Primary Left Thigh Melanoma Presenting as an Obstructive Hemorrhagic Melanoma of the Small Bowel.

Primary malignant melanoma of the small intestine is rare and infrequent. However, the small bowel is a relatively common metastatic destination for cutaneous melanoma. Given the fact that primary small intestinal melanoma is a controversial and rare diagnosis, we present a case in which the initial finding suggested a primary tumor. However, the patient was later diagnosed with a small left thigh melanoma after the diagnosis of primary malignant melanoma of the small bowel was established. As a result, we emphasize that all primary small intestinal melanoma must be thoroughly investigated for an alternative primary lesion. Additionally, we question if the diagnosis of primary malignant melanoma of the small bowel needs to be re-classified as small bowel melanoma of unknown primary, especially in cases in which the primary lesion is unidentified.

The Importance of Excisional Biopsy in Nodular Lymphocyte-Predominant Hodgkin's Lymphoma.

Hodgkin's lymphoma (HL) is a malignancy that is typically B-cell in origin. HL can be further classified into classical HL and nodular lymphocyte-predominant HL (NLPHL). NLPHL is a rare lymphoma. It commonly presents locally with palpable firm lymphadenopathy or mediastinal mass seen on chest imaging. Some patients may have B symptoms (fever, night sweats, and unintentional weight loss), splenomegaly, and hepatomegaly. We describe a case of NLPHL in a 32-year-old male with classical findings of this rare class of HL.

Diffuse Neurofibroma in a Micronesian Male.

Neurofibromatosis type 1 (NF1) is an autosomal dominant genetic disorder, with variable clinical features, most commonly including café-au-lait macules and neurofibromas. The incidence of NF1 is approximately one in 3,000 individuals. Diffuse neurofibroma is the rarest subtype of neurofibromas. We present a case of a 39-year-old Micronesian male presenting with a substantially large and heavy overgrowth on his back, found to be consistent with diffuse neurofibroma on histopathologic examination. The patient also met the diagnostic criteria for NF1 based on clinical examination. Imaging showed the dermal and subcutaneous thickening without deep extension into the underlying fascial layer or muscles. A patient-centered, multidisciplinary approach was taken in the workup and management of this case. Our patient expressed disinterest in surgical interventions.

Vibrio fluvialis Bacteremia With Hemorrhagic Bullae: A Case Report.

V. fluvialis is a pathogenic Gram-negative bacillus typically resulting in gastroenteritis in humans. It has recently been identified as a growing concern for public health. The case presented is an uncommon case of V. fluvialis causing bacteremia, as well as hemorrhagic skin lesions. Other reported cases have also highlighted unexpected manifestations, such as cerebritis, bacterial peritonitis, and otitis externa. These atypical presentations can happen in immunocompromised individuals. There are no established guidelines currently for the treatment of V. fluvialis bacteremia. This case presents V. fluvialis bacteremia that improved with doxycycline without the need for incision and drainage of the patient's lower extremity lesions.

When Multiple Conditions Converge: An Unusual Case of Infectious Aortitis in a Patient With Prurigo Nodularis and an Abdominal Aortic Aneurysm Endograft.

Infectious aortitis is a rare disease process that presents with mortality varying from 60% to 90%, even with aggressive treatment. This is a case involving a 69-year-old male who initially presented for acute encephalopathy. The patient's past medical history included coronary disease status post coronary bypass graft, abdominal aortic aneurysm status post endograft repair, prurigo nodularis, Tangier's disease, type 2 diabetes mellitus, and stage 3b chronic kidney disease. Initially, the work-up was unrevealing for a cause of the patient's acute encephalopathy. However, astute clinical evaluation led to the diagnosis of methicillin-sensitive Staphylococcus aureus (MSSA) bacteremia and abdominal infectious aortitis. Prurigo nodularis is a chronic dermatologic condition characterized by the development of intensely pruritic, firm nodules or bumps on the skin associated with itching and scratching. Prurigo nodularis itself does not directly result in bacteremia. However, in rare cases, severe and persistent scratching due to prurigo nodularis can lead to breaks in the skin, creating an entry point for bacteria to spread by the hematogenous route. Certainly, it is highly unusual to have a combination of prurigo nodularis, MSSA bacteremia, and abdominal aortic aneurysm endograft infection. Given the severity of these conditions individually, the combination presents a unique and challenging clinical scenario that requires prompt and coordinated management by a multidisciplinary team. This case report aims to provide new insights into the potential risk factors, clinical course, and management strategies for these combined conditions.

