Follicular Cyst (follicular + cyst)

Distribution by Scientific Domains
Distribution within Medical Sciences


Selected Abstracts


Follicular cysts and hyperkeratoses as first manifestation, and involvement of the central nervous system as late manifestation of mycosis fungoides

JOURNAL OF THE EUROPEAN ACADEMY OF DERMATOLOGY & VENEREOLOGY, Issue 6 2005
PCM Van De Kerkhof
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Atypical papillary proliferation in gynecologic patients: A study of 32 pelvic washes,

DIAGNOSTIC CYTOPATHOLOGY, Issue 2 2005
Karyna C. Ventura M.D.
Abstract Papillary clusters in gynecologic pelvic washes frequently cause diagnostic challenges because they can be associated with borderline or malignant ovarian tumors, as well as benign pelvic diseases. The objective of our study was to review all pelvic washes with atypical papillary proliferation (APP) and investigate whether cytomorphology and/or immunohistochemistry on cell block could determine their origin. Thirty-two pelvic washes from 31 patients containing APP were reviewed and correlated with their corresponding gynecologic or pelvic disease. Previously obtained cell blocks with immunohistochemical (IHC) stains were reviewed also. Nine of 32 washes (28%) were overcalled as malignant and were from patients with 5 borderline serous ovarian tumors (BSTO), 1 ovarian follicular cyst, 1 serous cystadenofibroma, and 1 endometrial carcinoma with ovarian seromucinous cystadenoma. BSTO and endometriosis were the most common sources of APP. Cell blocks could not discriminate further the etiology of APP. Immunohistochemistry was performed rarely and not fully contributory. Caution in interpreting papillary groups and cytohistological correlation is recommended to prevent a high false positive rate. Diagn. Cytopathol. 2005;32:76,81. © 2005 Wiley-Liss, Inc. [source]


Bilateral aberrant axillary breast tissue mimicking lipomas: report of a case and review of the literature

JOURNAL OF CUTANEOUS PATHOLOGY, Issue 2007
Samer H. Ghosn
The masses exhibited similar consistency to the adjacent normal breast tissue but lacked an associated nipple complex. The clinical impression was lipoma; however, mammography, ultrasonography and skin biopsy revealed ectopic breast tissue. These findings were consistent with the diagnosis of aberrant breast tissue. A subset of ectopic mammary tissue, aberrant breast tissue may constitute a diagnostic challenge and is often misdiagnosed as lipoma, hidradenitis, follicular cyst, or lymphadenopathy. In addition, some studies have suggested that aberrant breast tissue may be at higher risk of malignant degeneration. Therefore, it's important that physicians be familiar with this condition as this may contribute to the early detection of ectopic breast cancer. [source]


A preclinical pharmacokinetic/pharmacodynamic approach to determine a dose of GnRH, for treatment of ovarian follicular cyst in cattle

JOURNAL OF VETERINARY PHARMACOLOGY & THERAPEUTICS, Issue 6 2004
S. MONNOYER
The objective of this study was to explore the value of a preclinical PK/PD approach to determine a gonadotropin-releasing hormone (GnRH) dose in cows using the pituitary LH response as a surrogate endpoint. Using an indirect effect model with stimulation of the LH entry rate, the in vivo basic pharmacodynamic parameters of GnRH were determined. The EC50 of GnRH was 51 ± 16 pg/mL, the EC50 being the GnRH plasma concentration able to produce 50% of the maximum possible stimulation (Smax) of the hypophysis (Smax = 48 ± 13). From individual PK/PD parameters, the ED50 of GnRH, i.e. the estimated dose of GnRH required to determine half the maximum possible stimulating effect on LH release, was calculated to 62 ,g/h per cow. Using the PK/PD model, the GnRH dose required to achieve a selected breakpoint value of 5 ng/mL for maximum LH concentration (surrogate value for LH concentration predicting clinical efficacy for cystic conditions), was 52 ± 18 ,g and for a standard GnRH dose of 100 ,g, the mean maximum plasma LH concentration predicted by the model was 7.22 ± 0.98 ng/mL. [source]


Immunohistochemical staining for calretinin is useful in the diagnosis of ovarian sex cord,stromal tumours

HISTOPATHOLOGY, Issue 5 2001
W G McCluggage
Immunohistochemical staining for calretinin is useful in the diagnosis of ovarian sex cord,stromal tumours Aims:,Ovarian sex cord,stromal tumours are a heterogeneous group of neoplasms which may be confused morphologically with a wide variety of tumours. Calretinin positivity has previously been demonstrated in a small number of ovarian sex cord,stromal tumours. The aim of this study was to investigate calretinin staining in a series of these tumours and their histological mimics in order to determine the value of calretinin staining in a diagnostic setting. Methods and results:,Seventy-two neoplasms, including 37 ovarian sex cord,stromal tumours and 35 miscellaneous neoplasms which may enter into the differential diagnosis, were stained with a commercially available polyclonal antibody against calretinin. All sex cord,stromal tumours exhibited positivity except for a single fibrothecoma. In this group of tumours staining was generally diffuse and strong. Small numbers of the miscellaneous group of neoplasms exhibited positivity but this tended to be focal and weak, although this was not always the case. There was consistent strong positive staining of granulosa cells in follicular cysts and corpora lutea. There was also positive staining of luteinized stromal cells in two cases of ovarian stromal hyperplasia and hyperthecosis. Conclusions:,Calretinin is a sensitive immunohistochemical marker of ovarian sex cord,stromal tumours and may be useful in a diagnostic setting. However, the value is somewhat limited since occasional neoplasms which enter into the morphological differential diagnosis may be positive. Be that as it may, calretinin positivity may be of value in the diagnosis of an ovarian sex cord,stromal tumour and its differentiation from other neoplasms. In this regard, calretinin should always be used as part of a larger panel. [source]


