keyword
MENU ▼
Read by QxMD icon Read
search

Embryology

keyword
https://www.readbyqxmd.com/read/28934256/transcriptome-analysis-of-sex-related-genes-in-the-blood-clam-tegillarca-granosa
#1
Heng Chen, Guoqiang Xiao, Xueliang Chai, Xingguan Lin, Jun Fang, Shuangshuang Teng
BACKGROUND: Blood clams (Tegillarca granosa) are one of the most commercial shellfish in China and South Asia with wide distribution in Indo-Pacific tropical to temperate estuaries. However, recent data indicate a decline in the germplasm of this species. Furthermore, the molecular mechanisms underpinning reproductive regulation remain unclear and information regarding genetic diversity is limited. Understanding the reproductive biology of shellfish is important in interpreting their embryology development, reproduction and population structure...
2017: PloS One
https://www.readbyqxmd.com/read/28932042/small-cell-neuroendocrine-carcinoma-of-the-paranasal-sinus-with-intraoral-involvement-report-of-a-rare-case-and-review-of-the-literature
#2
Anita Spadigam, Anita Dhupar, Shaheen Syed, Shruti U Nagvekar
The diffuse neuroendocrine system continues to be an enigmatic topic of study in pathology due to its controversial embryologic origins, biology and a variety of tumors engendered. Originally thought to be localized to the classic neuroendocrine organs (pituitary, thyroid, pancreas and adrenal medulla), the neuroendocrine cells are now known to be distributed in every organ system of the body. A number of human diseases have been linked to aberrations in the functioning of the neuroendocrine cells. Neoplasms of the neuroendocrine system can thus occur in myriad primary sites and range in behavior from benign to lethal...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28930831/accessory-spleen-located-in-the-right-parietal-peritoneum-the-first-case-report
#3
Shao-Yan Xu, Ke Sun, Hai-Yang Xie, Lin Zhou, Shu-Sen Zheng, Weilin Wang
RATIONALE: Accessory spleen is a congenital abnormality caused by failure of the splenic anlage to fuse during embryology. The presence of an accessory spleen located in the parietal peritoneum has not been reported so far, and an accessory spleen situated on the right side is extremely rare. In the present study, we describe the first case of an accessory spleen located in the right parietal peritoneum. PATIENTS CONCERNS: A 65-year-old man, presented with pain in his left abdomen for 1 month...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28929000/successful-vaginal-delivery-of-naturally-conceived-dicavitary-twin-in-didelphys-uterus-a-rare-reported-case
#4
Houda Nasser Al Yaqoubi, Nishat Fatema
Didelphys uterus, or double uterus, is an embryological developmental malformation of the müllerian ducts with the incidence of approximately 8.3% of all müllerian duct abnormalities (MDAs). Didelphys uterus accompanying dicavitary twin gestation is encountered as a very rare entity with overall incidence of about 1 in 1,000,000. We report a rare case of didelphys uterus, diagnosed since her first pregnancy, and during her fourth pregnancy she conceived dicavitary twin naturally without any infertility treatment...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28928621/anomalous-origin-of-the-left-brachiocephalic-artery-in-the-right-aortic-arch-is-there-a-method-to-the-madness
#5
Mani Ram Krishna, Ganesh Kumar Gnanappa, Rachel Fitzpatrick, Julian Ayer, David Winlaw
The anomalous origin of the left brachiocephalic artery in a right sided aortic arch is a rare vascular ring which might lead to esophageal compression. The exact embryological origin of this anomaly is still widely debated. We present an infant who presented with esophageal compression symptoms and review the various hypotheses about the embryological origin of this anomaly.
September 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28927754/motility-disorders-in-infants
#6
I J N Koppen, M A Benninga, M M J Singendonk
Gastrointestinal motility disorders are common in the pediatric population and may affect the entire gastrointestinal tract and can vary from mild to severe conditions. They may clinically manifest as gastro-esophageal reflux symptoms, feeding difficulties and failure to thrive, constipation and diarrhea amongst others. This review first highlights the embryologic development of the gastrointestinal tract, after which the prenatal and neonatal development of gastrointestinal motility is discussed. Normal motility patterns as seen in (preterm) infants are described as a background for the discussion of the most common congenital and acquired motility disorders in infancy...
