoptosis-inhibiting protein, survivin, in endometrial polyps. We performed a cross-sectional, analytical study; our samples were obtained from the archives of Department of Pathology. Sixty samples were included, comprising 20 TAM polyps, 20 simple endometrial polyps, and 20 cases of simple endometrial hyperplasia without atypia not associated with TAM use...
March 17, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28318774/-epithelioid-angiomyolipoma-of-the-kidney-about-one-case-and-malignant-features-evaluation
#9
Pierre-Marie Lavrut, Philippe Paparel, Myriam Decaussin-Petrucci
Renal epithelioid angiomyolipoma (E-AML) is a rare mesenchymal tumor of the kidney included in the family of tumor with perivascular epithelioid cell differentiation (PEComas) and is frequently associated with tuberous sclerosis complex. Since its clinical and radiological features are not specific, the diagnosis remained mostly pathological. Microscopically, E-AML demonstrate proliferation of more than 80% of epithelioid cells with atypia, often associated with necrosis, hemorrhage, mitotic activity and vascular invasion...
March 16, 2017: Annales de Pathologie
https://www.readbyqxmd.com/read/28318112/diagnostic-dilemmas-and-pitfalls-in-thinprep-%C3%A2-cytology-of-breast-fine-needle-aspiration-biopsy-report-of-six-cases-with-histological-correlates
#10
Jose Victor Scarpa Carniello, Fresia Pareja, Maria Laureana Santos-Zabala, Marcia Edelweiss
Fine needle aspirations (FNA) of the breast for primary diagnoses have become less popular in the USA and are usually performed for lesions with low or extremely high clinical suspicion. They are also performed for lesions in close proximity to a breast implant. Liquid-based cytological preparations, such as ThinPrep(®) (TP), provide a practical alternative to clinicians who are performing FNA. Using a selection of cases that represent challenging diagnoses, we describe common diagnostic pitfalls of breast FNA that are specifically associated with this preparation...
March 20, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28317591/renal-myolipoosteoma-a-distinctive-lesion-in-a-child
#11
REVIEW
Hongbiao Jing, Tailing Li, Shujian Zhai, Yan Xi, Qingda Meng
We describe a distinctive renal tumor, a myolipoosteoma (MLO), in an 11-year-old boy who presented with a 6-month history of slight right flank intermittent pain. A gross examination revealed a well-defined, 5.5 cm mass with bone-like consistency. The lesion histologically featured an admixture of mature adipose tissue, spindle cells, and bony components. No atypia, mitotic activity, or pleomorphisms were observed in the tumor. The spindle cells were smooth muscle actin (SMA) and desmin positive but HMB45 and Melan-A negative, indicating that they were of a muscular nature and differed from that of angiomyolipoma (AML)...
March 2017: Surgical Oncology
https://www.readbyqxmd.com/read/28316088/gata3-expression-in-benign-prostate-glands-with-radiation-atypia-a-diagnostic-pitfall
#12
Wei Tian, David Dorn, Shi Wei, Ronald D Sanders, Andres Matoso, Rajal B Shah, Jennifer Gordetsky
OBJECTIVE: Patients who have undergone prostate radiation are at an increased risk for developing urothelial carcinoma. Radiation changes can cause significant cytologic atypia in benign prostate glands that may mimic pagetoid spread of urothelial carcinoma. GATA3 is a common marker to differentiate prostatic adenocarcinoma from urothelial carcinoma. We investigated the expression of GATA3 in the epithelium of irradiated benign and malignant prostate tissue. METHODS: We performed a retrospective review of prostate cases with radiation atypia...
March 17, 2017: Histopathology
https://www.readbyqxmd.com/read/28303349/multicolor-immunofluorescence-reveals-that-p63-and-or-k5-positive-progenitor-cells-contribute-to-normal-breast-epithelium-and-usual-ductal-hyperplasia-but-not-to-low-grade-intraepithelial-neoplasia-of-the-breast
#13
Werner Boecker, Göran Stenman, Tina Schroeder, Udo Schumacher, Thomas Loening, Lisa Stahnke, Catharina Löhnert, Robert Michael Siering, Arthur Kuper, Vera Samoilova, Markus Tiemann, Eberhard Korsching, Igor Buchwalow
We contend that knowledge about the cellular composition of normal breast epithelium is a prerequisite for understanding proliferative breast disease. Against this background, we used multicolor immunofluorescence to study normal breast epithelium and two types of intraepithelial proliferative breast lesion for expression of the p63, basal keratin K5, glandular keratin K8/18, SMA, ER-alpha, and Ki67. We studied eight normal breast epithelium samples, 12 cases of usual ductal hyperplasia, and 33 cases of low-grade intraepithelial neoplasia (9 flat epithelial atypia, 14 low-grade ductal carcinoma in situ and 10 cases of lobular neoplasia)...
March 16, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28299811/the-role-of-interleukin-1b-and-its-antagonist-diacerein-in-estradiol-benzoate-induced-endometrial-hyperplasia-and-atypia-in-female-rats
#14
Marwa M M Refaie, Maram El-Hussieny
Endometrial hyperplasia (EH) is a common gynecological condition and may progress to carcinoma. We investigated the effect of diacerein (DIA) on estradiol benzoate (EB)-induced EH and atypia. DIA (50mg/kg/day) was administered orally to rats for 4 weeks, in the presence or absence of EH induced by intramuscular (im) injection of EB (60μg/100g) 3 times per week for 4 weeks. We measured levels of serum total cholesterol, uterine tissue malondialdehyde (MDA), total nitrites (NOx ), superoxide dismutase (SOD) activity, caspase-3, interleukin-1b (IL-1b) immunoexpressions and histopathology...