Congenital Atrial Septal Defect Presenting With Tamponade Physiology and an Associated Viral Illness.

Cardiac tamponade is a serious clinical syndrome that often presents with the classic triad of hypotension, jugular vein distention and diminished or muffled heart sounds on auscultation (Beck's Triad). This phenomenon occurs due to fluid accumulation in the pericardial space which compresses the heart, reduces cardiac output and may cause cardiogenic shock. In this report, we present a case of a 22-year-old female with a congenital atrial septal defect (ASD) and right ventricular failure with tamponade physiology with an associated viral illness.

Post Paddle Boarding Atrial Fibrillation in an Aging Athlete.

Exercise-induced atrial fibrillation has been described in the literature and is a well-known phenomenon. It has been mostly described in long-distance runners. We present a case of a 69-year-old white male who had recurring atrial fibrillation with rapid ventricular response while paddle boarding, but not during other activities such as tennis and cycling. This case highlights the rationale behind different activities provoking atrial fibrillation and the need for multidisciplinary management of this entity including consulting with an electrophysiologist for possible early ablation.

A Case of Intractable Vomiting: Was It the Celiac Artery Compression?

Celiac artery compression syndrome is a rare and poorly understood condition. Compression of the celiac artery by the median arcuate ligament causes intractable nausea, vomiting, and postprandial pain. We present a case of a 55-year-old male with a 50-pound unintentional weight loss and intractable vomiting, whose symptoms persisted despite robotic median arcuate ligament release. He later returned to the emergency department where he was found to have a low gallbladder ejection fraction on imaging indicative of biliary dyskinesia, for which he underwent a cholecystectomy. Eventually, his symptoms improved, and he was able to return to his baseline body weight.

An Unusual Case of Hypoxia: A Case of Right-to-Left Interatrial Shunting in a Patient With a Patent Foramen Ovale and Normal Pulmonary Pressure.

A patent foramen ovale (PFO) is an embryological remnant. Hypoxia in the setting of a PFO is generally attributed to pulmonary hypertension resulting in an increase in right atrial pressure and mixing of venous blood from the right atrium with blood in the left atrium resulting in a right-to-left interatrial shunt (RLIAS), thus deoxygenating it. We present a case of a 64-year-old male with a past medical history of coronary artery disease (CAD) who presented with two weeks of dyspnea on exertion and intermittent chest pressure. He was found to be hypoxic at 87% (normal >95%) with largely normal workup except for left anterior descending (LAD) stenosis, which was stented, and a PFO that was found on transesophageal echocardiogram with normal pulmonary artery pressure (PAP). This case of hypoxia in the setting of a PFO without pulmonary hypertension puts into question the pathophysiology of hypoxia in a PFO and RLIAS.

A Case of Recurrent Embolic Strokes in a Young Female With a Patent Foramen Ovale and Presumed Fibroelastoma.

Patent foramen ovale (PFO) occurs in about 25% of the population. PFO closure has been shown to decrease the risk of stroke in patients with recurrent strokes as compared to those treated with medical therapy alone, with more benefit in those with larger PFO sizes. Percutaneous PFO closure, although minimally invasive, does carry surgical risks, which must also be taken into account. We present a case of a 31-year-old female presenting with a left middle cerebellar artery (MCA) stroke and persistent deficits who was found to have both a PFO and presumed fibroelastoma on her aortic valve. She was treated with aspirin and apixaban and advised to follow up with cardiothoracic surgery once she recovered from her stroke for ultimate PFO closure and removal of the fibroelastoma. Unfortunately, she presented again less than one month later with recurrent cerebrovascular accidents (CVA) requiring urgent PFO closure. Our case stresses the importance of tools such as the Risk of Paradoxical Embolism (RoPE) score index when determining treatment plans for patients with PFO, and possible confounding factors such as the presence of an aortic valve fibroelastoma.

Subacute Combined Degeneration of the Cervical Spine Secondary to Inhaled Nitrous-Oxide-Induced Cobalamin Deficiency.

