Nail Cancer: Review of the Two Main Types of an Underestimated Disease.

Neoplastic lesions (benign or malignant) in the nail region are rare when compared to lesions in the rest of the skin. Despite advances in diagnostic modalities, their diagnosis is frequently delayed or overlooked for days, months, or even years when they are misrecognized or when their approach is not appropriate. Undoubtedly, malignant tumors are the most important lesions since an inopportune diagnosis or treatment can drastically change the patient's prognosis.

Main Bronchus Stenosis Due to Tuberculosis and Ogilvie's Syndrome: A Case Report of Two Unusual Diseases in the Same Patient.

Main bronchus stenosis as a sequel of pulmonary tuberculosis is infrequent and should raise suspicion of other presentations of the infection. Given its non-specific symptomatology and the absence of a specific diagnostic method, tracheobronchial tuberculosis is usually not suspected and diagnosed despite its great impact on quality of life due to the high incidence of stenosis as a consequence. Ogilvie's syndrome, an uncommon condition, requires careful management and surveillance given the risk of ischemia and colonic perforation intrinsic to the disease.

Giant Condyloma Acuminata (Buschke-Lowenstein Tumor): Review of an Unusual Disease and Difficult to Manage.

Giant condyloma acuminatum (GCA) or Buschke-Loewenstein tumor is a rare disease, with an estimated prevalence of 0.1%. It was initially described in 1896 by Buschke and later in 1925 by Buschke and Loewenstein.

Squamous Cell Carcinoma of the Nail, an Underdiagnosed and Underestimated Entity: A Series of Two Cases.

The nail apparatus is a complex area with great functional and cosmetic importance. The appearance of tumors is rare, frequently misdiagnosed with delaying the diagnosis. A series of cases is presented, where squamous cell carcinoma of nail apparatus underwent resection and reconstructive surgery in a relatively short time from their diagnosis, with a good oncological, functional, and cosmetic result.

Superior Vena Cava Syndrome Due to Thymic Carcinoma.

The superior vena cava syndrome (SVCS) is caused by a mechanical obstruction; 90% are of neoplasic etiology (lung cancer (LC) and non-Hodgkin lymphoma (NHL) mostly), epithelial neoplasms of the thymus (NET) is a rare cause, thymic carcinoma (TC) causing less than 1% of cases. A 56-year-old male presented with a four-month history of dyspnea, dysphonia, facial and cervical edema and bilateral cervical lymphadenopathy. The tomography showed bilateral, mediastinal, retroperitoneal lymphadenopathies, and obstruction of the internal jugular vein, right apical pulmonary nodules.