INTRODUCTION Choristoma is defined as the presence of cells in abnormal locations due to defects during embryological development. The word choristoma implies a neoplasm; whereas heterotopia refers to a displaced tissue without necessarily being a swelling or a neoplasm. Literature contains reports of cartilaginous choristoma in the cervix, endometrium, breast tissue, and oral region. CASE RE...

ABSTRACT: Multiple congenital malformations can occur concomitantly in several species since the anomaly one organ may lead directly to malformation of another. Additionally, etiology is not always clarified. Choristoma refers an ectopic tissue that histologically normal abnormal location. A case pulmonary and nodal choristoma associated with cranioschisis, hydrocephalus, syringomyelia a new-bo...

Salivary gland choristoma of the middle ear cavity is a very rare condition. These lesions are a result of a defective embryonic development and their adjacent structures may be associated with abnormalities. Here we report a case of salivary gland choristoma of the middle ear who presented to Be'sat Hospital, Tehran, Iran in 2015 with unilateral conductive hearing loss. There are 41 case repor...

Comment. Deficiency of MBL has been correlated with a variety of infections in otherwise healthy individuals but may also enhance susceptibility to certain infections in persons receiving chemotherapy or those with secondary immunosuppression for other reasons. Genetic polymorphism explains the range of serum concentrations of MBL found in the general population, with severe serum MBL deficienc...

Heterotopic gastric mucosa tissue is also called gastric choristoma, and this type of lesion can be found anywhere in the alimentary tract. However, gastric choristoma in the pharynx is very rare; only 10 cases of pharyngeal gastric choristoma have been reported in the English medical literature. A 32-yr-old woman was referred to our institution for the evaluation of a large mass that originate...

The present report describes the accidental detection of ectopic intestinal gland like structures with interspersed goblet cells in a mesenteric lymph node from an crossbred adult goat, which was infected with Mycobacterium avium subsp. paratuberculosis. The histomorphological features reminded intestinal epithelium, and glandular choristoma was diagnosed. This report is to our knowledge, the f...

Salivary gland choristoma (heterotopic salivary gland tissue) is a rare condition typically seen in the newborn period. This developmental heterotopia is generally nonprogressive, with little risk of malignant transformation. We present the second known reported case of a salivary gland choristoma located on the anterior chest wall. Knowledge of this rare entity will allow for accurate diagnosi...

The cartilaginous choristoma in children is very rare in literature. Its treatment is complete surgical removal as promptly as possible in order to get an exact histopathological diagnosis. In this study we present and discuss a 10mo-old girl with cartilaginous choristoma located subcutaneously just on the left sternocleidomastoid muscle without any associated anomalies such as branchial remnants.

FROM time to time in post-mortem reports, a small tumour of the posterior pituitary stalk, called a choristoma, is an incidental finding. Looking through the reports of the Pathology Department of Queen's University, it was possible to find thirty cases of choristoma over the past twenty years. The tumour was first noticed by Boyce and Beadle in 1893, but was called "Choristoma" by Sternberg in...

Glial choristoma is considered to be a type of brain heterotopia consisting of ectopic central nervous tissue. We herein report a neonate with glial choristoma of the tongue who developed respiratory distress due to airway obstruction. A male neonate presented with respiratory distress due to a soft mass on the midline region of the dorsal tongue base at birth. He was intubated using a flexible...