Nitrous oxide is clinically used as an inhaled anesthetic in surgical and dental procedures. It is also used as an inhaled recreational drug and can be incredibly addictive. It tends to irreversibly oxidize cobalamin (Vitamin B12), rendering it inactive as a coenzyme in the production of methionine. Methionine is required in myelin sheath phospholipid production, and thus overuse of this anesthetic can affect myelin formation. Furthermore, other substrates that require this coenzyme (such as methylmalonate and propionate) accumulate and get incorporated in the myelin sheath, resulting in subacute combined degeneration of the spinal cord. We present a case of a young, avid hunter with a history of polysubstance use to include inhaled nitrous-oxide abuse, prior cocaine use, current marijuana use, and tobacco abuse, who presented with ascending paresthesias without appreciable motor dysfunction. Initial labs showed isolated macrocytosis without anemia in the setting of low vitamin B12 levels. Relevant studies showed elevated methylmalonic acid, normal anti-parietal cell, and anti-intrinsic factor antibodies. Heavy metals screens were negative for high levels of lead, iron, copper, or zinc. Cervical spine MRI demonstrated dorsal cord signal abnormalities without enhancement, in a pattern consistent with vitamin B12 deficiency. The patient was diagnosed with subacute combined degenerative disease secondary to depleted vitamin B12 as a result of recreational inhaled nitrous-oxide abuse. After cessation of nitrous oxide abuse, in addition to three months of B12 replacement, he reported complete resolution of symptoms.

Rare complication of a commonly used antihypertensive agent: A case of hydralazine-induced ANCA-associated vasculitis presenting as rapidly progressive glomerulonephritis.

Hydralazine-induced ANCA-associated vasculitis is a rare clinical entity, with complications including rapidly progressive glomerulonephritis, pulmonary hemorrhage, and pulmonary-renal syndrome. We present this case to highlight the clinical features that support this challenging diagnosis and to emphasize the importance of prompt recognition and aggressive intervention given its significant morbidity and mortality.

Voriconazole Induced Cutaneous Squamous Cell Carcinoma in an Immunocompetent Patient.

Voriconazole therapy can be associated with hair loss, vision changes, and skin phototoxicity, but rarely is it associated with the development of skin cancer. We present a case of an immunocompetent 42-year-old Caucasian male with a past medical history significant for chronic pulmonary aspergillosis (CPA) and prior cutaneous squamous cell carcinoma (cSCC) of the left hand who arrived at our clinic for evaluation of an enlarging, non-tender left preauricular mass over the past six months. He had diffuse actinic changes and appeared older relative to his age. He had a fair complexion but was compliant with sun protection measures and minimized unnecessary ultraviolet (UV) light exposure. His left-sided facial mass was excised, and the final pathology was consistent with cSCC. His only home medication was oral voriconazole 200 mg once daily for six years for pulmonary aspergillosis. He was negative for human immunodeficiency virus (HIV) and had no history of prior transplant operations. This case highlights the importance of recognizing voriconazole as an independent risk factor in the development of cSCC, especially in patients on chronic therapy for aspergillosis.

Newly acquired factor VIII deficiency in a male Ex-smoker - A case report.

INTRODUCTION: Acquired hemophilia A (AHA) also known as acquired factor VIII (FVIII) deficiency is an acquired inhibition of coagulation by antibodies that either inhibit the activity or increase the clearance of a clotting factor (FVIII). Mortality in patients presenting with AHA is related to bleeding and hemorrhage, therefore rapid diagnosis and effective treatment are needed. CASE PRESENTATION: We present a case of a 59-year-old male with acquired VIII deficiency presenting with diffuse ecchymosis and bleeding diathesis. The patient was treated successfully with steroids and rituximab. CLINICAL DISCUSSION: It is a rare autoimmune disorder caused by neutralization of Factor VIII by IgG antibodies. This can lead to severe, life threatening bleeding. Treatment involves replacement of FVIII and immunosuppression. CONCLUSION: A key point to successfully treating AHA is to remove inhibitors and stop bleeding. Mortality in patients presenting with AHA is related to the bleeding and hemorrhage, therefore rapid diagnosis and effective treatment are needed.

Round Atelectasis: A Peculiar Pseudotumor Seen on Echocardiogram.

Round atelectasis (RA) is a rare disorder most commonly occurring in the presence of chronic pleural effusions due to the formation of adhesions and resultant pulmonary collapse. The most common culprit to this disease is asbestosis, but other causes of pleural effusions such as congestive heart failure and pneumonia are reported in the literature. RA can occasionally mimic pulmonary cancers and should be identified to prevent the associated morbidity of tumor workup. We present a case of RA seen on echocardiogram, and then later on computed tomography mimicking a pleural tumor in a 58-year-old female with preexisting heart failure and recurrent pleural effusions. Consultation with radiology and recognition of RA prevented the unnecessary potential morbidity and mortality of further workup.