September 16, 2017: Early Human Development
https://www.readbyqxmd.com/read/28927574/pronator-teres-accessorius-a-new-variant-in-flexor-antebrachial-musculature
#7
S Kumari, P Chauhan, M Kathole, J Arora, R K Suri, M Kohli
Muscles of flexor compartment of forearm have a common origin from medial epicondyle of humerus. Additional bellies of flexor muscles are commonly reported but presence of supernumerary muscles is an infrequent phenomenon. The present study describes an unusual muscle mass in flexor compartment of forearm simulating pronator teres. During routine dissection the upper limb of a 50 years old male cadaver, a supernumerary muscle was found on left side of the upper limb in the flexor compartment. The origin of the muscle was 2cm wide and aponeurotic in nature and attached to an oblique line extending from the inferior surface of the medial epicondyle and the medial surface of the trochlea...
September 15, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28922305/mayer-rokitansky-k%C3%A3-ster-hauser-syndrome-with-bilateral-ovarian-sertoli-cell-tumors-review-of-the-literature-and-report-of-a-rare-case
#8
Alexander L Juusela, Ilana Naghi, Suresh Thani
BACKGROUND: Patients with Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome are infertile secondary to hypoplasia or complete agenesis of the uterus, yet they remain at risk of primary neoplasms of the ovaries because embryologically the uterus and ovaries develop via separate mechanisms. CASE: A 72-year-old nulliparous woman with a history of primary amenorrhea underwent an exploratory laparotomy for a suspected uterine fibroid. In addition to the pelvic mass, the patient was found to have findings consistent with MRKH syndrome...
September 15, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28904927/cervical-lymph-nodes-harbinger-of-benign-inclusions-as-well-as-metastatic-deposits-of-thyroid-malignancy
#9
Samarth Shukla, Sourya Acharya
Lymph nodes can be harbinger to benign epithelial inclusions as well as metastatic deposits. Cervical lymph nodes are home to benign epithelial inclusions from thyroid better known as lateral aberrant thyroid as well as inclusions from salivary gland due to the unique embryologic origins of nodes with these organs. We present a case of a young female suspected of thyroid malignancy who was intraoperative diagnosed by frozen sections with papillary carcinoma of the thyroid along with bilateral cervical nodes (Level I-V) positive for reactive lymphadenopathy with Level II node being positive to benign salivary gland inclusions and Level VI node being positive to metastatic deposits of papillary carcinoma of the thyroid...
July 2017: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/28904574/multicentric-chordoma-in-a-child
#10
Shighakolli Ramesh, Raju Subodh, Srinadh Boppana, Erukkambattu Jayashankar
Chordomas are primary malignant bone tumors that arise in the axial skeleton, believed to originate from remnants of embryologic notochordal cell rests. Multicentric origin of chordoma is extremely rare. To our literature search, we found only three cases of multicentric chordoma in adults. We report a first case of multicentric chordoma in pediatric age group. A 14-month-old child presented with torticolis and left upper limb monoparesis, imaging showed expansile bony destructive lesion in clivus and dorsal spine simultaneously...
April 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/28903188/hair-on-hair-static-friction-coefficient-can-be-determined-by-tying-a-knot
#11
Nicolas R Chevalier
Characterizing the tribological properties of the hair-hair interface is important to quantify the manageability of hair and to assess the performance of hair care products. Audoly et al. (Phys. Rev. Lett. 99, 164301, 2007) derived an equation relating the self-friction coefficient of an elastic fiber to the dimensions of a simple, relaxed overhand knot made from this fiber. I experimentally tested and validated their equation using nylon thread and an independent measurement of its self-friction coefficient...
