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: Ammonia is corrosive and exposure will result in a chemical-type burn. It is highly hygroscopic and readily transforms the moist areas of the body such as eyes, nose, throat, and moist skin areas. It is a highly toxic irritant gas, and its toxicity usually occurs from occupational exposure, most are unintentional toxicity. It causes tissue damage via exothermic reaction with body tissues causing liquefactive necrosis. Release of ammonia has potentially for harmful effects on workers and the public. Although there have been incidents of exposure to harmful concentrations of ammonia in the world there have been few fatal accidents.Presentation depends on the level and duration of exposure. Management is supportive and its antidote is not available yet

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The primary donor sites for collecting bone in the oral cavity to replace missing ridges are the mandibular symphysis or ramus. Although successful, these bone transplants can nevertheless raise a number of issues, including donor site morbidity, nerve paresthesia, the devitalization of native teeth, and postoperative sequelae . Allogeneic block grafts were developed to address these concerns and a lack of autogenous intraoral bone available for grafting

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Pyoderma gangrenosum is a rare ulcerating skin disease often presenting as an extra intestinal manifestation of IBD and is difficult to manage. Treatment options for pyoderma gangrenosum include steroids, calcineurin inhibitors and anti TNF agents. Here in, we report a case of recurrent Pyoderma gangrenosum with Ulcerative Colitis that was successfully managed with Tofacintib, a JAK inhibitor

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Leukocytoclastic Vasculitis (LCV) characterizes various small vessel vasculitis types primarily affecting the skin, with occasional internal organ involvement. This inflammation involves immune-complex deposition within dermal capillaries and venues. Although idiopathic in origin, potential triggers, including antibiotic-related factors, must be considered. LCV presents across a spectrum of severity, sometimes extending to ulcers. Diagnosis involves clinical assessment, history, lab tests, and crucially, skin biopsy.

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ALS is a fatal neurodegenerative condition characterized by degeneration of upper and lower motor neuron in cerebral cortex, cranial nerve nuclei and anterior horn cells of spinal cord. Three drugs are FDA approved, Riluzole, Edaravone and AMX0035 (recently approved), which can only prolong survival time by 2-3 months.

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Superficial CD34-positive fibroblastic tumor is an infrequent soft-tissue tumor characterized by a lesion located in the subcutaneous fascia without affecting the soft or deep muscle planes. Its incidence is unknown; therefore, it represents a diagnostic challenge for both the surgical oncologist and pathologist. Given its high risk of local recurrence, extensive surgical resection is the recommended treatment modality. This is the first report of this rare entity in Latin-America.

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Cardiac myxoma are the most common primary heart tumor. It accounts for 40-50% of primary cardiac tumor. Approximately 75% occurs in left atrium and 15-20% in right atrium. Myxoma are usually polypoid, pedunculated lesion with smooth surface covered with thrombus. Most common site of attachment is at the border of fossa ovalis in left atrium but it can occur in any part of atrial wall. Symptoms are produced because of mechanical obstruction with cardiac blood flow, tumor embolization and constitutional symptoms due to increased expressions of IL-6. Echocardiography is the best diagnostic modality to localise the tumor. Surgical excision is the mainstay of treatment of myxoma present in any location.

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Myocardial infarction with nonobstructive coronary arteries (MINOCA) is a puzzling clinical entity, coupled with potential multiple pathophysiological mechanisms, often makes disease classification, investigation and management difficult. Despite presence of myocardial damage and increased risk for the future, many patients are discharged undiagnosed, thus the specific cause is not effectively treated.

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Intracranial hemorrhage (ICH) is a life-threatening complication in hemophilia. It often occurs during childhood after minimal head trauma. It poses a problem of diagnostic and therapeutic management, especially in Africa where CFCs are not always available.

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Necrotizing Sialometaplasia (NSM) is a rare, benign, self-limiting, inflammatory disease of mostly minor salivary gland origin. NSM can resemble a malignant lesion in its early disease course, both clinically and pathologically. Bilateral involvement of the hard and soft palate by the lesion is a rare occurrence. NSM was first described as a reactive inflammatory process. Since then, over 200 cases have been reported and has been added to the WHO classification of salivary gland tumours under the tumour-like lesions. Here, we report a case of a 30-year-old male with bilateral NSM of both the hard and soft palate, on a background history of prurigo nodularis. The patient was initially referred to an Oral and Maxillofacial Department by his general practitioner for a palatal ulcer, concerning for oral malignancy. The ulcer was painless with a well-demarcated border and necrotic base. Subsequent biopsy and histological examination confirmed necrotizing sialometaplasia with healing occurring within 5 weeks.

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Paget’s bone disease (PBD) is a benign tumor of osteoclasts. We report a case of an isolated temporal bone’s Paget disease with unusual evolution to a rapidly functional degradation of vestibulocochlear system. A 60 years old female was admitted for an isolated, left sided mastoid tumefaction without any inflammatory signs. Initial temporal bone computed tomography (CT) showed a left cotton wool appearance without any ossicles lesion or vestibulocochlear extension. Anatomo pathological tests confirmed the diagnosis. The outcome was marked by the occurrence of vestibulocochlear symptoms. Treatment had consisted on subtotal surgery in combination with oral bisphosphonate with improvement of her clinical conditions. The post operative’s follow-up was simple without any abnormalities. PBD of temporal bone is a benign disorder. Imaging is considered the most useful diagnosis modality for revealing the disorder that will be confirmed by histological tests. The treatment is based on medical approaches and surgery has few indications.

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Enteric fever is a common infection of tropical countries that can have a variety of neurological complications. Reported neurological complications are encephalopathy, eningism, spastic paralysis-cerebral origin, convulsions, meningitis, parkinsonian syndrome, sensory motor neuropathy, cerebellar involvement, and schizophrenic psychosis. The patient, who was diagnosed with enteric fever and started treatment, developed headache and blurred vision 5 days after the treatment. Cerebral venous sinus thrombosis secondary to enteric fever and related pseudotumor cerebri were detected in the patient. When additional symptoms develop despite treatment in patients with enteric fever, complications such as thrombosis and pseudotumor cerebri should be considered.

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We present rare case of medial meniscus dislocation, in a 25 years old female patient who was admitted in emergency department. With painful locked left knee. Arthroscopy was done next day showing isolated dislocation of medial meniscus with the absence of any medial meniscus tear. Only reduction of the medial meniscus was done. Postoprative MRI confirmed the diagnosis and showed no tears in the medial meniscus. Physiotherapy and clinical follow up were done with good results and no recurrence for 4 months postoperative.

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Gangliocytic paraganglioma (GP) (nonchromaffin paraganglioma, paraganglioma) is a morphologically distinct tumor most commonly occurring in the second part of the duodenum in the proximity of ampulla of Vater. We herein, present a case report of appendiceal mass in a 16-year-old male who presented with recurrent right iliac fossa pain and steno sing cecal tumor on CT abdomen. He underwent right hemicolectomy and histopathological examination of appendix showed infiltration of appendiceal wall with gangliocytic paraganglioma. To our knowledge this is the first reported case of gangliocytic paraganglioma of appendix in our area.

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