Severe Hypertension Leading to Hemorrhagic Stroke in Neurofibromatosis Type 1.

Neurofibromatosis type 1 (NF-1), also known as von Recklinghausen's disease, is an autosomal dominant multisystem genetic disorder affecting one in 2,600 individuals. It is caused by a mutation of the NF-1 gene located on chromosome 17q11.2. It is characterized by various cutaneous findings, including cafe-au-lait spots and axillary freckling. Hypertension is a commonly reported finding in adult patients with NF-1 but may also develop during childhood. In most cases, hypertension in NF-1 patients is primary in nature; however, secondary hypertension has been more frequently reported in NF-1 patients due to the association of NF-1 with an increased incidence of pheochromocytomas, bilateral renal artery stenosis, and coarctation of the abdominal aorta. This case reports the consequences of uncontrolled hypertension in a 23-year-old female with NF-1, illustrating the importance of screening for hypertension in children diagnosed with NF-1, and emphasizing the higher incidence of both primary and secondary causes of hypertension in the NF-1 patient population. In this case, no secondary causes of hypertension were found; therefore, a diagnosis of primary hypertension was made and the appropriate therapy was initiated to prevent further complications.

Aphasia as the Initial Presentation of Acute Otomastoiditis in an Elderly Male.

Acute otomastoiditis is a potentially life-threatening condition. It is relatively uncommon in elderly patients and is usually seen as a complication of acute otitis media. Limited studies are available on this uncommon disease in the elderly, and thus the clinical course of the disease is not fully understood. Proper use of antibiotics for acute otitis media has markedly decreased the incidence of acute otomastoiditis. We describe a case of a 76-year-old male with acute otomastoiditis complicated by cerebellopontine angle epidural abscess who presented with a chief complaint of sudden onset of global aphasia, which is an unusual presentation for acute otomastoiditis. The patient eventually required medical and surgical intervention. To the best of our knowledge, acute otomastoiditis presenting with sudden onset of global aphasia has not been previously described in the literature. This case illustrates how multidisciplinary team involvement is vital in the management of these uncommon cases.

A method for failures grouping and priority ranking case study: Operating gas compression plant.

The gas compression plant is a core and major unit in oil and gas industries that have high gas oil ratio or considerable gas production. Compressed gas is needed as fuel, support processing handling, increase reservoir builds up pressure by gas injection as well as a useful product. Gas plants are critical and dangerous working location and it is classified as a critical zone due to circumstance parameters like high pressure, high temperature, gas specifications and the potential to impact to human health, safety, environment and possibility to impact invested revenues in case of incidents. Therefore, all recorded compression plant operational failures shall be assessed and reviewed in order to decrease the unit down time and increase plant safety and efficiency. In general, limited studies were conducted in gas plant maintenance management. This paper studied a working gas compression unit in an operating oil and gas field in order to present the followings: • A model of failures raking and sorting in gas compression plants based on total down time importance (TDTI) grouping. • A model of failures ranking by using the risk priority number (RPN). RPN is giving priorities based on associated risk and TDTI as a new method is providing rankings based on maximum contribution to the total occurred down time. Therefore, the study is elaborating to demonstrate these two methods and highlighted the areas of difference which need attention of the owner and the site working team.

Stiff limb syndrome: a case report.

INTRODUCTION: Stiff limb syndrome is a clinical feature of the stiff person syndrome, which is a rare and disabling neurologic disorder characterized by muscle rigidity and episodic spasms that involve axial and limb musculature. It is an autoimmune disorder resulting in a malfunction of aminobutyric acid mediated inhibitory networks in the central nervous system. We describe a patient diagnosed by neurological symptoms of stiff limb syndrome with a good outcome after treatment, and a review of the related literature. CASE PRESENTATION: A 49-year-old male patient presented with a progressive stiffness and painful spasms of his both legs resulting in a difficulty of standing up and walking. The diagnosis of stiff limb syndrome was supported by the dramatically positive response to treatment using diazepam 25 mg/day and baclofen 30 mg/day. CONCLUSION: This clinical case highlights the importance of a therapeutic test to confirm the diagnosis of stiff limb syndrome especially when there is a high clinical suspicion with unremarkable electromyography.