September 4, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28892466/malignant-transformation-of-a-tailgut-cyst
#12
Gianrocco Manco, Giovanni Giliberti, Giovanni Rolando, Fabio Gelsomino, Elena Zunarelli, Aldo Rossi
INTRODUCTION: Tailgut cyst are congenital cystic lesion arising from remnant of the embryological postnatal gut. Tailgut cyst are multinodular, uncapsulated and usually well-circumscribed. Presacral cysts are rare in adult and most of the lesions are benign. Malignant degeneration can occur, however is extremely rare. CASE REPORT: We present the case of a 74 years old woman with slow increase in size and malignant degeneration of a tailgut cyst. Five years before, during the follow up after mastectomy for cancer, she manifested rise of CA 19-9 tumor marker and a presacral cystic collection on thoraco-abdominal CT...
July 5, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28890677/the-role-of-the-multidisciplinary-team-in-the-management-of-deep-infiltrating-endometriosis
#13
REVIEW
Lilian Ugwumadu, Rima Chakrabarti, Elaine Williams-Brown, John Rendle, Ian Swift, Babbin John, Heather Allen-Coward, Emmanuel Ofuasia
The multidisciplinary team (MDT) is considered good practice in the management of chronic conditions and is now a well-established part of clinical care in the NHS. There has been a recent drive to have MDTs in the management of women with severe endometriosis requiring complex surgery as a result of recommendations from the European Society for Human Reproduction and Embryology (ESHRE) and British Society for Gynaecological Endoscopy (BSGE). The multidisciplinary approach to the management of patients with endometriosis leads to better results in patient outcomes; however, there are potentially a number of barriers to its implementation and maintenance...
2017: Gynecological Surgery
https://www.readbyqxmd.com/read/28890314/bilateral-clavicular-attachment-of-omohyoid-muscle
#14
N Singh, M Kathole, J Kaur, V Mehta, R K Suri, G Rath, M Kohli
Omohyoid muscle present in cervical region is of particular importance to anatomists as it defines anteriorly the carotid triangle and divides the posterior cervical triangle. It has superior and inferior bellies and an intermediate common tendon. Like sternohyoid, sternothyroid and thyrohyoid muscles, omohyoid is also an infrahyoid muscle, but it differs from them in its course. The infrahyoid muscles are formed from a muscle primordium occurring in the anterior cervical area. Anderson (Anderson, 1881) theorized that the superior belly of the omohyoid muscle is a true infrahyoid muscle, whereas the inferior belly most likely shares a common embryology with the subclavius muscle...
September 7, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28885087/encephalocele-development-from-a-congenital-meningocele-case-report
#15
Gurpreet S Gandhoke, Ezequiel Goldschmidt, Robert Kellogg, Stephanie Greene
A fetal MRI study obtained at 21 weeks' gestation revealed a suboccipital meningocele without hydrocephalus. One day after term birth, MRI demonstrated an acquired cerebellar encephalocele, and MRI obtained 5 months later showed progressive enlargement of the encephalocele, still without obvious hydrocephalus. The patient underwent an operation in which an external ventricular drain was placed, the grossly normal cerebellum was reduced into the posterior fossa without resection, and the dural defect was closed...
September 8, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28879095/unilateral-complete-agenesis-of-mesonephric-duct-derivatives-in-an-82-year-old-male-cadaver-embryology-anatomy-and-clinical-considerations
#16
David G Darcy, Morgen Yao-Cohen, Todd R Olson, Sherry A Downie
Development of urogenital anatomy in the human fetus is the result of a complex interplay between multiple different tissues. The time course of development is well documented and the morphologic outcomes of insults at various time points during development are predictable. We present a cadaveric case of unilateral agenesis of the left kidney, ureter, bladder hemitrigone, ureteric opening, seminal vesicle, vas deferens, and epididymis. Failure of development of the mesonephric duct early during embryogenesis, likely between the third and fifth week, caused ipsilateral urogenital organ agenesis...