March 16, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28299002/impression-cytology-in-a-series-of-clinically-diagnosed-ocular-surface-melanocytic-lesions
#15
Mozhgan Rezaei Kanavi, Seyed Bagher Hosseini, Roshanak Aliakbar-Navahi, Hossein Aghaei
PURPOSE: To report impression cytology (IC) results of clinically diagnosed ocular surface melanocytic lesions. METHODS: Ten patients with a clinical diagnosis of an ocular surface melanocytic lesion underwent IC using cellulose acetate strips and Periodic acid Schiff-Papanicolaou staining. Excisional biopsy of lesions was performed in case of observing atypical cells on IC or at the patient's request, and excised specimens were subjected to histopathological analysis...
January 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/28298998/condylar-intramedullary-intraosseous-lipoma-contribution-of-a-new-case-and-review-of-the-literature
#16
Alba Sanjuan, Alicia Dean, Blas Garcia, Francisco Alamillos, Elisa Roldan, Antonio Blanco
BACKGROUND: Lipoma is the most common benign tumour of the human body, being intraosseous involvement very rare. Just 1 to 4% of all cases of lipoma are located in the oral cavity, only 0.1% being intraosseous. The jaw is its most uncommon bone location. Etiology of intraosseous lipoma (IOL) is unknown, although several theories have been proposed. Usually asymptomatic, the symptoms, when present, will depend on its location and size. Its origin may be intraosseous or juxtacortical. A biopsy is essential for diagnosis, and definitive treatment involves resection or curettage of the lesion...
March 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28296741/a-cyclin-d1-positive-diffuse-large-b-cell-lymphoma-of-germinal-center-b-cell-like-subtype-in-the-right-tonsil-a-rare-case-report
#17
Changrui Jiang, Xiuying Shi, Chuifeng Fan
INTRODUCTION: Cyclin D1-positive tumor cells are commonly found in mantle cell lymphoma but they are very rare in diffuse large B-cell lymphoma. CLINICAL FINDINGS/PATIENT CONCERNS: Here we present a rare case of cyclin D1-positive diffuse large B-cell lymphoma in the right tonsil of a 50-year-old man. Computed tomographic imaging detected a mass, about 2.5 cm × 1.8 cm in size, in the left side of the oropharynx. DIAGNOSES: Microscopically, the tumor cells were located under the pharyngeal mucosa and diffusely arranged...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28296665/papillomas-of-the-breast-factors-associated-with-underestimation
#18
Gabriela Boufelli, Marcelo A Giannotti, Carlos A Ruiz, Nestor de Barros, Luciano F Chala, Jonathan Y Maesaka, Rodrigo Goncalves, Bárbara H Bresciani, Paula Vianna, José M Soares, Edmund C Baracat, José R Filassi
The distinction between benign and malignant papilloma of the breast through percutaneous needle biopsy can be difficult because of limited samples; the underestimation rate can be up to 25%. The aim of this study is to identify clinical and histological factors associated with underestimation, invasive ductal carcinoma, or ductal in-situ carcinoma (DCIS) of the breast found in surgical specimens from papillary lesions. This may contribute toward selection of patients for a follow-up strategy without the need for surgical excision...
March 14, 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28296267/can-noninvasive-follicular-thyroid-neoplasm-with-papillary-like-nuclear-features-be-distinguished-from-classic-papillary-thyroid-carcinoma-and-follicular-adenomas-by-fine-needle-aspiration
#19
Tamar C Brandler, Fang Zhou, Cheng Z Liu, Margaret Cho, Ryan P Lau, Aylin Simsir, Kepal N Patel, Wei Sun
BACKGROUND: Noninvasive encapsulated follicular variant of papillary thyroid carcinoma, a diagnosis implying malignancy as a variant of papillary thyroid carcinoma (PTC), has recently been reclassified to noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) on surgical pathology. Due to the effects of such a recategorization on rate of malignancy and clinical management algorithms, it is imperative that we explore whether presurgical fine-needle aspiration can differentiate NIFTP from PTC and follicular adenoma (FA)...
March 10, 2017: Cancer
https://www.readbyqxmd.com/read/28293014/-intrapulmonary-solitary-fibrous-tumor-report-of-a-case
#20
Yoshimasa Tokunaga, Taku Okamoto, SungSoo Chang
An abnormal lung shadow was detected in a 39-year-old woman at physical examination and she was followed-up carefully at a nearby hospital. After 5 years follow-up, the patient was referred to our hospital for further examination of the abnormal shadow. A chest computed tomography(CT) scan revealed a 12 mm well-circumscribed nodular shadow in the right lower lobe. A benign tumor such as a hamartoma was suspected preoperatively;video-assisted thoracic surgery was performed for both diagnosis and treatment. Partial resection of the right lower lobe was performed and the tumor was diagnosed as an intrapulmonary solitary fibrous tumor (SFT)...
March 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
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