The cover image is based on the Case Report Extra-CNS metastasis of Glioblastoma Multiforme to cervical lymph nodes and parotid gland: A case report by Zuhair Shihabi et al., https://doi.org/10.1002/ccr3.2985.

The cover image is based on the Case Report Transparent dentin region in the tooth root by Toshiko Inoue et al., https://doi.org/10.1002/ccr3.2937.

HIV-associated lupus-like glomerulonephritis is an uncommon but well-described entity. Treatment has traditionally focused on control of HIV viremia with some using adjuvant steroids. Mycophenolic acid may prove to be a novel, nonsteroid, therapy in patients with active glomerulonephritis despite control of the underlying infection.

Endonasal balloon-assisted dacryoplasty is a minimally invasive technique that uses a high-pressure balloon catheter introduced into the lacrimal pathway through the nasal fossa into the neorhinostomy to treat recurrent epiphora after primary dacryocystorhinostomy. This procedure can be considered to be a reliable technique in patients unfit for general anesthesia.

Papillary fibroelastomas have a range of clinical presentations. The surgical removal of these tumors should always be considered as best alternative to a conservative approach.

Pfeiffer syndrome is a rare genetic disorder with heterogenous phenotype and prognosis. Due to its diverse clinical presentation, it can easily be misdiagnosed. Where genetic testing still remains a challenge, antenatal sonogram can aid in early diagnosis. The cranio-orbitofaciostenosis demands aggressive management to permit survival instead of uniform early demise.

Collision tumors are two distinct neoplasms seen together in same anatomic site. Management of such rare entity still lacks standardization with unknown prognosis. Here we are presenting one such rare case of invasive ductal carcinoma of breast and squamous cell carcinoma of anterior chest wall in a 31-year-old lady.

Although the coexistence of alopecia areata and lichen planopilaris is rare, if alopecic patches appear abruptly, this possible association should be kept in mind.

Recognition of unusual manifestations such as disseminated HSV or HSV-related hemophagocytic lymphohistiocytosis among individuals with impaired cellular immunity and prompt treatment initiation are essential for a favorable outcome.

Patients undergoing head and neck free flap reconstruction should be evaluated for radiation-induced venous stenosis and presence of central venous port as a potential risk for flap failure.

Topically applied betamethasone for actinic keratosis may trigger systemic side effects. Systemic side effects of topical betamethasone may completely resolve after discontinuation of the causative agent

Olfactory neuropathy spectrum disorder is characterized by hyposmia or anosmia and hypoplastic or absent olfactory bulbs. There may be an association between olfactory neuropathy spectrum disorder and Wolff-Parkinson-White syndrome.

In patients with PLSVC, the use of an active fixation lead (like the Medtronic “Attain Stability”) on the coronary sinus can lead to a successful and safe cardiac resynchronization, facilitating its positioning with a low long-term displacement rate.

Recombinant interferon beta-1b is one of the treatment options of multiple sclerosis (MS). Insertional biologics that are used in the treatment of MS may lead to skin adverse effects, for example, morphea.

Thigh pain after hip arthroplasty is multifactorial; uncovering its etiology is paramount for optimal treatment. This is the first case where ¹⁸F-sodium fluoride positron emission tomography substantially helped in diagnosing the post-hip arthroplasty persistent thigh pain and appropriate treatment selection. This imaging modality warrants further study and more widespread application.

Hepatocellular carcinoma (HCC) arising from hepatic adenoma is an infrequent situation. Only a few cases were reported in the literature. We present a rare case of hepatocellular carcinoma arising from HA in a young woman with no medication history of oral contraceptives. Surgical resection is the only available treatment.

Current evidence suggests that the choice between valve-in-valve transcatheter aortic valve implantation and reoperative aortic valve replacement should be based on multiple factors.

Hypocupremia due to zinc products can cause sideroblastic anemia and neutropenia and mimics other serious hematological disorders. Early consideration of the copper deficiency and a thorough clinical history can prevent unnecessary interventions.

The metastasis of brain tumors outside the central nervous system is extremely rare yet plausible and should be ruled out even after the complete regimen of treatment is given (surgery, radiation, and temozolomide) as it doesn't necessarily respond successfully leading to a poor prognosis.

The T-cell engager monoclonal antibody, blinatumomab, is a potential therapeutic strategy for refractory B acute lymphoblastic leukemia after failure of CD 19 chimeric antigen receptor T-cell therapy.

This is a unique presentation of common injury in a young professional athlete. The sensitivity of typical acute clinical signs in athletes is not known. Adequate splinting and early graded mobilization are key for successful rehabilitation, which was shorter than reported in the literature.

Emphysematous cystitis is a rare potentially life-threatening condition and a distinct type of complicated lower urinary tract infection generally associated with diabetes mellitus and diagnosed radiologically. This case report presents a case of emphysematous cystitis as post hiatal hernia repair infectious complication incidentally found on CT abdomen/pelvis.