November 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28878954/brainstem-dermoid-cyst-rupture-with-hydrocephalus-in-a-child
#17
Elias Antoniades, Marios Themistocleous, Evangelos Drosos, Dimitrios Giakoumettis, Kyriakos Paraskeva, Panagiotis-Athanasios Georgis, George Sfakianos
Intracranial dermoid cysts are ectodermal lesions of embryological origin. They are of slow progression and symptoms associated with unruptured cysts are most commonly due to mass effect. However, a potential rupture in the ventricular system is rare and can cause meningitis, seizures and hydrocephalus. Hereby, we report a case of a 12-year-old boy presenting with obstructive hydrocephalus due to brainstem dermoid cyst rupture.
September 2017: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/28873086/anti-mullerian-hormone-and-endometrial-cancer-a-multi-cohort-study
#18
Renée T Fortner, Helena Schock, Seungyoun Jung, Naomi E Allen, Alan A Arslan, Louise A Brinton, Brian L Egleston, Roni T Falk, Marc J Gunter, Kathy J Helzlsouer, Annika Idahl, Theron S Johnson, Rudolf Kaaks, Vittorio Krogh, Eva Lundin, Melissa A Merritt, Carmen Navarro, N Charlotte Onland-Moret, Domenico Palli, Xiao-Ou Shu, Patrick M Sluss, Paul N Staats, Antonia Trichopoulou, Elisabete Weiderpass, Anne Zeleniuch-Jacquotte, Wei Zheng, Joanne F Dorgan
BACKGROUND: The Mullerian ducts are the embryological precursors of the female reproductive tract, including the uterus; anti-Mullerian hormone (AMH) has a key role in the regulation of foetal sexual differentiation. Anti-Mullerian hormone inhibits endometrial tumour growth in experimental models by stimulating apoptosis and cell cycle arrest. To date, there are no prospective epidemiologic data on circulating AMH and endometrial cancer risk. METHODS: We investigated this association among women premenopausal at blood collection in a multicohort study including participants from eight studies located in the United States, Europe, and China...
September 5, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28871591/network-of-breathing-multifunctional-role-of-the-diaphragm-a-review
#19
Janusz Kocjan, Mariusz Adamek, Bożena Gzik-Zroska, Damian Czyżewski, Mateusz Rydel
The diaphragm is the primary muscle involved in active inspiration and serves also as an important anatomical landmark that separates the thoracic and abdominal cavity. However, the diaphragm muscle like other structures and organs in the human body has more than one function, and displays many anatomic links throughout the body, thereby forming a 'network of breathing'. Besides respiratory function, it is important for postural control as it stabilises the lumbar spine during loading tasks. It also plays a vital role in the vascular and lymphatic systems, as well as, is greatly involved in gastroesophageal functions such as swallowing, vomiting, and contributing to the gastroesophageal reflux barrier...
2017: Advances in Respiratory Medicine
https://www.readbyqxmd.com/read/28871557/anatomy-of-the-transverse-mesocolon-based-on-embryology-for-laparoscopic-complete-mesocolic-excision-of-right-sided-colon-cancer
#20
Takeru Matsuda, Yasuo Sumi, Kimihiro Yamashita, Hiroshi Hasegawa, Masashi Yamamoto, Yoshiko Matsuda, Shingo Kanaji, Taro Oshikiri, Tetsu Nakamura, Satoshi Suzuki, Yoshihiro Kakeji
BACKGROUND: To treat colon cancer via complete mesocolic excision (CME) with central vascular ligation (CVL), dissection along the embryologic fusion planes is required. However, this surgery is difficult, especially for right-sided colon cancer, because the anatomy and embryology of the transverse mesocolon are not familiar to gastrointestinal surgeons. METHODS: In this video article, the anatomic details of the transverse mesocolon based on embryology are illustrated with a focus on the venous anatomy...
September 5, 2017: Annals of Surgical Oncology
keyword
keyword
49363
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"