Updated per Current Evidence (2023–2024 Guidelines from CDC, WHO, ECDC, and Peer-Reviewed Literature) Etiology & Causative Agents Hand, foot, and mouth disease (HFMD) is a highly contagious, typically acute febrile…
Updated per current CDC, IDSA, and ECDC guidelines (2023–2024); evidence synthesized from peer-reviewed literature including New England Journal of Medicine, Clinical Infectious Diseases, Pediatrics, and The Lancet Infectious Diseases. Etiology…
Definition & Clinical Context “Cave syndrome” is not an officially recognized diagnostic entity in either the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR) or the…
Definition & Classification Evans syndrome (ES) is a rare, life-threatening autoimmune cytopenia defined by the concurrent or sequential occurrence of two or more immune-mediated blood cytopenias, most commonly: Immune thrombocytopenia…
Revised with emphasis on pathophysiology, modern classification, diagnostic algorithms, and evidence-based management—updated to 2024 guidelines and literature (including recent trials and consensus statements from the Inherited Neuropathies Consortium, AAN, and…
What is black fungus? Mucormycosis, often known as black fungus, is a very rare but hazardous fungus that infects people with weak immune systems. It causes black fungus disease. The…
Definition and Pathophysiology Skeeter syndrome (SS) is a rare, non-infectious, IgE-mediated Type I hypersensitivity reaction to proteins in mosquito saliva—specifically allergenic polypeptides such as Aedinae salivary gland antigen-2 (Aed a…
What is McCune Albright Syndrome? McCune Albright syndrome is a genetic disorder characterized by abnormal deposits of scar-like or fibrous tissue in bones and skin along with defects in endocrine…
Prepared per DSM-5-TR (2022), ICD-11 (2023), and current clinical practice guidelines from the American Academy of Child and Adolescent Psychiatry (AACAP), National Institute for Health and Care Excellence (NICE), and…
Definition & EpidemiologyTuberous sclerosis complex (TSC; OMIM #191100, #613254) is a rare autosomal dominant neurocutaneous phakomatosis characterized by the development of benign hamartomas in multiple organ systems. It affects ~1…
1. Definition and Epidemiology Brugada syndrome (BrS) is a rare, inherited primary electrical disorder characterized by a distinctive electrocardiographic (ECG) pattern—classically coved-type ST-segment elevation in right precordial leads (V1–V3)—and an…
Hello, I am Dr. Costa, and I have been practicing medicine for 12 years. Over the years, I have seen many students enter the medical profession and build meaningful, successful…
Skin texture—encompassing smoothness, firmness, uniformity, hydration status, and absence of roughness or irregularities—is a dynamic biomarker influenced by intrinsic aging, environmental exposures (e.g., UV radiation, air pollution), and modifiable lifestyle…
1. Definition and Terminology Cerebral cavernous malformation (CCM), also known as cavernoma, cavernous angioma, or cavernous vascular malformation, is a low-flow, capillary-level vascular anomaly of the central nervous system (CNS).…
For the practicing clinician—dermatologist or general practitioner—this article provides an updated, evidence-based overview of melanin regulation, the limitations and risks of topical skin-lightening agents, and effective strategies to manage dyschromia…
