Gastric hamartomatous inverted polyps (GHIPs), characterized by the downward growth of hyperplastic mucosal component into the submucosal layer [ 1 ], account for fewer than 1% of all gastric polyps [ 2 ]. They have also been called gastric …

Hamartoma belongs to a family of neoplasms, named epithelioid angiomyolipoma/pure epithelioid (PEComa). Although hamartoma is the most common benign tumor, worrisome features may be observed, such as the increase of tumor volume and the rupture …

PTEN hamartoma tumor syndrome (PHTS) is a disease with a broad spectrum of signs and symptoms. First described in 1993, it includes the classical Cowden syndrome (CS), Bannayan-Riley-Ruvalcaba syndrome (BRRS), Lhermitte-Duclos disease (LDD), and …

Cronkhite‒Canada syndrome (CCS) is a rare, nonhereditary disease characterized by diffuse gastrointestinal (GI) polyposis, presenting with refractory diarrhea, abdominal pain, and anorexia, alongside an ectodermal triad of alopecia, nail changes …

The decision of whether to perform a large anatomic resection for a lung mass that is not definitely malignant comes often forward in the everyday practice of the thoracic surgeon. The general characteristics of the tumor as well as of the patient …

Hypothalamic hamartoma (HH) is an ectopic, non-neoplastic nerve tissue containing normal neurons and glial cells (oligodendrocytes and astrocytes) [ 1 ], which generally originates from the third ventricular floor, tuber cinereum, or mammillary …

Mesenchymal cystic hamartoma (MCH) of the lung is a rare pulmonary neoplasm that has favorable outcomes following surgical resection, although it occasionally presents with severe symptoms such as pneumothorax and hemothorax. MCH is radiologically …

Hypothalamus hamartomas (HHs) are rare, congenital, tumor-like, and nonprogressive malformations composed of heterotopic neurons and glia surrounding the hypothalamus [ 1 ]. The incidence of HH is estimated to be within the range of one per 50,000 …

The definition of hamartoma is “a focal tissue malformation resembling a neoplasm caused by maldevelopment of the organ” [ 1 ]. The most common benign tumor of the lung are pulmonary hamartomas mostly observed as peripheral solitary foci consisting …

Pulmonary hamartoma is the most commonly resected benign neoplasm of lung. The mesenchymal cystic subtype is a rare and often bilaterally occurring variant composed of multiple cysts and nodules. Herein, we present an asymptomatic 70-year-old …

Retina astrocytic hamartoma (RAH) is a rare benign glial tumor arising from a retinal nerve fiber layer. It is the most common ophthalmoscopic finding in patients with tuberous sclerosis complex (TSC). RAH may also rarely occur in patients with …