Intratarsal Keratinous Cyst Clinically Misdiagnosed as a Chalazion.

The intratarsal keratinous cyst (IKC) is a recently described entity, often clinically misdiagnosed as a chalazion. We report a case of a 61-year-old male patient with a chief complaint of a small lesion on the upper eyelid that evolved over six months. On physical examination, an asymptomatic, firm nodule was identified on the left upper eyelid. The patient reported no history of trauma. A provisional diagnosis of chalazion was established, and an excisional biopsy was performed. Histopathologically, the lesion was lined with a stratified squamous epithelium, with a corrugated epithelial surface showing abrupt keratinization without keratohyalin granules, and compact keratinous-appearing material in the cystic lumen. The diagnosis was IKC. No signs of recurrence were observed after one year of follow-up. It is essential to accurately diagnose IKC and distinguish it from chalazion and epidermal inclusion cysts, because IKC requires complete surgical excision and can exhibit multiple recurrences if not properly removed.

A case series of mucormycosis after covid infection in two hospitals.

This paper aims to discuss clinical aspects of mucormycosis. This case series was conducted in two services, comprising six mucormycosis cases during COVID-19 pandemic. About gender, there are 4 (66.7%) males and 2 (33.3%) females with mean age (48.7 ± 9.4) years. All cases presented complaints of pain and swelling in oral cavity and had an aggressive clinical presentation. Five patients had diabetes and one had a nasal non-Hodgkin lymphoma. Histologically, large, branched, hyphae associated with necrotic areas were observed, confirming microscopically such as mucormycosis through PAS and GMS stains. In four cases, treatment consisted in surgical debridement associated with antifungal therapy. All patients were submitted to debridement and received antifungal treatment (amphotericin B). Five patients were followed up without clinical recurrence, but unfortunately one patient died. Diagnosis of mucormycosis should be early because it is related to high mortality. The treatment consists of surgical debridement associated with antifungal therapy.

Prognostic significance of architectural subtypes of Gleason grade 4 prostate cancer in radical prostatectomy: A semiquantitative method of evaluation.

Studies have shown that Gleason grade 4 extent as well as architectural subtypes provide prognostic information. We aimed to evaluate the influence on biochemical recurrence following radical prostatectomy of patients with organ-confined tumor, Gleason score 7, and negative surgical margins. Total tumor extent, Gleason grade 4 total extent and the extent of each architectural subtype (fused glands, poorly defined glands, cribriform glands, and glomeruloid glands) were evaluated by a semiquantitative point-count method using different colors to identify each subtype. Microscopic morphology of glomeruloid glands was considered regardless of morphology: size (small or large), attachment (narrow or extensive), and cribriform or solid intraluminal protrusion. Gleason grade 4 total extent significantly predicted shorter time to biochemical recurrence in univariate and multivariate analysis. Stratifying extent, Gleason grade 4 with >30% of the total grade 4 extent was significantly predictive for time of recurrence. Considering architectural subtypes, cribriform and glomeruloid glands but not fused and poorly formed glands extent, significantly predicted shorter time to recurrence in univariate analysis. An important issue related to the studies on prognostic significance of Gleason grade 4 subtypes is the lack of uniformity in the definition of microscopic morphology of the subtypes particularly of the glomeruloid architecture.

In silico and In vivo Toxicological Evaluation of Cissampelos Sympodialis Secondary Metabolites in Rattus Norvegicus.

Cissampelos sympodialis is a plant in northeastern Brazil used by the populace for treating respiratory diseases. Several studies have shown that ethanol leaf extracts have immunomodulatory and anti-inflammatory activities. Infusions are widely used, popular, and an ancient technique in traditional medicine, using hot water alone as the means of extraction. This study aimed to investigate acute toxicological potential of leaf infusions of Cissampelos sympodialis, when applied orally at a dose of 2000mg/kg to Rattus norvegicus, combined with an in silico study of 117 alkaloids present in the Cissampelos genus; five (5) of which were determined to have high toxicity (21, 8, 93, 32 and 88), and five (5) having both low toxicity (57, 77, 28, 25 and 67) and low liver metabolism. The in vivo toxicological evaluation showed that male water consumption decreased, and the feed intake decreased in both sexes. Yet, the figures as to change in weight gain of the animals were not statistically sufficient. As for the biochemical parameters, there was an increase in urea, and decreases in uric acid and AST in males. In females, there was a decrease in albumin and globulin which consequently leads to a total protein decrease. Despite biochemical changes suggestive of kidney damage, the histological sections revealed no kidney or liver changes. The results therefore indicate that despite presenting alkaloids which may be toxic, the genus Cissampelos, or leaf infusions of Cissampelos sympodialis, when applied orally at a dose of 2000mg/kg present low toxicity.