- Comparative Study of Prenatal Development Between Myotis albescens (Chiroptera: Vespertilionidae) and Eumops patagonicus (Chiroptera: Molossidae): The Chorionic Vesicle and Extraembryonic Membranes Considerations. [Journal Article]
- ARAnat Rec (Hoboken) 2018; 301(9):1527-1543
- We presented a comparative study of two species of South American bats, Myotis albescens and Eumops patagonicus, about prenatal development. This study was carried out using 60 specimens, which were ...
We presented a comparative study of two species of South American bats, Myotis albescens and Eumops patagonicus, about prenatal development. This study was carried out using 60 specimens, which were measured and photographed, and the embryonic stage was assigned by the staging system for Carollia perspicillata. We observed that the chorionic vesicle showed similarities in the disposition of the extraembryonic membranes, but they differed in characteristics of their yolk sac; in E. patagonicus, it was more glandular than M. albescens. M. albescens presented a well-developed discoid placenta with a caudal antimesometrial position, but E. patagonicus presented a diffuse placenta, which persists until the end of gestation and a discoid placenta in the uterus-tubal junction. In the embryogenesis, early stages, middle stages, and late stages were defined. In the early stage, the embryonic morphology is similar in the two species. The middle stage is characterized by the muzzle and pinna formation, fore and hind limb regionalization, and the formation of the patagium primordium. In the late stage, the overall growth of the embryo occurs. Its fore and hind limbs, patagium, and the typical craniofacial features are configured. We conclude that in early stages of development, the embryonic morphology of M. albescens and E. patagonicus is similar, while in late stages differences are evident; mainly the craniofacial structures and uropatagium configuration characteristics that allow their classification at the family level. Moreover, differences in time of fusion of maxillary and mandibular process were registered. This could be related to the morphology of the muzzle of each species. Anat Rec, 301:1527-1543, 2018. © 2018 Wiley Periodicals, Inc.
- A rare variation of intrinsic and extrinsic hand muscles represented by a bi-ventered first lumbrical extending into the carpal tunnel combined with bilateral fifth superficial flexor digitorum tendon regression. [Journal Article]
- MMorphologie 2018 Sep 25
- A rare unilateral variation of the first left lumbrical muscle was discovered in a female Caucasian cadaver dissected during a first year anatomy course at the Paracelsus Medical University - Nurembe...
A rare unilateral variation of the first left lumbrical muscle was discovered in a female Caucasian cadaver dissected during a first year anatomy course at the Paracelsus Medical University - Nuremberg, Germany. The muscle possessed two venters with the first originating near the medial epicondyle of the humerus together with the intramuscular tendon of the superficial flexor digitorum tendon, and the second presenting as a regular first lumbrical muscle with radial palmar origin from first tendon of the deep flexor digitorum muscle. Both muscle bellies were connected by a 1.42mm thick tendon that passed beneath the median nerve and ran through the carpal tunnel. The second belly was enlarged and entered the distal part of the carpal tunnel. Interestingly, the donor revealed further rare variations such as a bilateral regression of the fifth superficial flexor tendons to an obviously non functional connective tissue strand, lack of both palmaris longus muscles, a discoid lateral meniscus in the left knee, and reduction of the plantaris muscle to a fascia-like structure on the right leg. Lumbrical muscle variations extending into the carpal tunnel, especially those associated with auxiliary tendons, have significant clinical relevance due to their association with carpal tunnel syndrome.
- Incidence and Treatment Trends of Symptomatic Discoid Lateral Menisci: An 18-Year Population-Based Study. [Journal Article]
- OJOrthop J Sports Med 2018; 6(9):2325967118797886
- CONCLUSIONS: With an overall annual incidence of 3.2 per 100,000 person-years, a symptomatic discoid meniscus is an uncommonly encountered orthopaedic abnormality. However, the incidence of symptomatic discoid lateral menisci is highest in adolescent male patients. Because of the high rate of meniscus tears in patients presenting with symptoms, the majority are treated surgically.
- Discoid lateral meniscus in children and adolescents: a histological study. [Journal Article]
- JEJ Exp Orthop 2018 Sep 24; 5(1):39
- CONCLUSIONS: Discoid lateral meniscus is different from a normal meniscus in terms of vascularity and disorganization of collagen fibers.