In this paper, we discuss a unique manifestation of malignant pheochromocytoma, which presented with ocular pain. The histopathological study pointed to a possible pheochromocytoma origin. Subsequently, the patient underwent thorough imaging and paraclinical evaluations, which confirmed the diagnosis of pheochromocytoma.

Intracardiac thrombosis and distant thromboembolic events are rare complications of patients diagnosed with any type of cardiomyopathies. The low prevalence of this entity makes it challenging and unfortunate for the patients and their families. This review aims to add to the current limited available data describing similar clinical entities.

Unilateral pulmonary vein atresia (UPVA) is a rare congenital vascular malformation with obliteration of the pulmonary vein. We present a case series of three siblings with variable presentation of UPVA. We suggest a dominant genetic cause based on different paternity. Identifying genetic etiology would contribute to early diagnosis and screening.

We report three rheumatoid arthritis (RA) patients with false-positive procalcitonin (PCT) based on semiquantitative immunochromatography assays without infection, but who had negative PCT assay results based on quantitative methods. Immunochromatography was useful for screening; however, other heterophilic antibodies rather than rheumatoid factor were possible to affect, especially in RA flare.

A high clinical sense of the surgeon is mandatory in unstable deteriorating patients. Usually, a definitive diagnosis through an urgent laparotomy for repair of transmesenteric hernia and resection of gangrenous bowel leads to a successful outcome.

Cardiac magnetic resonance in cardiac mass: Cardiac magnetic resonance (CMR) should be considered in the evaluation of patients with cardiac mass. Especially, when the diagnosis is not certain, CMR could provide paramount information that could be helpful for the decision on cardiac surgery.

The lack of awareness of patient risk factors, failure to obtain adequate family history, was discussed by clinical experience in prenatal testing of hypophosphatasia with a novel variant in the ALPL gene identified in the index case of the family.

We demonstrate evidence supporting the efficacy of hydroxocobalamin in reducing vasopressor requirements for LVAD patients with refractory vasoplegia. Further study is needed to substantiate these findings and determine its optimal use in practice.

Microscopy can detect the presence of amoebic trophozoites in cerebrospinal fluid and tissue. The infection was confirmed in the present case by polymerase chain reaction and immunohistochemistry, but we were unable to achieve a cure. Our case rapidly progressed without any skin lesions.

Gender dysphoria can present as a positive symptom of schizophrenia. Completion of gender affirmation surgeries should not occur as a result of male genital self-mutilation via a deferral of emergent surgical reconstruction. Instead, gender affirmation should be considered after a full workup and assessment for resolution of any acute psychosis.

We report a case of IgA vasculitis that developed during the treatment of tuberculosis. Patients with tuberculosis who are on antituberculosis treatment can be administered steroids for severe disease or complications.

We report a case of hemodynamic instability due to bradycardia on the basis of severe hyperkalemia. Diabetic ketoacidosis and acute kidney injury together with polypharmacy triggered the acute onset. Potentially life-threatening hyperkalemia is often induced by drug interactions. ECG features may be crucial for diagnosis, and treatment depends on setting and resources.

Antigenic competition in the skin is a phenomenon in which the current dermatitis is distributed away from the area of previously existing dermatitis. Bullous pemphigoid may present such phenomenon, even if the responsible antigen was the same.

Intraventricular melanoma is a very rare and highly malignant disease. Safe resection is the mainstay of treatment, but no standard guidelines exist for adjuvant therapy. Early histologic and molecular diagnosis is key for improved survival.

Dual and H-type tracheoesophageal fistulae can present major diagnostic and management difficulties. A methodological approach with flexible bronchoscopy and a guide wire cannulation technique was used to diagnose, localize, and aid operative surgical management in five children with dual and H-type tracheoesophageal fistulae. All children had successful outcomes.

It is important to consider hydatidosis as a differential diagnosis in all suspected cysts in endemic regions. The wide range of hydatidosis presentations makes it difficult to differentiate from similar symptoms.

Lenalidomide is efficient in reducing red blood cell transfusion dependency and markedly lowering platelet counts in MDS/MPN-RS-T in the context of major platelet counts.

The management of adults with complex congenital heart disease requires a multidisciplinary team (Heart Team).

Most of the coronary vasospasms were found intraprocedurally, and it is very rare to see late-onset vasospasms that happened a few hours after uncomplicated ablations. The recognition of this rare but potentially life-threatening complication is important to improve the conventional practice of catheter ablation for patients with drug-refractory atrial fibrillation.

This is the first report of a case of COVID-19 after allogeneic stem cell transplantation. Our case suggests that COVID-19 may exist without characteristic CT images, especially in immunocompromised hosts, such as patients after transplantation.

Dermoscopy is a useful tool that helps distinguish lupus miliaris disseminatus faciei (LPDF) from sarcoidosis and tuberculosis. Follicular keratotic plugs (FKP) represent the hallmark of LPDF. Dermoscopic aspect of LPDF changes through the course of the disease.

Ibrutinib is approved for chronic lymphocytic leukemia (CLL). However, its role in the treatment of multiple myeloma (MM) is not clear and is under investigation. We report a case of CLL that developed MM while on therapy with ibrutinib indicating that this drug may not be active against MM.