Localized lymphedema (elephantiasis): a case series and review of the literature

JOURNAL OF CUTANEOUS PATHOLOGY, Issue 1 2009
Song Lu
Background:, Lymphedema typically affects a whole limb. Rarely, lymphedema can present as a circumscribed plaque or an isolated skin tumor. Objective:, To describe the clinical and pathologic characteristics and etiologic factors of localized lymphedema. Methods:, Case,control study of skin biopsy and excision specimens histologically diagnosed with lymphedema and presenting as a localized skin tumor identified during a 4-year period. Results:, We identified 24 cases of localized lymphedema presenting as solitary large polyps (11), solid or papillomatous plaques (7), pendulous swellings (4), or tumors mimicking sarcoma (2). Patients were 18 females and 6 males with a mean age of 41 years (range 16,74). Anogenital involvement was most frequent (75%) , mostly vulva (58%), followed by eyelid (13%), thigh (8%) and breast (4%). Causative factors included injury due to trauma, surgery or childbirth (54%), chronic inflammatory disease (rosacea, Crohn's disease) (8%), and bacterial cellulitis (12%). Eighty-five percent of these patients were either overweight (50%) or obese (35%). Compared with a series of 80 patients with diffuse lymphedema, localized lymphedema patients were significantly younger (41 vs. 62 years old, p = 0.0001), had no history of cancer treatment (0% vs. 18%, p = 0.03), and had an injury to the affected site (54% vs. 6%, p = 0.0001). Histologically, all cases exhibited dermal edema, fibroplasia, dilated lymphatic vessels, uniformly distributed stromal cells and varying degrees of papillated epidermal hyperplasia, inflammatory infiltrates and hyperkeratosis. Tumor size significantly and positively correlated with history of cellulitis, obesity, dense inflammatory infiltrates containing abundant plasma cells, and lymphoid follicles (p < 0.05). A history of cellulitis, morbid obesity, lymphoid follicles and follicular cysts predicted recurrent or progressive swelling despite excision (p < 0.05). Conclusions:, Localized lymphedema should be considered in the etiology of skin tumors when assessing a polyp, plaque, swelling or mass showing dermal edema, fibrosis and dilated lymphatics on biopsy. A combination of lymph stasis promoting factors (trauma, obesity, infection and/or inflammatory disorders) produces localized elephantiasis. [source]


Second Oestrus Synchronization and Precocious Embryo Viability after Puberty Induction in Gilts by the Use of Gonadotrophin Treatment

REPRODUCTION IN DOMESTIC ANIMALS, Issue 2 2005
V Do Lago
Contents The use of exogenous gonadotrophins in puberty inducement and ovulation synchronization is a technique that has a positive influence on the management of swine. The purpose of this study was to verify the effects of a second gonadotrophin treatment [equine chorionic gonadotrophin (eCG) and luteinizing hormone (LH), intramuscularly (i.m.)] upon the second oestrus synchronization and fertility in gilts. Seventy-one NAIMA® (Pen Ar Lan) gilts had their first oestrus (puberty inducement) induced by a hormonal treatment (eCG and LH). Then, they were randomly distributed into two treatments, with (T1) and without (C) gonadotrophin treatment at the second oestrus. The animals were fed with a single ration (16% of crude protein and 3286.73 kcal ME/kg), and timed artificial insemination performed at the second oestrus. Gilts were slaughtered for embryo recovery and ovary examination about 5 days after insemination. There was no evidence of a difference in the percentage of the second oestrus expression (T1 , 90.90% and C , 86.84%), the duration of the oestrus cycle (T1 , 19.62 ± 0.82 days and C , 19.67 ± 4.14 days), the percentage of follicular cysts (T1 , 15.15% and C , 18.42%) and number of ovulations (T1 , 14.60 ± 5.7 and C , 13.23 ± 4.8) between treatments (p > 0.05). However, the hormonal treatment (T1) showed minor oestrus dispersion and embryo viability (T1 , 8.4 ± 5.6 and C , 11.2 ± 4.6) (p < 0.05). These results indicate that the better synchronization and expression of the second oestrus when using gonadotrophins (eCG and LH) is followed by a lower embryo viability, which is probably the consequence of the heterogeneous follicle recruitment during the injection of eCG. [source]