LAM features hamartomatous
proliferation of smooth muscle in the lungs, mediastinum and abdomen (2,6).
These were thought to most likely represent hamartomatous
polyps with regenerative changes.
7) Hematoxylin-eosin staining of a type I primary lesion with hamartomatous
features (admixed collagen, corded and streaked architecture) is shown in the Figure, A through C.
Cervical lymphangioma is a benign hamartomatous
hyperplasia of lymphatic vessels, and it accounts for up to 90% of all lymphangiomas in the head and neck region.
5) In our case, the patient had Peutz-Jeghers syndrome; this is a dominantly inherited human disorder characterised by gastrointestinal hamartomatous
polyposis and mucocutaneous melanin pigmentation.
2) The polyps are nonadenomatous juvenile or hamartomatous
polyps that occur throughout the gastrointestinal tract except for characteristic sparing of the esophagus.
Based on morphologic, embryologic, and clinicopathologic observations, it is believed that nasolabial cysts are hamartomatous
developmental lesions, (18) arising from the lower anterior portion of the nasolacrimal duct (Figure 1).
They are described as hypertrophy, hyperplasia or hamartomatous
proliferations in the few published reports (2).
Hemimegalencephaly is unilateral megalencephaly that is isolated, part of a hemihypertrophy syndrome or the result of hamartomatous
overgrowth of one cerebral hemisphere.
The classification of mesenchymal hamartomatous
lesions of the nasal cavity is somewhat confusing because of the nomenclature and because of our incomplete understanding of their pathogenesis.
Peutz-Jeghers syndrome is a rare disease characterized by mucocutaneous hyperpigmentation and intestinal hamartomatous
polyps of the colon: ganglioneuromatous, stromal, and lipomatous.