This case of congenital tuberculosis (TB) emphasizes that TB should be suspected in newborns whose parents are from areas with high incidence of TB or who present with symptoms of an infection unresponsive to wide-spectrum antibiotics.

The early onset of gait akinesia should not rule out the diagnosis of hereditary chorea. It would be helpful to proceed to a whole-genome and long-read sequencing in order to track a new pathogenic variant including noncoding repeat expansion.

Most cases of swallowing-induced atrial tachycardia require radiofrequency catheter ablation for a permanent cure; however, the arrhythmia subsided after temporary prescription of verapamil in a patient with genotyped hypertrophic cardiomyopathy.

Anesthesia for patient with large anterior mediastinal mass might induce life-threatening complication. Maintaining the spontaneous breathing throughout the procedure and finding rescue position are the cornerstones of anesthetic management.

Most cases of fat embolism syndrome occur in young patients and are trauma related. A few cases have been described in HbSC disease. Clinicians must have a high index of suspicion in patients with sickle cell disease who develop acute encephalopathy. Urgent/Emergent hematology consultation, RBC exchange, and acute rehabilitation improve outcomes.

Hypersensitivity to etoposide phosphate has rarely been documented. We report a case of severe hypersensitivity reaction to etoposide phosphate in an old man. The patient experienced anaphylactic shock and has been hospitalized in intensive care unit. Vigilance is required regarding potential severe reactions with etoposide phosphate formulation.

Hypogonadism as a cause of depression, daytime sleepiness, and flushing is often missed in young males. Our case report highlights the importance of screening for hypogonadotropic hypogonadism and its treatment in symptomatic men with severe obesity, especially if they have depression, excessive sleepiness, and narcolepsy.

Odontogenic chronic maxillary rhinosinusitis has to be suspected in patient with a history of dental implant placement just after bone maxillary graft.

Transparent dentin in the tooth root forms during the aging process. The transparent dentin is weaker than normal opaque dentin, which may explain the occurrence of root dentin fractures in aged individuals. Tooth fractures are caused by the brittleness of the transparent dentin. Clinical procedures in aged persons require modification to accommodate the reduced strength of the dentin tissue.

We present a unique image from a case of anisakiasis that was detected incidentally in an elderly man during surveillance esophagogastroduodenoscopy. Given the popularity of sushi and sashimi throughout the world, we believe that our observations will raise awareness about the risk of Anisakis contamination in seafood.

Spontaneous portosystemic shunting is a compensation mechanism that is supposed to relieve the portal circulation from high pressures. Here we report an unusual shunt that originates from a patent paraumbilical vein and reaches the femoral vein via the inferior epigastric vein. Despite being merely anecdotal, this finding is fascinating from an anatomical point of view.

Medical thoracoscopy is an excellent tool for evaluation of exudative pleural effusion, and sago-like appearance of parietal pleura is highly specific for tuberculosis.

Spontaneous fistulization of the pancreatic necrosis into the colon is rare. It should be kept as differentials in the presence of massive air in the WOPN. Sometimes, simple bedside X-ray abdomen may clinch the diagnosis in the presence of large radiolucent air-fluid level with a peripheral displaced bowel loops.

This study reveals the importance of recognizing uncommon histologic variants in diffuse large B-cell lymphoma, such as the signet-ring cell variant, which may result in an erroneous or delayed diagnosis with potential impact in patient treatment.

Cortical laminar necrosis comprises ischemic neuronal changes and glial reaction. Despite fewer reports in the pediatric population, we encountered a case of cortical laminar necrosis with influenza virus A infection in an infant.

As the presence of second inferior vena cava may alter the extent of para-aortic lymphadenectomy, early preoperative imaging diagnosis is of great significance to avoid intraoperative difficulties.

While CT scans without IV contrast are obtained commonly to evaluate vertebral injuries, CT angiography scans should be considered whenever a fracture site approaches known vasculature.

Air embolism should be treated promptly with high fraction of supplemental oxygen and repositioning to help facilitate reabsorption of the air bubble. Hyperbaric oxygen therapy should be given to those with severe disease.

Clinicians should recognize extrahepatic portosystemic shunt as a cause of refractory or intermittent hepatic encephalopathy. Treatment strategies should be individualized according to patients' anatomic and hemodynamic status.

Arachnoid cysts vary in their size and location. Large cysts may cause symptoms requiring surgery. It is important to assess whether patients with arachnoid cysts and neurologic symptoms can benefit from such surgical interventions.

Anal lesions can occur due to infectious and neoplastic etiology, and a prompt and multidisciplinary approach may prevent poor outcomes.

The MRI showed encephalopathy and brain atrophy of the left parietal lobe, occipital lobe and temporal lobe and decreased infiltration of the dura mater on T2-weighted imaging. But encephalopathy and brain atrophy could be improved with neurotrophic drugs and additional intelligence teaching.

Functional fat injection under local anesthesia could be useful in the treatment of chronic dysphagia in selected patients with tissue loss secondary to laryngeal surgery.