Diagnosis of pili trianguli et canaliculi by frozen section: A rapid and inexpensive method of diagnosis

The female reproductive tract may be the site of a wide variety of benign and malignant tumors, as well as non-neoplastic tumor-like conditions, most of which can be diagnosed by light microscopic examination including special stains and more recently immunoperoxidase techniques. Nevertheless there are situations where ultrastructural examination can contribute substantially to an accurate and specific diagnosis. It is my opinion that electron microscopy can be of greatest benefit and is most cost effective when applied in conjunction with other methodologies. Thus, I have developed an approach which has proved useful for me and may have benefit for others. In cases where it is deemed of potential value, glutaraldehyde-fixed material is obtained at the time of frozen section or otherwise at operation. Coordination with the gynecologic oncologist is required in the latter situation. This material is processed and blocked and is available if a future need arises.

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Ultrastructure of Cryptorchidism and Seminoma

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100099143 ◽

1981 ◽

Vol 39 ◽

pp. 540-541

Author(s):

Shirley Siew ◽

Susan C. James

Keyword(s):

Malignant Tumors ◽

Frozen Section ◽

Malignant Potential ◽

Genetic Influences ◽

Endocrine Gland ◽

Medial Aspect ◽

Left Testis ◽

Bilateral Orchiectomy

Testicular maldescent is the most common endocrine gland abnormality, as 2.7% of mature neonates are cryptorchid. The significant complications are that there is a disturbance of normal maturation which results in diminished fertility and there is an increase in the malignant potential which is 35 times greater in the undescended than the descended testis. It is considered that genetic influences may be of etiological importance and recurrence has been described in some families. It is of interest, that the case reported here has 2 siblings who have also presented with cryptorchidism and malignant tumors.The propositus is 14 years old. He is well developed (described by some as obese) and shows normal secondary male characteristics except for an immature scrotum. Laparotomy showed both testes to be intraabdominal. A hard nodule (0.5cm) was palpated on the medial aspect of the left testis. Frozen section showed the presence of seminoma and bilateral orchiectomy was performed.

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Actin and α-tubulin immuno-EM labelings reveal differences in intra versus interphotoreceptor matrix

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100159874 ◽

1990 ◽

Vol 48 (3) ◽

pp. 466-467

Author(s):

Matti Järvilehto ◽

Riitta Harjula

Keyword(s):

Compound Eye ◽

Frozen Section ◽

Smooth Muscle Actin ◽

Photoreceptor Cells ◽

Immune Serum ◽

Cell Organelles ◽

Calliphora Erythrocephala ◽

Optical Axes ◽

Interphotoreceptor Matrix ◽

Similar Kind

The photoreceptor cells in the compound eyes of higher diptera are clustered in groups (ommatidia) of eight receptor cells. The cells from six adjacent ommatidia are organized into optical units, neuro-ommatia sharing the same visual field. In those ommatidia the optical axes of the photopigment containing structures (rhabdomeres) are parallel. The rhabdomeres of the photoreceptor cells are separated from each other by an interstitial i.e innerommatidial space (IOS). In the photoreceptor cell body, besides of the normal cell organelles, a cellular matrix is a structurally apparent component. Similar kind of reticular formation is also found in the IOS containing some unidentified filamentary substance, of which composition and functional significance for optical properties of vision is the aim of this report.The prefixed (2% PA + 0.2% GA in 0.1-n phosphate buffer, pH 7.4, for 1h), frozen section blocks of the compound eye of the blowfly (Calliphora erythrocephala) were prepared by immuno-cryo-techniques. The ultrathin cryosections were incubated with antibodies of monoclonal α-tubulin and polyclonal smooth muscle actin. Control labelings of excess of antigen, non-immune serum and non-present antibody were perforated.

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THE ACCURACY OF FROZEN SECTION OF UTERINE LESIONS IN THE PRACTICE OF GYNECOLOGIC SURGERY. A RETROSPECTIVE ASSESSMENT STUDY IN A GOVERNMENT TERTIARY TRAINING HOSPITAL

10.26226/morressier.599bdc78d462b80296ca0f26 ◽

2017 ◽

Author(s):

Jimmy Billod

Keyword(s):

Frozen Section ◽

Gynecologic Surgery ◽

Retrospective Assessment ◽

Assessment Study ◽

Tertiary Training

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Comparative evaluation of breast mammography, sonography, frozen section & permanent results from 2009-2013 in two hospitals

10.26226/morressier.5b4709826f4cb30010951ac4 ◽

2018 ◽

Author(s):

Pardis Rezaei Shirinabadi ◽

Mohammad Hossein Nossoohi Dehnavi

Keyword(s):

Comparative Evaluation ◽

Frozen Section

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Near Field EMC Scanning Method Based on an E-Field Collapse

ISTFA 2015: Conference Proceedings from the 41st International Symposium for Testing and Failure Analysis ◽

10.31399/asm.cp.istfa2015p0076 ◽

2015 ◽

Author(s):

Jeff Dunnihoo ◽

Pasi Tamminen ◽

Toni Viheriäkoski

Keyword(s):

Near Field ◽

Electronic Systems ◽

Inexpensive Method ◽

Scanning Method ◽

Field Information ◽

Novel Method ◽

Near Field Scanning

Abstract In this study we present a novel method to use a field collapse method together with fully automated near field scanning equipment to construct E- and H-field information of a system during transient ESD events. This inexpensive method provides an alternative way for system designers to validate and analyze the EMC/ESD capability of electronic systems without TLP pulsers, ESD simulators, or precision inductive current probes.

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RESEARCH ON VALUE OF INTRAOPERATIVE FROZEN SECTION EXAMINATION OF THE COMMON TUMORS AT HUE UNIVERSITY HOSPITAL

Journal of Medicine and Pharmacy ◽

10.34071/jmp.2011.6.8 ◽

2011 ◽

pp. 67-73

Author(s):

Cong Thuan Dang ◽

Thi Thu Thao Le

Keyword(s):

Sensitivity And Specificity ◽

Frozen Section ◽

Analysis Data ◽

Poor Quality ◽

University Hospital ◽

Frozen Sections ◽

Intraoperative Frozen Section ◽

Frozen Section Examination ◽

Incorrect Diagnosis ◽

The Common

Background: To evaluate the accuracy and the pitfalls of frozen section examination in diagnosis the common tumors at Hue University Hospital. Materials and method: A retrospective analysis data of 99 consecutive patients from 2007 to 2009 were evaluated and analyzed the major pitfalls. In our 99 patients, 100% cases we compared histological diagnosis on frozen sections with those on paraffin sections. Results: The majority of frozen section examinations were the thyroid lesions 37.4%, breast lesions 25.2%, lymph nodes 16.1%, ovary 9.1% and less common in other diseases (12.1%). The accuracy, sensitivity and specificity of the intraoperative frozen section examination were 93.9%, 89.1% and 98.1% respectively. The main factors causing incorrect diagnosis in frozen section are: Misinterpretation, poor quality of frozen sections, improper sampling in sectioning and difficult to result interpretation. Conclusion: The frozen section analysis of suspect lesions displays good sensitivity and specificity characteristics.

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