Results 71 to 80 of about 107,650 (315)

Black Anal Canal: Acute Necrosis [PDF]

Annals of Coloproctology, 2016
Acute ischemia of the rectum or anal canal resulting in necrosis is extremely uncommon because both the rectum and the anal canal have excellent blood supplies. We present a case with spontaneous necrosis of the anal canal without rectal involvement. Surgical debridement was accomplished, and the recovery was uneventful.
Barbeiro, Sandra, Martins, Catarina, Gonçalves, Cláudia, Alves, Paulo, Gil, Inês, Canhoto, Manuela, Silva, Filipe, Cotrim, Isabel, Amado, Cristina, Eliseu, Liliana, Vasconcelos, Helena   +10 more
openaire   +2 more sources

Cranial anatomy of a Late Cretaceous aspidorhynchid fish (Neopterygii: Aspidorhynchiformes) from Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Belonostomus longirostrisis was named for an isolated jaw fragment from freshwater Upper Cretaceous (Campanian) sediments of the Dinosaur Park Formation of Alberta, Canada. Following the description of the Albertan species, numerous isolated cranial and postcranial elements have been collected from the Dinosaur Park Formation and assigned to B.
Mondo Miyazato, Luke E. Nelson, Joshua A. Doyon, Donald B. Brinkman, Alison M. Murray   +4 more
wiley   +1 more source

OR-43 - DIVERSIDADE DO HPV NO CANAL ANAL E COLO DO ÚTERO DE MULHERES QUE VIVEM COM HIV

Brazilian Journal of Infectious Diseases
Introdução: A infecção pelo papilomavírus humano (HPV) está associada ao desenvolvimento de câncer nas regiões anogenital e de orofaringe. Pessoas que vivem com HIV apresentam maior risco de infecção por HPV, neoplasia intraepitelial e desenvolvimento de
Élida Mendes de Oliveira, José Antonio Cunha e Silva, Letícia Lintomen, Marcelo Alves Soares, Fabio Leal, Isabel Guimarães, Livia Ramos Goes, Juliana Domett Siqueira   +7 more
doaj   +1 more source

Anal canal squamous carcinoma

Journal of Coloproctology, 2017
Background: Anal canal carcinoma is a rare neoplasm, representing 2% of the digestive tumors, and the most common is squamous cell carcinoma, with an increasing incidence.
Maricruz Nunes Magalhães, Laura Elisabete Ribeiro Barbosa   +1 more
doaj   +1 more source

Basal internal anal sphincter tone, inhibitory neurotransmission, and other factors contributing to the maintenance of high pressures in the anal canal [PDF]

, 2011
Maintenance of the basal tone in the internal anal sphincter (IAS) is critical for rectoanal continence. Effective evacuation requires a fully functional rectoanal inhibitory reflex (RAIR)-mediated relaxation of the IAS via inhibitory neurotransmission (
Rattan, S., Singh, J.
core   +1 more source

Grooved Surface of the Obturator Internus Muscle With Two Distinct Adjacent Parts

Clinical Anatomy, EarlyView.
ABSTRACT The specific anatomical features of the obturator internus, particularly those of its medial surface, remain insufficiently characterized. This study investigated the morphology of the obturator internus muscle by focusing on the shape of its medial surface and potential age‐related changes.
Satoru Muro, Junichi Tsuchiya, Takuya Ibara, Akimoto Nimura, Keiichi Akita   +4 more
wiley   +1 more source

Endoanal MRI of the anal sphincter complex: correlation with cross-sectional anatomy and histology [PDF]

, 1996
The purpose of this study was to correlate the in vivo endoanal MRI findings of the anal sphincter with the cross-sectional anatomy and histology.
Entius, C.A., Hollander, J.C. (Jan) den, Hussain, S.M. (Shahid), Kuiper, J.-W. (Jan-Willem), Lameris, J.S., Stoker, J. (Jacob), Zwamborn, A.W.   +6 more
core  

A rare case of perineal neuralgia treated with ultrasound‐guided nerve block combined with water separation

Ibrain, Volume 11, Issue 1, Page 106-111, Spring 2025.
A middle‐aged man presented with a right indirect inguinal hernia in November 2020 and underwent laparoscopic high ligation of the right hernial sac. Intermittent acupuncture‐like pain in the skin of the right scrotum and medial thigh occurred 1 month after surgery and lasted for 6 months. Under ultrasound guidance, ilioinguinal nerve and genitofemoral
Yong Wang, Min Wang, Rui Jiang, Zhao‐Qiong Zhu, Guang‐Cai Li   +4 more
wiley   +1 more source

The Science, Techniques, and Art of Anal Fistula Treatment

Indian Journal of Colo-Rectal Surgery, 2019
Anal fistula is a diverse disease. There is no single treatment which is effective for all types of anal fistulas. The management of simple anal fistula is straightforward, and a fistulotomy is recommended. However, in complex anal fistula if fistulotomy
Arshad Ahmad
doaj   +1 more source

Optimized Anisotropic Rotational Invariant Diffusion Scheme on Cone-Beam CT [PDF]

, 2010
Cone-beam computed tomography (CBCT) is an important image modality for dental surgery planning, with high resolution images at a relative low radiation dose.
Kroon, Dirk-Jan, Maal, Thomas J.J., Slump, Cornelis H.   +2 more
core   +2 more sources