- A case of Leber's miliary aneurysms with diffuse peripheral retinal vascular sheathing. [Case Reports]
- IJIndian J Ophthalmol 2018; 66(10):1496-1498
- A 30-year-old female presented with macular edema and discoid exudation at the posterior pole. Diffuse vascular sheathing was observed at the peripheral retina. Fluorescein angiography revealed multi...
A 30-year-old female presented with macular edema and discoid exudation at the posterior pole. Diffuse vascular sheathing was observed at the peripheral retina. Fluorescein angiography revealed multiple microaneurysms at the posterior pole and leakage from the peripheral vessels. Two monthly intravitreal bevacizumab led to minimal improvement, and resolution of macular edema was achieved by an additional intravitreal triamcinolone. The findings at the posterior pole resembled those of Leber's miliary aneurysm. However, this case also demonstrated a peculiar vascular sheathing at the periphery and showed response to triamcinolone, which are evidences for an inflammatory condition.
- Normal meniscal dimensions at different patient ages-MRI evaluation. [Journal Article]
- SRSkeletal Radiol 2018 Sep 22
- CONCLUSIONS: Menisci increase in all dimensions in correlation with age; except in the coronal meniscal width, which is a useful dimension to diagnose discoid meniscus on MRI, based on this, it would seem that the currently published size criteria, based on adults, could be applicable to children. The tibia has a faster rate dimension increase in correlation with age in comparison to the menisci.
- Canine Cutaneous Lupus Erythematosus: Newly Discovered Variants. [Review]
- VCVet Clin North Am Small Anim Pract 2018 Sep 15
- As the spectrum of canine cutaneous lupus erythematosus (CLE) variants has expanded markedly in the recent 2 decades, veterinarians are encouraged to become familiar with the characteristic clinical ...
As the spectrum of canine cutaneous lupus erythematosus (CLE) variants has expanded markedly in the recent 2 decades, veterinarians are encouraged to become familiar with the characteristic clinical features of CLE variants to permit early diagnosis and appropriate treatment. This article describes the signalment, clinical signs, treatment outcome, and laboratory and histopathology findings of 2 new canine CLE variants, generalized discoid lupus erythematosus and mucocutaneous lupus erythematosus.
- Annular Lesions: Diagnosis and Treatment. [Journal Article]
- AFAm Fam Physician 2018 Sep 01; 98(5):283-291
- Annular lesions can present in a variety of diseases. Knowledge of the physical appearance and history of presentation of these skin findings can help in the diagnosis. A pruritic, annular, erythemat...
Annular lesions can present in a variety of diseases. Knowledge of the physical appearance and history of presentation of these skin findings can help in the diagnosis. A pruritic, annular, erythematous patch that grows centrifugally should prompt evaluation for tinea corporis. Tinea corporis may be diagnosed through potassium hydroxide examination of scrapings. Recognizing erythema migrans is important in making the diagnosis of Lyme disease so that antibiotics can be initiated promptly. Plaque psoriasis generally presents with sharply demarcated, erythematous silver plaques. Erythema multiforme, which is due to a hypersensitivity reaction, presents with annular, raised lesions with central clearing. Lichen planus characteristically appears as planar, purple, polygonal, pruritic papules and plaques. Nummular eczema presents as a rash composed of coin-shaped papulovesicular erythematous lesions. Treatment is aimed at reducing skin dryness. Pityriasis rosea presents with multiple erythematous lesions with raised, scaly borders, and is generally self-limited. Urticaria results from the release of histamines and appears as well-circumscribed, erythematous lesions with raised borders and blanched centers. Annular lesions occur less commonly in persons with fixed drug eruptions, leprosy, immunoglobulin A vasculitis, secondary syphilis, sarcoidosis, subacute cutaneous lupus erythematosus, and granuloma annulare.
- Usefulness of Pulsed Dye Laser in Cutaneous Lupus Erythematosus. [Journal Article]
- ADActas Dermosifiliogr 2018 Sep 10
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- Autoimmune skin disease among dermatology outpatients in Botswana: a retrospective review. [Journal Article]
- IJInt J Dermatol 2018 Aug 31
- CONCLUSIONS: The incidence of autoimmune skin diseases in Botswana is lower compared to other published studies in other geographic areas, which may be reflective of a younger population, barriers to access, genetic differences, and a lack of comparative studies in sub-Saharan Africa. The hygiene hypothesis and helminth infections may also contribute to these differences. Further studies are needed to understand these disorders in this region.