This report presents a case of nodular colloid degeneration in a 76-year-old man with a solitary facial lesion. The skin lesion was a yellowish indurated plaque on the left mandibular area. Histopathologic examination revealed the amorphous colloid material in the upper dermis. The Congo red stain was negative, no birefringence was observed under polarized light, and elastic stain showed positivity in both the colloid and the surrounding fibers. To the best of our knowledge, nodular colloid degeneration is a rare entity and has only been reported in published literature a few times in the last 8 decades.
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http://dx.doi.org/10.1097/DAD.0b013e3181e3d294 | DOI Listing |
Front Endocrinol (Lausanne)
December 2024
Department of Pediatrics, Endocrinology, Diabetology with Cardiology Divisions, Medical University of Bialystok, Bialystok, Poland.
Introduction: Shear wave elastography (SWE) is an ultrasound diagnostic method used to measure tissue stiffness. Since the mechanical properties of tissue involved in the pathological process change, SWE might indicate regions of the examined tissue covered by the disease. It is well documented that SWE helps to differentiate benign and malignant nodules in thyroid glands in adults, however, there are few studies on the application of SWE in thyroid diagnosis in children.
View Article and Find Full Text PDFJ Cutan Pathol
November 2024
Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.
Background: Colloid bodies (CB), also known as Civatte bodies, are commonly seen in inflammatory dermatoses and are thought to represent cell degeneration. No studies have investigated the incidence and clinical associations of CB in cutaneous basal cell carcinoma (BCC). The aim of this study is to assess the incidence of CB in BCC lesions and analyze their clinical associations.
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October 2024
CaTaLiNA: Cancer de tiroides en Latinoamerica, Quito, Ecuador.
: Amyloid goiter (AG) is a rare cause of thyroid swelling, characterized by deposits of amyloid protein in the thyroid tissue. It can be associated with primary or secondary amyloidosis. Its prevalence in multinodular goiter cases is 0.
View Article and Find Full Text PDFJ Fish Dis
December 2024
School of Medicine and Biomedical Sciences (ICBAS), University of Porto, Porto, Portugal.
Thyroid tissue in teleosts is located mainly in the pharyngeal region, usually reaching other adjacent anatomical locations. Herein, a nodular lesion located in the left operculum of a Senegal seabream (Diplodus bellottii) was surgically excised and sent for microscopical evaluation. Microscopically, the lesion presented irregular borders and consisted in columnar epithelial cells arranged in a tubulopapillary pattern, surrounding a central lumen filled with acellular, acidophilic and homogeneous, material ('colloid').
View Article and Find Full Text PDFCureus
August 2024
Pathology, Ashwini Sahakari Rugnalaya Ani Sanshodhan Kendra, Solapur, IND.
Dyshormonogenetic goiter (DG) is a rare cause of congenital hypothyroidism (CH) occurring due to the lack of enzymes necessary for thyroid hormone synthesis. If left untreated, it impairs hormone production leading to developmental and metabolic complications. Morphologically, it is characterized by architectural and cellular pleomorphism that may mimic thyroid malignancy causing difficulties in diagnosis.
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