Bibliographic record
Abstract
Lymphangiomas are benign abnormal collections of lymphatic vessels forming a mass composed of cystic spaces of variable size, which have the potential for local extension, thereby infiltrating surrounding structures. Lymphangiomas, cystic hygromas, and lymphangiomatosis can affect almost any area of the body where lymphatics are present, but predominate in the head, neck and axilla. Constituting 5.6% of all benign lesions of infancy and childhood, lymphangiomas have no predilection for sex or race. Lymphangiomas can also occur in the lung, gastrointestinal tract, spleen, liver and bone, and may be a manifestation of multifocal disease if found in these last three organs. Abdominal lymphangiomas are rare. Lymphangiomas should not be confused with primary lymphedema, a disorder in children and adolescents causing swelling in an extremity. This condition is associated with several genetic syndromes and in contrast to lymphangiomas has the potential for malignant transformation with time. Gross observed that 65% of lymphangiomas were apparent at birth, and that 90% appeared by the end of the second year of life. The principal mode of presentation is that of a disfiguring, usually slow growing mass. Rapid enlargement, sometimes overnight, may occur following systemic infection or bleeding into the tumor. Etiology and pathogenesis The etiology of lymphangiomatous malformations is believed to be a developmental defect in lymphatic pathways which develop from the sixth week of gestation onwards, resulting in obstructed or inadequate efferent channels and proximal dilatation of afferent channels. The lymphatic system develops from five primitive sacs originating from the venous system.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.035 | 0.017 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".